Capping of polyphenylene ethers by reaction with 5-hydroxytrimel

Details Capping of polyphenylene ethers by reaction with 5-hydroxytrimel Capping of polyphenylene ethers by reaction with 5-hydroxytrimel

1990-02-05

1990-12-25

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528214, C08G 6548

Patent

active

049804243

ABSTRACT:
Polyphenylene ethers are capped by reaction in the melt with at least one derivative of 3-hydroxytrimellitic acid, preferably the 5-hydroxy or 5-acetoxy derivative of trimellitic anhydride or of a monoester thereof. The capped polyphenylene ether is capable of forming copolymers with polyamides.

REFERENCES:
patent: 4600741 (1986-07-01), Aycock et al.
patent: 4642358 (1987-02-01), Aycock et al.
patent: 4760118 (1988-07-01), White et al.
patent: 4808671 (1989-02-01), Sivavec

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