IP Library › Granted Patent US 12,208,571
Granted Patent B2
US 12,208,571 · App. 17/513,618 · Granted Jan 28, 2025

Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

Inventors: Akira Saito (Kanagawa, JP); Yasuyuki Yamashita (Kanagawa, JP); Kiichi Kamoda (Kanagawa, JP); Shigenori Yaguchi (Tokyo, JP); Nozomu Tamoto (Shizuoka, JP); Hitoshi Iwatsuki (Kanagawa, JP); Shinzo Higuchi (Tokyo, JP); Sohichiroh Iida (Kanagawa, JP); Yasuo Suzuki (Shizuoka, JP)
Assignee: Ricoh Company, Ltd.
B29C64/153B33Y70/00B33Y70/10C08F110/06C08G8/02C08G63/183C08G67/00C08G69/26C08J3/12C08K3/016C08K5/0066B29K2101/12B29K2105/251B29K2995/0041B33Y10/00C08J2361/00C08J2361/16C08J2367/02C08J2367/04C08J2377/02C08J2377/08C08J2377/10
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,208,571
App. No.
17/513,618
Granted
Jan 28, 2025
Kind
B2
Abstract

A resin powder for solid freeform fabrication has a 50 percent cumulative volume particle diameter of from 5 to 100 μm and a ratio (Mv/Mn) of a volume average particle diameter (Mv) to the number average particle diameter (Mn) of 2.50 or less and satisfies at least one of the following conditions (1) to (3): (1): Tmf1>Tmf2 and (Tmf1−Tmf2)≥3 degrees C., both Tmf1 and Tmf2 are measured in differential scanning calorimetry measuring according to ISO 3146. (2): Cd1>Cd2 and (Cd1−Cd2)≥3 percent, both Cd1 and Cd2 are measured in differential scanning calorimetry measuring according to ISO 3146, and (3): C×1>C×2 and (C×1−C×2)≥3 percent.

Claims (33)

1. A method of manufacturing a solid freeform fabrication object, comprising:

forming a layer including a resin powder,

wherein the resin powder has a 50 percent cumulative volume particle diameter of from 5 to 100 μm, a ratio (Mv/Mn) of a volume average particle diameter (Mv) to a number average particle diameter (Mn) of 1.50 or less, and satisfies at least one of the following conditions (1) to (3):

(1): Tmf1>Tmf2 and (Tmf1−Tmf2)≥3 degrees C., where Tmf1 represents a melting starting temperature of an endothermic peak as the resin powder is heated to a temperature 30 degrees C. higher than a melting point of the resin powder at a temperature rising speed of 10 degrees C. per minute for a first time, and

Tmf2 represents a melting starting temperature of an endothermic peak as the resin powder is heated for the first time, cooled down to −30 degrees C. or lower at a temperature falling speed of 10 degrees C. per minute, and heated to the temperature 30 degrees C. higher than the melting point at a temperature rising speed of 10 degrees C. per minute for a second time, and

both Tmf1 and Tmf2 are measured in differential scanning calorimetry measuring according to ISO 3146, wherein the melting starting temperature of the endothermic peak represents a temperature at a point −15 mW lower from a straight line parallel to X axis drawn from a site where quantity of heat becomes constant after endotherm at the melting point finishes to a lower temperature side,

(2): Cd1>Cd2 and (Cd1−Cd2)≥3 percent,

where Cd1 represents a crystallinity obtained from an energy amount of the endothermic peak when the resin powder is heated to a temperature 30 degrees C. higher than the melting point of the resin powder at a temperature rising speed of 10 degrees C. per minute for a first time, and Cd2 represents a crystallinity obtained from an energy amount of the endothermic peak as the resin powder is heated for the first time, cooled down to −30 degrees C. or lower at a temperature falling speed of 10 degrees C. per minute, and heated to the temperature 30 degrees C. higher than the melting point at a temperature rising speed of 10 degrees C. per minute for a second time, and

both Cd1 and Cd2 are measured in differential scanning calorimetry measuring according to ISO 3146, and

