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US 5,344,882 AGranted
Polyacetal blends
AssigneeE. I. Du Pont de Nemours and Company
InventorEdmund A. Flexman
Life of this patent
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Abstract
Incorporation of a thermoplastic polyurethane and at least one thermoplastic crystalline polymer selected from nylon 6, nylon 612, polypropylene, and polyalkylene terephthalates containing at least one ethylene copolymer into polyacetal polymer results in blends characterized as having improved toughness, or impact strength, and improved elongation over that of a comparable blend of polyacetal and at least one of said crystalline polymers alone.
Claims14
A blend consisting essentially of
- (a) 50-80 weight percent of a polyacetal polymer,
- (b) 10-20 weight percent of a thermoplastic polyurethane, and
- (c) 10-30 weight percent of at least one thermoplastic crystalline polymer selected from the group consisting of nylon 612, nylon 6, polypropylene, and polyalkylene terephthalates containing at least one ethylene copolymer,
- wherein the above weight percents are based upon the total of components (a), (b), and (c) only.
1 more element
Dependencies are inferred from the claim text.