Modified polyphenylene ether resins having improved processabili

Details Modified polyphenylene ether resins having improved processabili Modified polyphenylene ether resins having improved processabili

1990-11-28

1993-05-25

Ziegler, Jacob

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

Synthetic resins

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

525391, 525392, 525905, C08F28308, C08L 7112

Patent

active

052141098

ABSTRACT:
The processability and resistance to oxidative degradation of polyphenylene ether resins, alone, or in combination with a styrene resin, is improved by including a modifier comprising an alpha, beta-unsaturated carboxylic acid or derivative. In an embodiment, the formation of a composition comprising a poly(2,6-dimethyl-1,4-phenylene ether) and 2 parts per hundred of dibutyl maleate results in a 26 percent improvement in spiral flow, and a 30 percent reduction in oxygen uptake at 115.degree. C. enhancing the utility of polyphenylene ether resins as extrusion and injection molding materials.

REFERENCES:
patent: 3379792 (1968-04-01), Finholt
patent: 3383435 (1968-05-01), Cizek
patent: 3639334 (1972-01-01), Holoch
patent: 3660531 (1972-05-01), Lauchlan et al.
patent: 4530952 (1985-07-01), Tayama et al.
patent: 4563500 (1986-01-01), Haaf et al.
patent: 4654405 (1987-03-01), Jalbert
patent: 4684669 (1987-08-01), Wroczynski

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