(3): C×1>C×2 and (C×1−C×2)≥3 percent,

where C×1 represents a crystallinity of the resin powder obtained by X-ray diffraction measuring, and C×2 represents a crystallinity obtained by X-ray diffraction measuring as the resin powder is heated to the temperature 30 degrees C. higher than the melting point thereof at a temperature rising speed of 10 degrees C. per minute, cooled down to −30 degrees C. or lower at a temperature falling speed of 10 degrees C. per minute, and thereafter heated to the temperature 30 degrees C. higher than the melting point at a temperature rising speed of 10 degrees C. per minute in nitrogen atmosphere; and

irradiating the layer with electromagnetic waves to melt the layer, and

wherein said resin powder comprises at least one thermoplastic resin selected from the group consisting of a polyolefin, a polyarylketone, a polyphenylene sulfide, a liquid crystal polymer, a polyacetal, a polyimide and a fluorochemical resin,

the resin powder has an average circularity of from 0.83 to 0.89 in a range in which the resin powder has a particle diameter of from 0.5 to 200 μm,

the resin powder is constituted by resin particles having a pillar-like form,

the resin powder has no shell portions, and

a proportion of pillar-like form particles to resin powder of 90% by mass or greater.

2. The method according to claim 1 , wherein the method is a selective laser sintering (SLS) method.

3. The method according to claim 1 , wherein the resin powder has a 50 percent cumulative volume particle diameter of from 15 to 100 μm.

4. The method according to claim 1 , wherein the resin powder has a melting point of 100 degrees C. or higher as measured according to ISO 3146.

5. The method according to claim 1 , wherein said resin powder satisfies at least one of the following conditions (2) to (3).

6. A method of manufacturing a solid freeform fabrication object, comprising:

forming a layer including a resin powder,

wherein the resin powder has a 50 percent cumulative volume particle diameter of from 5 to 100 μm, a ratio (Mv/Mn) of a volume average particle diameter (Mv) to a number average particle diameter (Mn) of 2.50 or less, and satisfies at least one of the following conditions (2) and (3):

(2): Cd1>Cd2 and (Cd1−Cd2)≥3 percent, where Cd1 represents a crystallinity obtained from an energy amount of the endothermic peak when the resin powder is heated to a temperature 30 degrees C. higher than the melting point of the resin powder at a temperature rising speed of 10 degrees C. per minute for a first time, and Cd2 represents a crystallinity obtained from an energy amount of the endothermic peak as the resin powder is heated for the first time, cooled down to −30 degrees C. or lower at a temperature falling speed of 10 degrees C. per minute, and heated to the temperature 30 degrees C. higher than the melting point at a temperature rising speed of 10 degrees C. per minute for a second time, and both Cd1 and Cd2 are measured in differential scanning calorimetry measuring according to ISO 3146, and

(3): C×1>C×2 and (C×1−C×2)≥3 percent,

where C×1 represents a crystallinity of the resin powder obtained by X-ray diffraction measuring, and

C×2 represents a crystallinity obtained by X-ray diffraction measuring as the resin powder is heated to the temperature 30 degrees C. higher than the melting point thereof at a temperature rising speed of 10 degrees C. per minute, cooled down to −30 degrees C. or lower at a temperature falling speed of 10 degrees C. per minute, and thereafter heated to the temperature 30 degrees C. higher than the melting point at a temperature rising speed of 10 degrees C. per minute in nitrogen atmosphere; and

irradiating the layer with electromagnetic waves to melt the layer, and

wherein said resin powder comprises at least one thermoplastic resin selected from the group consisting of a polyolefin, a polyarylketone, a polyphenylene sulfide, a liquid crystal polymer, a polyacetal, a polyimide and a fluorochemical resin,

the resin powder has an average circularity of 0.87 or greater in a range in which the resin powder has a particle diameter of from 0.5 to 200 μm,

the resin powder is constituted by resin particles having a pillar-like form, and

the resin powder has no shell portions.

