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US 5,130,370 AGranted
Molding compositions of polyvinylbutyral blend
AssigneeMonsanto Company
InventorsKishore Udipi, Lionel R. Stebbins
Life of this patent
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Abstract
A melt blended thermoplastic molding composition consisting essentially of, on a weight basis: (A) 40 to 70 parts plasticized polyvinyl butyral; (B) 60 to 30 parts poly(methylmethacrylate); (C) 0 to 15 parts filler; (D) 0 to 30 parts elastomeric graft polymer; and 0 to 30 parts thermoplastic polyurethane; provided that at least 10 parts of (D) or (E) or mixtures of (D) and (E) is present; and the sum of (A)+(B)+(C)+(D)+(E) is always 100.
Claims6
A melt blended thermoplastic molding composition consisting essentially of, on a weight basis:
- (A) 40 to 70 parts plasticized polyvinyl butyral;
- (B) 60 to 30 parts poly(methylmethacrylate);
- (C) 0 to 15 parts filler;
- (D) 0 to 30 parts elastomeric graft polymer;
- and
- (E) 0 to 30 parts of thermoplastic polyurethane;
- provided that at least 10 parts of (D) or (E) or mixtures of (D) and (E) are present;
- and
- the sum of (A)+(B)+(C)+(D)+(E) is always 100.
6 more elements
Dependencies are inferred from the claim text.