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US 4,863,983 AGranted
Extrudable thermoplastic hydrocarbon polymer composition
AssigneeMinnesota Mining and Manufacturing Company
InventorsBryce V. Johnson, Joyce M. Kunde
Life of this patent
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Abstract
An extrudable composition comprising hydrocarbon polymer, organophosphite or organophosphate compound and fluorocarbon polymer. The organophosphite or organophosphate and the fluorocarbon polymer are present in the composition in such relative proportions and concentrations as to reduce the occurrence of melt defects during the extrusion of said thermoplastic hydrocarbon polymer.
Claims10
An extrudable composition comprising
- (A) thermoplastic olefin polymer, as the major or predominant component of the composition,
- (B) organophosphite, organophosphate, or blends thereof, and
- (C) fluorocarbon polymer where the weight ratio of said fluorocarbon polymer to said organophosphite, organophosphate, or blend thereof is in the range of 1/1 to 1/5, the concentration of said fluorocarbon polymer is 0.005 to 0.1 weight percent, and the concentration of said organophosphite, organophosphate, or blend thereof is 0.01 to 0.2 weight percent based on the total composition weight.
Dependencies are inferred from the claim text.