Priority Claims (4)
JP 2016-144862 · Jul 22, 2016 · national
JP 2017-049036 · Mar 14, 2017 · national
JP 2017-111488 · Jun 6, 2017 · national
JP 2017-138268 · Jul 14, 2017 · national
Continuity (2)
Division 15656248 · Jul 21, 2017
Related Publication 20220048245A1 · Feb 17, 2022
References Cited (174)
US 2834053A · Bilanin et al. · 1958 [cited by applicant]
US 5342919A · Dickens, Jr. et al. · 1994 [cited by applicant]
US 5527877A · Dickens, Jr. et al. · 1996 [cited by applicant]
US 5817206A · McAlea et al. · 1998 [cited by applicant]
US 6245281B1 · Scholten et al. · 2001 [cited by applicant]
US 6531086B1 · Larsson · 2003 [cited by applicant]
US 7794647B1 · Deckard · 2010 [cited by applicant]
US 8022168B2 · Weinhold et al. · 2011 [cited by applicant]
US 11066758B2 · Saito · 2021 [cited by examiner]
US 11491713B2 · Saito · 2022 [cited by examiner]
US 11926931B2 · Saito · 2024 [cited by examiner]
US 20060246287A1 · Gersch et al. · 2006 [cited by applicant]
US 20080124475A1 · Kritchman · 2008 [cited by applicant]
US 20080166496A1 · Monsheimer et al. · 2008 [cited by applicant]
US 20080258330A1 · Muller et al. · 2008 [cited by applicant]
US 20090017219A1 · Paasche et al. · 2009 [cited by applicant]
US 20090236775A1 · Monsheimer et al. · 2009 [cited by applicant]
US 20110129682A1 · Kurata et al. · 2011 [cited by applicant]
US 20110143108A1 · Fruth · 2011 [cited by examiner]
US 20130323416A1 · Bertelo et al. · 2013 [cited by applicant]
US 20150259247A1 · Watanabe · 2015 [cited by applicant]
US 20150336292A1 · Mikulak et al. · 2015 [cited by applicant]
US 20160038633A1 · Watanabe · 2016 [cited by examiner]
US 20160215092A1 · Vanelli · 2016 [cited by examiner]
US 20160230021A1 · Yoshino et al. · 2016 [cited by applicant]
US 20170008233A1 · Vontorcik, Jr. et al. · 2017 [cited by applicant]
US 20170260359A1 · Hanyu et al. · 2017 [cited by applicant]
US 20180023219A1 · Salto et al. · 2018 [cited by applicant]
US 20180105669A1 · Otsubo · 2018 [cited by examiner]
US 20180264720A1 · Tamoto · 2018 [cited by examiner]
US 20180264721A1 · Iida et al. · 2018 [cited by applicant]
US 20180355144A1 · Saito et al. · 2018 [cited by applicant]
CN 104910614 · 2017 [cited by applicant]
EP 1413595 · 2004 [cited by applicant]
EP 2177557 · 2010 [cited by applicant]
EP 2985269 · 2016 [cited by applicant]
EP 3239214 · 2017 [cited by applicant]
EP 3272787 · 2018 [cited by applicant]
EP 3272788A1 · 2018 [cited by applicant]
EP 3272788B1 · 2020 [cited by applicant]
EP 3750943 · 2020 [cited by applicant]
JP 11216779 · 1999 [cited by applicant]
JP 2003246864 · 2003 [cited by applicant]
JP 2004114685 · 2004 [cited by applicant]
JP 2006321711 · 2006 [cited by applicant]
JP 2007523774 · 2007 [cited by applicant]
JP 2009013395 · 2009 [cited by applicant]
JP 2009138138 · 2009 [cited by applicant]
JP 2010006057 · 2010 [cited by applicant]
JP 2011107341 · 2011 [cited by applicant]
JP 2013543457 · 2013 [cited by applicant]
JP 2015500375 · 2015 [cited by applicant]
JP 201743654 · 2017 [cited by applicant]
JP 2017111489 · 2017 [cited by applicant]
WO 2005082973 · 2005 [cited by applicant]
WO 2007048536 · 2007 [cited by applicant]
WO 2008057844 · 2008 [cited by applicant]
WO 2008122426 · 2008 [cited by applicant]
WO 2009114715 · 2009 [cited by applicant]
WO 2009135521 · 2009 [cited by applicant]
WO 2011051250 · 2011 [cited by applicant]
WO 2013090174 · 2013 [cited by applicant]
WO 2013138204 · 2013 [cited by applicant]
WO 2015109143 · 2015 [cited by applicant]
WO 2016084928 · 2016 [cited by applicant]
WO 2016101942 · 2016 [cited by applicant]
WO 2016104140 · 2016 [cited by applicant]
ORGASOL 2003 Data Sheet (Year: 2019). [cited by examiner]
Full Public Report of ORGASOL 2001/2002/2003 (Year: 2008). [cited by examiner]
Horiba Scientific, “A Guidebook to Particle Size Analysis”, 2019, 32 pages. [cited by applicant]
