Resin composition and molded article

Patent metadata

Field	Value
Publication number	US-9605144-B2
Application number	US-201414341588-A
Country	US
Kind code	B2
Filing date	Jul 25, 2014
Priority date	Jul 5, 2010
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

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 (1):

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.

First claim

The invention claimed is:

1. A 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 (1):
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 1.90 μm or smaller,
wherein the fluororesin (II) has a melt flow rate of 0.1 to 100 g/10 min,
wherein the fluororesin (II) comprises 90 to 99 mol % of tetrafluoroethylene and 1 to 10 mol % of the perfluoroethylenic unsaturated compound represented by formula (1), and
a molded article obtained from the resin composition has a limiting PV value of 800·kPa m/s or higher.

2. The resin composition according to claim 1 ,
wherein the fluororesin (II) has an average dispersed particle size of 0.30 μm or smaller.

3. The resin composition according to claim 1 ,
wherein the aromatic polyether ketone resin (I) is a polyether ether ketone.

4. The resin composition according to claim 1 , wherein a molded article obtained from the resin composition has a limiting PV value of 1000·kPa m/s or higher.

5. The resin composition according to claim 1 , which comprises the aromatic polyether ketone resin (I) and the fluororesin (II) at a mass ratio (I):(II) of 90:10 to 50:50.

6. The resin composition according to claim 1 , wherein the fluororesin (II) has an average dispersed particle size of 1.0 μm or smaller.

Assignees

• Univ Tsinghua
• Daikin Ind Ltd

Inventors

• Xie Xuming
• Masuda Haruhisa

Classifications

• C08L71/10 Primary

  from phenols · CPC title

• C08L27/18 Primary

  Homopolymers or copolymers or tetrafluoroethene · CPC title

• C08L61/16 Primary

  of ketones with phenols · CPC title

• C08G2650/40

  containing ketone groups, e.g. polyarylethylketones, PEEK or PEK · CPC title

• C08L71/00

  Compositions of polyethers obtained by reactions forming an ether link in the main chain (of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06); Compositions of derivatives of such polymers · CPC title