Modified poly (arylene ether) resin composition, method of preparing the same and molded article produced thereof

Patent metadata

Field	Value
Publication number	US-2017174884-A1
Application number	US-201615111746-A
Country	US
Kind code	A1
Filing date	Feb 17, 2016
Priority date	Jul 14, 2015
Publication date	Jun 22, 2017
Grant date	—

Abstract

Disclosed is a modified poly(arylene ether) resin composition and more specifically, are a modified poly(arylene ether) resin composition including a poly(arylene ether) resin, a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, a polyamide resin, a polyolefin resin, and an encapsulating agent, wherein the polyolefin resin is encapsulated by the encapsulating agent with the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, and a molded article produced therefrom.
The present invention has an effect of providing a modified poly(arylene ether) resin composition which has less change in physical properties caused by moisture, and has low specific gravity and superior impact strength, weatherability and balance in physical properties.

First claim

1 . A modified poly(arylene ether) resin composition comprising:
a poly(arylene ether) resin; a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof; a polyamide resin; a polyolefin resin; and an encapsulating agent, wherein the polyolefin resin is encapsulated by the encapsulating agent with the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof.

2 . The modified poly(arylene ether) resin composition according to claim 1 , further comprising:
a) a domain resin comprising a core comprising the polyolefin resin, a capsule surrounding the core and comprising the poly(arylene ether) resin and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, and a membrane formed by the encapsulating agent between the core and the capsule; and b) a matrix resin comprising the polyamide resin.

3 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the poly(arylene ether) resin is a homopolymer having a unit represented by the following Formula 1 or Formula 2, or a copolymer having a unit represented by the following Formula 1 or Formula 2:

wherein R a , R 1 , R 2 , R 3 and R 4 are substituents of an arylene group (Ar) or a phenylene group, which are each independently or simultaneously a hydrogen, chlorine, bromine, iodine, methyl, ethyl, propyl, allyl, phenyl, methylbenzyl, chloromethyl, bromomethyl, cyanoethyl, cyano, methoxy, phenoxy or nitro group, n an integer of 4 to 20, and Ar is a C7-C20 arylene group.

4 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the poly(arylene ether) resin has a weight average molecular weight of 10,000 to 100,000 g/mol.

5 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the poly(arylene ether) resin is present in an amount of 10 to 40% by weight, with respect to the modified poly(arylene ether) resin composition.

6 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof is present in an amount of 1 to 10% by weight with respect to the modified poly(arylene ether) resin composition.

7 . The modified poly(arylene ether) resin composition according to claim 1 , wherein a total content of the poly(arylene ether) resin, and the poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof is present in an amount of 20% by weight or higher, with respect to the modified poly(arylene ether) resin composition.

8 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the polyamide resin is present in an amount of 30 to 70% by weight, with respect to the modified poly(arylene ether) resin composition.

9 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the polyolefin resin is a homopolymer of olefin or a copolymer of olefin and other vinyl monomers.

10 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the polyolefin resin is present in an amount of 1 to 20% by weight, with respect to the modified poly(arylene ether) resin composition.

11 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the encapsulating agent is a styrene-based block copolymer.

12 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the encapsulating agent comprises one or more selected from the group consisting of a styrene-butadiene copolymer, a styrene-ethylene-propylene copolymer, a styrene-isoprene copolymer, an α-methylstyrene-butadiene copolymer, a styrene-butadiene-styrene copolymer, a styrene-ethylene-propylene-styrene copolymer, a styrene-ethylene-butylene-styrene copolymer, a styrene-(ethylene-butylene/styrene copolymer)-styrene copolymer, a styrene-isoprene-styrene copolymer, an α-methylstyrene-butadiene-α-methylstyrene copolymer and hydrogenated analogs thereof.

13 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the encapsulating agent is present in an amount of 1 to 20% by weight, with respect to the modified poly(arylene ether) resin composition.

14 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the modified poly(arylene ether) resin composition further comprises 0.1 to 5% by weight of an inorganic filler.

15 . The modified poly(arylene ether) resin composition according to claim 14 , wherein the inorganic filler comprises one or more selected from the group consisting of talc, wollastonite, calcium carbonate, wood flour, chalk, glass flakes and glass fibers.

16 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the modified poly(arylene ether) resin composition has a specific gravity of 1.09 or less.

17 . The modified poly(arylene ether) resin composition according to claim 1 , wherein the modified poly(arylene ether) resin composition has an impact strength exceeding 10 kgf·cm/cm 2 .

18 . A method of preparing the modified poly(arylene ether) resin composition comprising simultaneously batch-feeding, into a main feeder of a kneader, a poly(arylene ether) resin, a poly(arylene ether) resin modified with unsaturated carboxylic acid or an anhydride thereof, a polyamide resin, a polyolefin resin and an encapsulating agent.

19 . A molded article produced from the modified poly(arylene ether) resin composition according to claim 1 .

Assignees

• Lg Chemical Ltd
• Lg Chemical Ltd

Inventors

• Park Nam Jib
• Lee Sang Ho
• Ju Se Yeong
• Lee Sung Ho
• Ahn Sung Tae

Classifications

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title

• C08L71/12 Primary

  Polyphenylene oxides · CPC title

• C08L2205/035

  containing four or more polymers in a blend · CPC title

• C08L2207/53

  Core-shell polymer · CPC title

• C08L77/06 Primary

  Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence) · CPC title