Summons to Attend Oral Proceedings pursuant to Rule 115(1) EPC, dated Dec. 23, 2021 in European Application No. 17182489.9, 17 pages. [cited by applicant]
Extended European Search Report dated Aug. 17, 2022, in European Application 22168529.0, 6 pages. [cited by applicant]
Data Sheet, “Orgasol ® Polyamide Powders”, published 2012, 3 pages. [cited by applicant]
Publication date of data sheet Orgasol, Sep. 26, 2012, 1 page. [cited by applicant]
English translation of Japanese Publication No. 2015-500375, 19 pages. [cited by applicant]
English translation of Japanese Publication No. 2017043654, 16 pages. [cited by applicant]
Berretta et al., “Morphology of polymeric powders in Laser Sintering (LS): from polyamide to new PEEK powders”, European Polymer Journal, Mar. 8, 2016, 28 pages. [cited by applicant]
Brief Communication received for European Patent Application No. 20177083.1, mailed on Jan. 26, 2023, 41 pages. [cited by applicant]
Exhibits A-3A of Opposition Against JP Patent No. 6402810 B1 filed by Toray Industries Inc., Mar. 25, 2019, 65 pages including English Translation. [cited by applicant]
Exhibits A-5A of Opposition Against JP Patent No. 6402810 B1 filed by Toray Industries Inc., Oct. 25, 2019, 28 pages including English Translation. [cited by applicant]
Decision revoking the European Patent (Art. 101(2) EPC), EP 3272788B, received in European Patent Application No. 17182489.9, mailed on Sep. 30, 2022, 2 pages. [cited by applicant]
Summary of Facts and Submissions for revoking the European Patent (Art. 101(2) EPC), EP 3272788B, received in European Patent Application No. 17182489.9, mailed on Sep. 30, 2022, 30 pages. [cited by applicant]
Communication of a notice of opposition received for European Patent Application No. 20177083.1, Arkema France, mailed on Jan. 24, 2023, 108 pages with partial English translation. [cited by applicant]
Communication of a notice of opposition received for European Patent Application No. 20177083.1, Evonik Operations GmbH, mailed on Jan. 25, 2023, 8 pages. [cited by applicant]
Communication of notices of opposition (R.79(1) EPC), Notice of Opposition filed within opposition period by Arkema France and Evonik Operations GmbH for European Patent Application No. 20177083.1, mailed on Feb. 1, 202… [cited by applicant]
Parent Application Specification as filed of European Patent Application No. 17182489.9, filed on Jul. 21, 2017, 48 pages. [cited by applicant]
Exploitation d'image MEB of [cited by applicant]
Certified U.S. Appl. No. 61/630,443, Lewis et al., filed Dec. 12, 2011, 63 pages. [cited by applicant]
Malvern, “A basic guide to particle characterization”, 2015, Malvern Instruments Limited, pp. 1-23. [cited by applicant]
Morphologi G3 User Manual, Aug. 11, 2008, 40 pages. [cited by applicant]
Response of the patentee; Response to Rule 70(2) EPC Invitation, dated Jun. 15, 2021, for European Patent Application No. 20177083.1, 5 pages. [cited by applicant]
Schmid et al., “Thermal and Molecular Properties of Polymer Powders for Selective Laser Sintering (SLS)”, AIP Conference Proceedings, vol. 1779, Oct. 31, 2016, pp. 100003-1-100003-5. [cited by applicant]
SEM Images, Orgasol 2003, cited on Jan. 19, 2023 in D20, pp. S.1-S.2. [cited by applicant]
Data sheet of VESTOSINT 1115 nf V200318, Feb. 21, 2019, 2 pages. [cited by applicant]
DCS measurement of VESTOSINT® 1115 naturfarben, Polyamid-12 feinpulver, Product Information, Degussa-Hüls AG, cited on Jan. 19, 2023 in D20, 1 page. [cited by applicant]
Le/ Date Jun. 30, 2023 Considered. [cited by applicant]
European Brief Communication Opposition proceeding dated Feb. 2, 2024, in European Patent Application No. 20177083.1, Patent No. 3750943, 12 pages. [cited by applicant]
