Coextruded laminate
A laminate having improved adhesion between sheets comprises at least one sheet of a first sheet composed of a high monoalkenyl arene content polymer and at least one sheet of a second sheet composed of block copolymers of monoalkenyl arenes and conjugated dienes, said block copolymer containing about 0.1 to about 10 percent by weight of a fatty acid amide, said first and second sheets being formed by coextrusion. In a preferred embodiment, the high monoalkenyl arene content polymer is polystyrene, the block copolymer is a styrene-butadiene copolymer, and the fatty acid amide is ethylene bis stearylamide.
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Description
Patent History
Patent number: T962011
Type: Grant
Filed: Apr 25, 1977
Date of Patent: Sep 6, 1977
Assignee: Shell Oil Company
Inventor: Roland O. Muehlner (Houston, TX)
Application Number: 5/790,529
Type: Grant
Filed: Apr 25, 1977
Date of Patent: Sep 6, 1977
Assignee: Shell Oil Company
Inventor: Roland O. Muehlner (Houston, TX)
Application Number: 5/790,529
Classifications
Current U.S. Class:
Next To Polyene Polymer (428/517);
Ester, Halide Or Nitrile Of Addition Polymer (428/520)
International Classification: B32B 2708;
International Classification: B32B 2708;
