Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1986-05-15
1989-01-31
Lieberman, Allan M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 80, 525 64, C08L 2512, C08L 3310, C08L 2706, C08L 5100
Patent
active
048016489
ABSTRACT:
The present invention relates to molding materials and sheets which possess improved aging and contact properties, and which comprise a plastic blend based on an acrylate-grafted vinyl chloride polymer, preferably polyvinyl chloride, having an acrylate content of 30-60% by weight, preferably 35-50% by weight, based on 100 parts by weight of vinyl chloride polymer. The molding materials and sheets further comprise another polymer or polymer blend having a glass transition temperature greater than 30.degree. C., preferably greater than 40.degree. C., which is compatible with the vinyl chloride graft polymer. If necessary, additional fillers, processing agents and other conventional additives may be included, so long as 28-44.9% by weight, preferably 30-44.8% by weight, of the vinyl chloride polymer grafted with acrylate is present and 55.1-72% by weight, preferably 55.2-70% by weight, of the other polymer or polymer blend is present.
REFERENCES:
patent: 3661994 (1972-05-01), Hwa et al.
patent: 4230832 (1980-10-01), Wei
Fink Roland
Huber-Hesselberger Josef
Mayr Maximilian
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