Control of surface gloss by variation of hips rubber swell index

Details Control of surface gloss by variation of hips rubber swell index Control of surface gloss by variation of hips rubber swell index

1986-01-10

1990-07-31

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...

525905, C08L 712

Patent

active

049451316

ABSTRACT:
The surface gloss and flexural modulus of articles molded from blends of a polyphenylene ether resin and a rubber modified, high impact polystyrene (HIPS) are regulated by controlling the swell index of the HIPS rubber within the range of 8 to 20. Duller surface finishes and higher flexural moduli are achieved with use of higher swell indices, while glossier surfaces and lower flexural moduli are obtained with lower swell indices within this range.

REFERENCES:
patent: 4371663 (1983-02-01), Russell
patent: 4448931 (1984-05-01), Sugio et al.

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