Consolidated list of cited opposition documents dated Jan. 29, 2024, in European Patent Application No. 20177083.1, 3 pages. [cited by applicant]
Brief Communication—Opposition proceedings dated Oct. 20, 2023, in European Patent Application No. 20177083.1, Patent No. 3750943, 20 pages. [cited by applicant]
Consolidated List of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 20177083.1, 3 pages. [cited by applicant]
Jeffrey Bodycomb, Ph.D, “Image Analysis: Evaluating Particle Shape”, Calculation of the Circulatory Horiba 2011, Horiba.com, Citation D63 of consolidated list of cited opposition documents dated Oct. 17, 2023, in Europe… [cited by applicant]
“FPIA-3000 brochure”, Malvern, Citation D64 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 20177083.1, 12 pages. [cited by applicant]
Measurement of the particle parameters in FIG 8 of D1, 4 pages, Citation D62 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 20177083.1. [cited by applicant]
“Top 10 Errors in Particle Analysis and how to avoid them”, Microtrac Retsch GmbH, Part of Vender Scientific, pp. 1-7, Citation D58 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Pat… [cited by applicant]
“Microtrac_Active Models & Discontinued Products List”, Citation D59 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 20177083.1, 8 pages. [cited by applicant]
Office Action in the proceedings of the second divisional application (Appl. No. 22 168 529.0), Citation D61 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 201… [cited by applicant]
“Software Explanation of Data Reported by Microtrac Instruments”, Microtrac.com, Citation D60 of consolidated list of cited opposition documents dated Oct. 17, 2023, in European Patent Application No. 20177083.1, 8 page… [cited by applicant]
A-3A report from opposition filed by Toray industries in JP 6402810, dated Mar. 25, 2019, 63 Pages, inlcuding English translation. [cited by applicant]
A-5A report from opposition filed by Toray industries in JP 6402810, dated Oct. 25, 2019, 27 Pages, including English translation. [cited by applicant]
Analysis of Cite No. A105 cited herein from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A95 herein, 2 pages. [cited by applicant]
Analysis of Cite No. A107 from cited herein from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A95 herein, 4 pages Analysis provided by Opposition 3, dated Apr. 8, 2021, 2 pag… [cited by applicant]
Analysis provided by Opposition 3, dated Apr. 8, 2021, 2 pages. [cited by applicant]
Arkema, “Invoices for order of Orgasol 2003 LS, 2012”, 20 pages. [cited by applicant]
Arkema, “Orgasol® Polyamide Powders”, General Bulletin, Sep. 26, 2012, 4 pages. [cited by applicant]
Arkema, Supply Agreement, Jul. 26, 2012, 1 page. [cited by applicant]
Bourell et al., “Performance limitations in polymer laser sintering”, 8th International Conference on Photonic Technologies LANE 2014, Physics Procedia, vol. 56, 2014, pp. 147-156. [cited by applicant]
Certificate Orgasol, Jun. 20, 2012, 6 pages. [cited by applicant]
Certificates of Experimental Results, Oct. 25, 2019, partial English translation of Cite No. A65 cited herein from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A95 herein, 20… [cited by applicant]
Certificates of Experimental Results, Exhibit A-3A, Mar. 25, 2019, 63 pages, including English translation. [cited by applicant]
Certificates of Experimental Results, Exhibit A-5A, Oct. 25, 2019, 7 pages. [cited by applicant]
“Chemical Dictionary 8”, Chemical Dictionary Editorial Committee, 2006, 4 pages. [cited by applicant]
Combined Office Action and Search Report issued May 7, 2019, in Chinese Patent Application No. 201710599617.3, citing document A101 therein, 8 pages (with English translation of categories of cited documents). [cited by applicant]
