IP Library › Granted Patent US 12,435,246
Granted Patent B2
US 12,435,246 · App. 17/427,136 · Granted Oct 7, 2025

Matte flame retardant label

Inventors: Zhongfei Lv (Kunshan, CN); Yurun Yang (Shanghai, CN); Shuhui Xie (Kunshan, CN); Biao Shen (Shanghai, CN); Yu Wang (Suzhou Industrial Park, CN); Fuhai Zhou (Kunshan, CN)
Assignee: Avery Dennison Corporation
C09J7/38C09J7/29G09F3/02G09F3/10H01M50/143B32B2255/26B32B2307/3065B32B2457/10C09J2301/41C09J2400/283C09J2433/006C09J2467/006C09J2475/006G09F2003/0225G09F2003/0232G09F2003/0257
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 12,435,246
App. No.
17/427,136
Granted
Oct 7, 2025
Kind
B2
Abstract

Provided herein is a flame retardant label suitable for labeling electrical devices. The disclose label includes a coating layer, a film layer, an adhesive layer, and, optionally, a liner layer. The coating layer and the adhesive layer may include flame retardants. The flame retardant label may also include channels that provide for air egress during application of the label.

Claims (35)

1. A flame retardant label, comprising:

a coating layer, comprising a first base polymer, a first crosslinker, and a first flame retardant agent, wherein the first base polymer is a polyester;

a film layer; and

an adhesive layer, comprising a second base polymer, a second flame retardant agent, a tackifier, and a second crosslinker.

2. The flame retardant label of claim 1 , wherein the adhesive layer is in contact with at least a portion of the film layer.

3. The flame retardant label of claim 1 , wherein each of the coating layer, the film layer, and the adhesive layer comprises a top surface and a bottom surface.

4. The flame retardant label of claim 1 , wherein the adhesive layer defines channels for air egress.

5. The flame retardant label of claim 4 , wherein the channels are arranged as tessellating rhombuses.

6. The flame retardant label of claim 1 , wherein the flame retardant label has a haze value from 5 to 80.

7. The flame retardant label of claim 1 , wherein the first base polymer has a hydroxyl value greater than 100 mgKOH/g.

8. The flame retardant label of claim 1 , wherein the second base polymer comprises a polyester, polyacrylate, or combinations thereof.

9. The flame retardant label of claim 1 , wherein the second base polymer has a hydroxyl value less than 100 mgKOH/g.

10. The flame retardant label of claim 1 , wherein the second base polymer has an acid value less than 100 mgKOH/g.

11. The flame retardant label of claim 1 , wherein the second base polymer has a glass transition temperature ranging from −50° C. to 10° C.

12. The flame retardant label of claim 1 , wherein the weight ratio of the tackifier in the adhesive layer to the second base polymer is from 1:10 to 1.5:1.

13. The flame retardant label of claim 1 , wherein the first crosslinker comprises isocyanate.

14. The flame retardant label of claim 1 , wherein the first flame retardant agent comprises organic phosphinates.

15. The flame retardant label of claim 1 , wherein the second flame retardant agent comprises organic phosphinates.

16. The flame retardant label of claim 1 , wherein the tackifier in the adhesive layer has an average softening point below 125° C.

17. The flame retardant label of claim 1 , wherein the tackifier in the adhesive layer comprises a rosin, a terpene, coumarone, or derivatives thereof, or combinations thereof.

18. The flame retardant label of claim 1 , wherein the second crosslinker comprises isocyanate, epoxy, or combinations thereof.

19. The flame retardant label of claim 1 , wherein the film layer comprises one or more resins selected from the group consisting of polyester, ABS, polyacrylate, polycarbonate (PC), polyamide, polyimide (PI), polyamidoimide, polyacetal, polyphenylene oxide (PPO), polysulfone, polyethersulfone (PES), polyphenylene sulfide, polyether ether ketone (PEEK), polyetherimide (PEI), metallized polyethylene terephthalate (PET), polyvinyl fluoride (PVF), polyethylene ether (PEE), fluorinated ethylene propylene (FEP), polyurethane (PUR), liquid crystal polymers (LCPs, class of aromatic polyester), polyvinylidene fluoride (PVDF), aramid fibers, polyethylene naphthalate (PEN), ethylene/tetrafluoroethylene (E/TFE), polyphenyl sulfone (PPSU).

