Polyesters modified with polyorganosiloxane/polyvinyl-based graf

Details Polyesters modified with polyorganosiloxane/polyvinyl-based graf Polyesters modified with polyorganosiloxane/polyvinyl-based graf

1988-11-14

1990-11-06

Marquis, Melvin I.

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

Synthetic resins

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

524267, 524262, 524403, 524439, 524440, 524425, 524437, 524449, 524451, 524404, 524401, C08L 5108

Patent

active

049687468

ABSTRACT:
Thermoplastic molding compositions are provided which comprise a polyester resin alone or in combination with a poly(etherester) elastomer, a poly(etherimide ester) elastomer, or a mixture of the foregoing modified with a multi-stage polyorganosiloxane/polyvinyl-based graft polymer which exhibit materially enhanced impact strength, particularly at low temperatures, while maintaining other desirable properties without showing any tendency to delaminate. Particularly noteworthy are reductions in surface gloss and the substantially complete elimination of mottling.

REFERENCES:
patent: 3220972 (1965-11-01), Lamoreaux
patent: 3775452 (1973-11-01), Karstedt
patent: 4556705 (1985-12-01), McCready
patent: 4806593 (1989-02-01), Kress et al.
patent: 4812515 (1989-03-01), Kress et al.

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