Blends of polyvinyl chloride with homopolymers and copolymers of alkyl beta-vinylpropionate

Polymers of vinyl chloride containing more than 50% by weight of polymerized vinyl chloride are plasticized with a polymer of an alkyl b -vinylpropionate. The plasticizer may be a homopolymer or copolymer of a b -vinyl-propionate with ethylene, ethyl acrylate, diethyl fumarate, dibutyl fumarate or d...

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Bibliographische Detailangaben
1. Verfasser:	MASTERSON JAMES E
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Zusammenfassung:	Polymers of vinyl chloride containing more than 50% by weight of polymerized vinyl chloride are plasticized with a polymer of an alkyl b -vinylpropionate. The plasticizer may be a homopolymer or copolymer of a b -vinyl-propionate with ethylene, ethyl acrylate, diethyl fumarate, dibutyl fumarate or diethyl maleate. In examples ethyl b -vinylpropionate is polymerized in the presence of (1) t.-butyl peracetate and (2) diisobutylene ozonide, and copolymerized with (3) ethyl acrylate in the presence of t.-butyl peracetate and (4) ethylene in the presence of di-t.-butyl peroxide in hexane. The resulting polymers are compounded with polyvinyl chloride in comparison with conventional polyester and dioctyl phthalate plasticizers. The compositions have good electrical properties.