Email correspondence for the order of Orgasol 2003 LS with attachments, 2012, 15 Pages. [cited by applicant]
Emmanuel Dumoulin, “Fabrication additive de pièces en polymères thermoplastiques hautes performances et en polyamide 12 par le procédé de frittage sélectif par laser”, HAL Archives-Ouvertes, Jan. 23, 2013, 263 pages, wi… [cited by applicant]
English translation of JP 2015-500375, 30 pages provided by Opposition Filed on Apr. 8, 2021, for European Patent Application No. 17182489.9, Cite No. A95 herein. [cited by applicant]
Excerpt from Camsizer Handbook, 1 page. [cited by applicant]
“Experiment Report (PA 12: test data on melting point of product name of VESTOSINT 1115 nf V200318)”, Evonik Resource Efficiency GmbH, 2019, 4 pages. [cited by applicant]
Extended European Search Report issued Dec. 5, 2017, in Patent Application No. 17182489.9, citing references A1, A18, A12, A49 and A24 therein, 7 pages. [cited by applicant]
Fulcher et al., “Effect of segregated first and second melt point on laser sintered part quality and processing”, 2012, pp. 556-564. [cited by applicant]
Gardner et al., “Structure, crystallization and morphology of poly(aryl ether ketone ketone)”, Polymer, vol. 33, No. 12, 1992, pp. 2483-2495. [cited by applicant]
Ghita et al., “Physico-chemical behavior of Poly (Ether Ketone) (PEK) in High Temperature Laser Sintering (HT-LS)”, Journal of Materials Processing Technology, vol. 214, 2014, pp. 969-978. [cited by applicant]
ISO 3146, Jun. 1, 2000, 8 pages, with English translation. [cited by applicant]
ISO 9276-2, May 15, 2014, 36 pages. [cited by applicant]
Japanese Evidence Certificate by Toray on Jan. 30, 2020, in Patent Application No. 2019-700260, 19 pages. [cited by applicant]
Japanese Experimental Certificate by Toray on Oct. 25, 2019, in Patent Application No. 2019-700260, 20 pages. [cited by applicant]
Japanese Notice of Reasons for Revocation issued on Jan. 30, 2020, in Japanese Patent Application No. 6402810, citing documents A83, A80 and A79, 38 pages (with partial English Translation). [cited by applicant]
Japanese Office Action issued on May 29, 2018, in Patent Application No. 2017-138268, 2 pages. [cited by applicant]
Japanese Statement by Toray issued on Oct. 30, 2019, in Patent Application No. 2019-700260, 1 page. [cited by applicant]
Measuring—Orgasol 2003 LS, 5 pages. [cited by applicant]
Measuring—Orgasol 2003, LS, 5. [cited by applicant]
Measuring PP R201, 4 pages. [cited by applicant]
“Measuring result of Polypropylen-Pulvers, PP R201”, Mar. 1, 2021, 1 page. [cited by applicant]
Measuring Tmf1 and Tmf2 (Orgasol 2003), LS; partial English translation included, 1 page. [cited by applicant]
Measuring Tmf1 and Tmf2 (PP R201), 1 page. [cited by applicant]
Office Action in corresponding European Patent Application No. 20177083, issued Oct. 23, 2020. [cited by applicant]
Office Action issued Apr. 10, 2019, in Japanese Patent Application No. 6402810, citing documents A29, A50, A38, A66, A72 and A98 therein, 45 pages (with partial English translation). [cited by applicant]
Office Action Issued Apr. 5, 2019, in Japanese Patent Application No. 6402810, citing document A38 therein, 50 pages (with partial English translation). [cited by applicant]
Office Action issued Jul. 16, 2019, in Japanese Patent Application No. 6402810, 50 pages (with partial English translation). [cited by applicant]
Opposition Filed on Apr. 8, 2021, for European Patent Application No. 17182489.9, 22 pages. [cited by applicant]
Opposition Filed on Apr. 8, 2021, for European Patent Application No. 17182489.9, 34 pages, with English translation. [cited by applicant]
Opposition Filed on Apr. 8, 2021, for European Patent Application No. 17182489.9, 55 pages, with English translation. [cited by applicant]
PerkinElmer, Differential Scanning Calorimetry (DSC), A Beginner's Guide, 2010, 16 pages. [cited by applicant]
