Graft copolymers of alkyl methacrylates--alkyl acrylates onto di

Details Graft copolymers of alkyl methacrylates--alkyl acrylates onto di Graft copolymers of alkyl methacrylates--alkyl acrylates onto di

1984-06-22

1985-09-17

Pertilla, Theodore E.

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

Synthetic resins

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

525 64, 525 66, 525 67, 525 69, 525 75, 525 77, 525 78, 525 80, 525 81, 525 82, C08L 5100

Patent

active

045421854

ABSTRACT:
The impact resistance of resin compositions consisting of a thermoplastic polymer, particularly a homopolymer or copolymer of vinyl chloride can be improved by an impact additive of the graft copolymer type. The graft copolymer impact additive consists of a backbone composed of a statistical copolymer of butadiene or isoprene, an alkyl acrylate of a C.sub.2 to C.sub.12 alkyl, and optionally a polyfunctional cross-linking agent, onto which are grafted the chains of a statistical copolymer of an alkyl methacrylate of a C.sub.1 to C.sub.4 alkyl, particularly methyl methacrylate, and an alkyl acrylate of a C.sub.1 to C.sub.8 alkyl, particularly ethyl acrylate. The backbone of the graft copolymer impact additive comprises 0.5-35% by weight butadiene or isoprene, and up to 10 mole % of the cross-linking agent, while the graft chains of the graft copolymer comprise 5 to 50 mole % of the alkyl acrylate of a C.sub.1 to C.sub.8 alkyl, and the weight ratio between the grafted chains and the backbone can range from 10 to 200%.
The resin compositions are particularly useful to improve impact strength at low temperatures.

REFERENCES:
patent: 3041309 (1962-06-01), Baer
patent: 3264373 (1966-08-01), Whitworth et al.
patent: 3264375 (1966-08-01), Jones
patent: 3655825 (1972-04-01), Souder et al.
patent: 3678133 (1972-07-01), Ryan
patent: 3749755 (1973-07-01), Bronstert et al.
patent: 3787522 (1974-01-01), Dickie et al.
patent: 3842144 (1974-11-01), Tanaka et al.
patent: 3886235 (1975-05-01), Tanaka et al.
patent: 3922321 (1975-11-01), Yusa et al.
patent: 3959408 (1976-05-01), Yusa et al.
patent: 3985703 (1976-10-01), Ferry et al.
patent: 4014842 (1977-03-01), Kosugi et al.
patent: 4078018 (1978-03-01), Chauvel et al.
patent: 4173596 (1979-11-01), DeWitt et al.
patent: 4173598 (1979-11-01), Castelazo et al.
patent: 4229549 (1980-10-01), Usami et al.
patent: 4362845 (1982-12-01), Kamata et al.
patent: 4376843 (1983-03-01), Linder et al.
patent: 4443585 (1984-04-01), Goldman
6001 Chemical Abstracts, vol. 94, Jun. 1981, No. 11, Columbus, Ohio, U.S.A. 94:176054a.

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