Thermoplastic elastomer blends of a polyvinyl chloride-acrylate

Details Thermoplastic elastomer blends of a polyvinyl chloride-acrylate Thermoplastic elastomer blends of a polyvinyl chloride-acrylate

1988-09-09

1990-06-26

Ziegler, Jacob

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

Synthetic resins

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

525212, 525213, 525217, 525219, C08L 3314, C08L 3318, C08L 3506

Patent

active

049372912

ABSTRACT:
Thermoplastic elastomer blends containing polyvinyl chloride having improved oil resistance and low compression set are made by blending a crosslinked nitrile rubber with a polyvinyl chloride-acrylate copolymer. The amount of nitrile rubber can vary over a wide range as from about 1 part to about 400 parts by weight for every 100 parts by weight of the polyvinyl chloride-acrylate copolymer. The polyvinyl chloride-acrylate copolymer has an inherent viscosity of from about 0.3 to about 4.0 and is made from a vinyl chloride monomer with an optional vinyl component comonomer and one or more acrylate monomers having the formula ##STR1## wherein R.sup.1 is an aliphatic, an aromatic, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof, or hydrogen, and R.sup.2 is an aliphatic, an aromatic, an alkyl hydroxyl, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof; or a hydrocarbyl ether such as an akloxyalkyl, a phenoxyaryl, a henoxyalkyl, or combinations thereof, having from 2 to 1,000 carbon atoms, or a substituted halogen, oxygen, sulfur, or nitrogen derivative thereof.

REFERENCES:
patent: 2653884 (1953-09-01), Hussey et al.
patent: 3595819 (1971-07-01), Dahli et al.
patent: 4657976 (1987-04-01), Ott et al.

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