“Product information on VESTOSINT 1115 naturfarben Polyamid-12 Feinpulver”, Degussa-Hüls AG, 2000, 2 pages. [cited by applicant]
Reference MB14a from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A95 herein ,3 pages. [cited by applicant]
Reference MB14b from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A95 herein, 3 pages. [cited by applicant]
Ricoh Introduces Selective Laser Sintering (SLS) Industrial Grade 3D Printer Ricoh AM S5500P, 24Maker.com, https://www.24maker.com/thread-10456-1.1html, 2015, 7 pages (with partial English translation). [cited by applicant]
Schmid et al., “Additive Manufacturing: Polymers applicable for Laser Sintering (LS)”, International Conference on Manufacturing Engineering and Materials, ICMEM, 2016, Procedia Engineering, vol. 149, Jun. 6-10, 2016, p… [cited by applicant]
Schmid et al., Analysis of A107 from Opposition Filed on Apr. 8, 2021 for European Patent Application No. 17182489.9, Cite No. A96 herein, 6 pages. [cited by applicant]
M. Schmid et al., “iCoPP-Polypropylen für Additive Manufacturing”, Additive Manufacturing Forschung Plastics, Now!, Oct. 2012, pp. 2-3, with partial English translation. [cited by applicant]
Schmid et al., “iCoPP—A New Polyolefin for additive manufacturing (SLS)”, International Conference on Additive Manufacturing, Loughborough UK, Jul. 11-13, 2011, 17 pages. [cited by applicant]
Schmid et al., “Influence of the Origin of Polyamide 12 Powder on the Laser Sintering Process and Laser Sintered Parts”, Applied Sciences, vol. 7, No. 462, 2017, pp. 1-15. [cited by applicant]
Schmid et al., “Materials perspective of polymers for additive manufacturing with selective laser sintering”, Journal of materials Research, vol. 29(17), Jul. 8, 2014, pp. 1824-1832. [cited by applicant]
Schmid et al., “Polymer powders for selective laser sintering (SLS)”, AIP Conference Proceedings, vol. 1664, May 22, 2015, pp. 160009-1-160005. [cited by applicant]
Schmid et al., “Presentation: iCoPP—A New Polyolefin for additive manufacturing (SLS)”, International Conference on Additive Manufacturing, Loughborough UK, Jul. 11-13, 2011, 29 pages. [cited by applicant]
Sommereyns et al., “Evaluation of essential powder properties through complementary particle size analysis methods for laser powder bed fusion of polymers”, 11th CIRP Conference on Photonic Technologies [LANE 2020], vol… [cited by applicant]
Stephane Dupin, Etude fondamentale de la transformation du polyamide 12 par frittage laser: mécanismes physico-chimiques et relations microstructures/propriétés, HAL Archives-Ouvertes, Jul. 5, 2012, 224 pages, with part… [cited by applicant]
Tencé-Girault et al., “Simultaneous SAXS-WAXS Experiments on Semi-Crystalline Polymers: Example of PA11 and Its Brill Transition”, Crystals, vol. 9, No. 271, 2019, pp. 1-17. [cited by applicant]
Vanelli et al., U.S. Appl. No. 61/630,443, filed Dec. 12, 2011, 63 pages. [cited by applicant]
Verbelen et al., “Characterization of polyamide powders for determination of laser sintering processability”, European Polymer Journal, vol. 75, 2016, pp. 163-174. [cited by applicant]
Vestosint®, “Vestosint® 1115 naturfarben”, Data Sheet, 1 page, with partial English translation. [cited by applicant]
VICTREX® PEEK 150PF, Material Data Sheet, revised 2018), 2018. [cited by applicant]
Wulfhorst et al., Forschungsbericht RWTH Aachen, 2011, pp. 1-121, with partial English translation. [cited by applicant]
Wulfhorst et al., “Substitution of powders by ultra short cut fibers for selective laser sintering (SLS)”, AUTEX Conference, Jun. 8-10, 2011, pp. 13-18. [cited by applicant]
Yukio Kanehara, Trial Corporation Presentation, 2 AM-Symposium, Jan. 25, 2012, 54 pages, including English translation. [cited by applicant]