Vinyl chloride resin composition with multi-stage impact modifie

Details Vinyl chloride resin composition with multi-stage impact modifie Vinyl chloride resin composition with multi-stage impact modifie

1981-10-20

1982-10-05

Seccuro, Carman J.

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

Synthetic resins

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

525 79, 525 81, 525 82, 525 84, 525310, 525902, C08L 5104, C08L 2706

Patent

active

043529100

ABSTRACT:
As an impact modifier copolymer to be blended with a vinyl chloride resin, a multilayer copolymer comprising a hard core polymer containing a relatively small quantity of a conjugated diene, a rubbery inner layer polymer containing a relatively large quantity of a conjugated diene, and an outer layer polymer comprising, for example, a copolymer of styrene and methyl methacrylate which is compatible with a vinyl chloride resin is used, whereby a vinyl chloride resin composition well balanced between impact strength and anti-stress-whitening property can be obtained.

REFERENCES:
patent: 3644250 (1972-02-01), Ide et al.
patent: 3886232 (1975-05-01), Tanaka et al.
patent: 3899547 (1975-08-01), Amagi et al.
patent: 3959895 (1976-06-01), Lonning

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