IP Library › Granted Patent US 8,829,130
Granted Patent B2
US 8,829,130 · App. 13/808,039 · Granted Sep 9, 2014

Resin composition and molded article

Inventors: Xuming Xie (Beijing, CN); Haruhisa Masuda (Settsu, JP)
Assignees: Tsinghua University; Daikin Industries, Ltd.
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Quick Facts
Patent No.
US 8,829,130
App. No.
13/808,039
Granted
Sep 9, 2014
Kind
B2
Abstract

A resin composition including an aromatic polyether ketone resin (I), and a fluororesin (II), the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (I): CF 2 ═CF—R f 1   (1) wherein R f 1 represents —CF 3 or—OR f 2 , and R f 2 represents a C1 to C5 perfluoroalkyl group; the composition containing the aromatic polyether ketone resin (I) and the fluororesin (II) at a mass ratio (I):(II) of 95:5 to 50:50; the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I) and having an average dispersed particle size of 3.0 μm or smaller.

Claims (15)

1. A molded article comprising a resin composition, said resin composition comprising

an aromatic polyether ketone resin (I), and

a fluororesin (II),

the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (I):

CF 2 ═CF—R f 1   (1)

wherein R f 1 represents —CF 3 or —OR f 2 , and R f 2 represents a C1 to C5 perfluoroalkyl group;

the composition comprising the aromatic polyether ketone resin (I) and the fluororesin (II) at a mass ratio (I):(II) of 95:5 to 50:50;

the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I) and having an average dispersed particle size of 2.0 μm or smaller, and said molded article having a limiting PV value of 800 kPa·m/s or higher.

2. The molded article according to claim 1 ,

wherein the fluororesin (II) has an average dispersed particle size of 0.30 μm or smaller.

3. The molded article according to claim 1 , wherein the fluororesin (II) has a melt flow rate of 0.1 to 100 g/10 min.

4. The molded article according to claim 1 , wherein the aromatic polyether ketone resin (I) is a polyether ether ketone.

5. The molded article according to claim 1 , for use as a sliding member.

6. The molded article according to claim 1 , which is a sealant, gear, actuator, piston, bearing, or bushing.

7. The molded article according to claim 1 , having a limiting PV value of 1300 kPa·m/s or higher.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2013
From: XIE, XUMING; MASUDA, HARUHISA
To: TSINGHUA UNIVERSITY; DAIKIN INDUSTRIES, LTD.
Reel/Frame 029564/0954 →
Priority Claims (1)
CN 2010 1 0218794 · Jul 5, 2010 · national
Continuity (1)
Related Publication 20130109810A1 · May 2, 2013