IP Library › Granted Patent US 12,735,579
Granted Patent B2
US 12,735,579 · App. 18/191,484 · Granted Sep 15, 2026

Powder composition, coating film, and three-dimensional shaped article

Inventors: Koji Nakanishi (Osaka, JP); Toyomitsu Seki (Osaka, JP); Takuma Maruhashi (Osaka, JP); Noriko Imada (Osaka, JP); Hideki Kono (Osaka, JP)
Assignee: DAIKIN INDUSTRIES, LTD.
C09D5/031B33Y70/00C08K7/02C08L27/12C09D5/03C09D5/033C09D7/70C09D127/12C09D127/18C09D171/10C09D171/12C08G2650/40C08L71/10Y02P10/25
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Quick Facts
Patent No.
US 12,735,579
App. No.
18/191,484
Granted
Sep 15, 2026
Kind
B2
Abstract

A powder composition containing an aromatic polyetherketone resin (I) and a fluorine-containing copolymer (II). The powder composition has a ratio r2/r1 of 1.60 or lower, wherein r1 represents an average dispersed particle size of the fluorine-containing copolymer (II) and r2 represents an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g with 5-minute pre-heating in conformity with ASTM D1238.

Claims (15)

1 . A powder composition comprising:

an aromatic polyether ketone resin (I); and

a fluorine-containing copolymer (II),

wherein the powder composition has a ratio r2/r1 of 1.60 or lower, wherein r1 represents an average dispersed particle size of the fluorine-containing copolymer (II) and r2 represents an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g with 5-minute pre-heating in conformity with ASTM D1238.

2 . The powder composition according to claim 1 ,

wherein the aromatic polyether ketone resin (I) and the fluorine-containing copolymer (II) have a ratio by mass (I):(II) of 99:1 to 30:70.

3 . The powder composition according to claim 1 ,

wherein the aromatic polyether ketone resin (I) has a melting point of 300° C. to 380° C.

4 . The powder composition according to claim 1 ,

wherein the aromatic polyether ketone resin (I) has a glass transition temperature of 130° C. to 220° C.

5 . The powder composition according to claim 1 ,

wherein the fluorine-containing copolymer (II) has a melting point of 200° C. to 323° C.

6 . The powder composition according to claim 1 , further comprising an additive.

7 . The powder composition according to claim 6 ,

wherein the additive comprises a fibrous filler (III).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2023
From: NAKANISHI, KOJI; SEKI, TOYOMITSU; MARUHASHI, TAKUMA; IMADA, NORIKO; KONO, HIDEKI
To: DAIKIN INDUSTRIES, LTD.
Reel/Frame 063215/0563 →
Priority Claims (1)
JP 2020-165522 · Sep 30, 2020 · national
Continuity (2)
Continuation PCTJP2021035153 · Sep 24, 2021
Related Publication 20230235182A1 · Jul 27, 2023
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