20. The flame retardant label of claim 1 , wherein the thickness of the coating layer is from 1 to 30 μm.

21. The flame retardant label of claim 1 , wherein the thickness of the film layer is from 10 to 60 μm.

22. The flame retardant label of claim 1 , wherein the coat weight of the adhesive layer is from 5 to 50 g/m2.

23. The flame retardant label of claim 1 , wherein the flammability rating of the flame retardant label satisfies VTM-0.

24. The flame retardant label of claim 1 , wherein the bottom surface is the surface facing an object to be labeled and the top surface is the surface on the opposite side of the bottom surface.

25. The flame retardant label of claim 1 , wherein the flame retardant label further comprises a liner layer that contacts the bottom surface of the adhesive layer.

26. The flame retardant label of claim 25 , wherein the liner layer comprises an embossed plastic paper.

27. The flame retardant label of claim 25 , wherein the liner layer comprises glassine, kraft paper or other papers coated with a liner polymer.

28. The flame retardant label of claim 1 , wherein the coating layer comprises a polyester in an amount ranging from 25 wt. % to 40 wt. %; wherein the first base polymer has a hydroxyl value greater than 100 mgKOH/g; wherein the second base polymer has a hydroxyl value less than 80 mgKOH/g and an acid value less than 35 mgKOH/g; wherein the second base polymer has a glass transition temperature ranging from −40° C. to 0° C.; and wherein the flammability rating of the flame retardant label satisfies VTM-0.

29. The flame retardant label of claim 1 , wherein the thickness of the coating layer is 5 to 15 μm, the thickness of the film layer is 20 to 30 μm, and the coat weight of the adhesive layer is 15 to 25 g/m2.

30. The flame retardant label of claim 1 , wherein the first crosslinker comprises isocyanate; the first flame retardant agent comprises an organic phosphinate; the second flame retardant agent comprises an organic phosphinate; the tackifier comprises a terpene or a rosin; and the second crosslinker comprises isocyanate or epoxy.

31. The flame retardant label of claim 1 , wherein the first crosslinker comprises isocyanate; the first flame retardant agent comprises an organic phosphinate; the second flame retardant agent comprises an organic phosphinate; the tackifier comprises a terpene or a rosin; the second crosslinker comprises isocyanate or epoxy; and wherein the flammability rating of the flame retardant label satisfies VTM-0.

32. The flame retardant label of claim 1 , wherein the flame retardant label is affixed to a battery surface or a battery wrapping.

