Urethane elastomer with active hydrogen containing monoethylenic

Details Urethane elastomer with active hydrogen containing monoethylenic Urethane elastomer with active hydrogen containing monoethylenic

1972-11-20

1978-09-19

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

526301, 528 46, 528 49, 528 59, 528 75, C08L 7500

Patent

active

RE0297720

ABSTRACT:
A urethane elastomeric impact modifier is provided for 15 rigid thermoplastic polymers. Polyester and polyether urethane elastomers are grafted to the acrylic polymers. Preferred is a polyester, diisocyanate and glycol urethane elastomer terminated with a functional monomer capable of ethylenic polymerization grafting with the acrylic polymer. The modified polymers offer an improved balance of physical properties including higher impact strength, clarity, and weather resistance.

REFERENCES:
patent: 3297745 (1967-01-01), Fekete
patent: 3368988 (1968-02-01), Sekmakas
patent: 3509234 (1970-04-01), Burlant
patent: 3531364 (1970-09-01), Schmidle

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