Assignments (1)
CHANGE OF CORPORATE ADDRESS Recorded Jul 9, 2024
From: AVERY DENNISON CORPORATION
To: AVERY DENNISON CORPORATION
Reel/Frame 068236/0627 →
Continuity (1)
Related Publication 20220098447A1 · Mar 31, 2022
References Cited (90)
US 5780534A · Kleiner et al. · 1998 [cited by applicant]
US 6203885B1 · Sher et al. · 2001 [cited by applicant]
US 6524649B1 · Sher et al. · 2003 [cited by applicant]
US 6582789B1 · Sumi · 2003 [cited by applicant]
US 6656567B1 · Abe et al. · 2003 [cited by applicant]
US 6759110B1 · Fleming et al. · 2004 [cited by applicant]
US 6803072B2 · Sher et al. · 2004 [cited by applicant]
US 6838142B2 · Yang et al. · 2005 [cited by applicant]
US 6858285B1 · Hamilton et al. · 2005 [cited by applicant]
US 7087279B2 · Callahan et al. · 2006 [cited by applicant]
US 7332206B2 · Callahan et al. · 2008 [cited by applicant]
US 7338693B2 · Shikano et al. · 2008 [cited by applicant]
US 7790790B2 · Karayianni et al. · 2010 [cited by applicant]
US 7867601B2 · Ikishima et al. · 2011 [cited by applicant]
US 8101884B2 · Kato et al. · 2012 [cited by applicant]
US 8313822B2 · Hatakenaka · 2012 [cited by applicant]
US 8323773B2 · Flanigan et al. · 2012 [cited by applicant]
US 8440288B2 · Kanda · 2013 [cited by applicant]
US 8658285B2 · Hinton et al. · 2014 [cited by applicant]
US 8920905B2 · Sauter et al. · 2014 [cited by applicant]
US 8980399B2 · Morioka et al. · 2015 [cited by applicant]
US 9133368B2 · Tomino · 2015 [cited by applicant]
US 9353294B2 · Fleming et al. · 2016 [cited by applicant]
US 9376598B2 · Kanda · 2016 [cited by applicant]
US 9422460B2 · Yoo et al. · 2016 [cited by applicant]
US 9555602B2 · Sherman et al. · 2017 [cited by applicant]
US 9631123B2 · Aoyama et al. · 2017 [cited by applicant]
US 9676967B2 · Ebenau et al. · 2017 [cited by applicant]
US 9911367B2 · Lux et al. · 2018 [cited by applicant]
US 10360823B2 · Iwasawa et al. · 2019 [cited by applicant]
US 20050181164A1 · Plumarta et al. · 2005 [cited by applicant]
US 20060020064A1 · Bauer et al. · 2006 [cited by applicant]
US 20060051551A1 · Shikano et al. · 2006 [cited by applicant]
US 20060172104A1 · Lim et al. · 2006 [cited by applicant]
US 20070054093A1 · Sakurai et al. · 2007 [cited by applicant]
US 20070158259A1 · Ludwig · 2007 [cited by applicant]
US 20070166510A1 · Kato et al. · 2007 [cited by applicant]
US 20070218269A1 · Kato et al. · 2007 [cited by applicant]
US 20070254136A1 · Kato et al. · 2007 [cited by applicant]
US 20080014407A1 · Katoh et al. · 2008 [cited by applicant]
US 20080032118A1 · Kato et al. · 2008 [cited by applicant]
US 20080241529A1 · Bauer et al. · 2008 [cited by applicant]
US 20090053467A1 · Kato et al. · 2009 [cited by applicant]
US 20090136711A1 · Tomino et al. · 2009 [cited by applicant]
US 20100092730A1 · Tomino et al. · 2010 [cited by applicant]
US 20100209671A1 · Kato · 2010 [cited by applicant]
US 20110014411A1 · Hagiwara et al. · 2011 [cited by applicant]
US 20120164442A1 · Ong et al. · 2012 [cited by applicant]
US 20120222805A1 · Shintani et al. · 2012 [cited by applicant]
US 20130260992A1 · Nahm · 2013 [cited by applicant]
US 20140248458A1 · Sherman et al. · 2014 [cited by applicant]
US 20150017373A1 · Aoyama et al. · 2015 [cited by applicant]
US 20150275050A1 · Wei-Cheng et al. · 2015 [cited by applicant]
US 20150321407A1 · Dooley et al. · 2015 [cited by applicant]
US 20160194466A1 · Nakamura et al. · 2016 [cited by applicant]
US 20170009108A1 · Mitchell et al. · 2017 [cited by applicant]
US 20170044404A1 · Yamamoto et al. · 2017 [cited by applicant]
US 20170073550A1 · Barrios et al. · 2017 [cited by applicant]
US 20170080677A1 · Wada et al. · 2017 [cited by applicant]
US 20170080697A1 · Wada et al. · 2017 [cited by applicant]
US 20170080698A1 · Wada et al. · 2017 [cited by applicant]
US 20170137671A1 · Ogomi et al. · 2017 [cited by applicant]
US 20170144362A1 · Nakayama et al. · 2017 [cited by applicant]
US 20170198168A1 · Baetzold et al. · 2017 [cited by applicant]
US 20170204295A1 · Pillalamarri et al. · 2017 [cited by applicant]
US 20180072922A1 · Canale · 2018 [cited by applicant]
US 20180350271A1 · Schmitt et al. · 2018 [cited by applicant]
US 20180362809A1 · Xie et al. · 2018 [cited by applicant]
CN 102131640 · 2011 [cited by applicant]
CN 102695766 · 2012 [cited by applicant]
CN 203982691U · 2014 [cited by applicant]
CN 105980153 · 2016 [cited by applicant]
CN 106437072 · 2017 [cited by applicant]
CN 106575491 · 2017 [cited by applicant]
CN 107310229 · 2017 [cited by applicant]
CN 107474751 · 2017 [cited by applicant]
CN 107849407 · 2018 [cited by applicant]
CN 108182869 · 2018 [cited by applicant]
CN 108510874 · 2018 [cited by applicant]
CN 108538188 · 2018 [cited by applicant]
EP 1444143 · 2008 [cited by applicant]
EP 2256167 · 2018 [cited by applicant]
JP 2016117854 · 2016 [cited by applicant]
WO WO2010132176A2 · 2010 [cited by examiner]
WO WO2011029225A1 · 2011 [cited by examiner]
WO 2012090732 · 2012 [cited by applicant]
WO 2018157282 · 2018 [cited by applicant]
WO 2020155153 · 2020 [cited by applicant]
International Preliminary Report on Patentability dated Aug. 12, 2021 issued in corresponding IA No. PCT/CN2019/074558 filed Feb. 2, 2019. [cited by applicant]
International Search Report and Written Opinion dated Oct. 31, 2019 issued in corresponding IA No. PCT/CN2019/074558 filled Feb. 2, 2019. [cited by applicant]