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US 4,734,331 AGranted
Multilayer structure having at least one polycarbonate layer
AssigneeGeneral Electric Company
InventorsHarold F. Giles, Jr., Robert P. Hirt, Jr.
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Abstract
A multilayer composition comprising at least one polycarbonate layer, at least one polyolefin layer, and at least one olefin vinyl alcohol layer, said layers being adhered together by means of tie layers containing a tie material selected from modified polyolefin graft copolymers and olefin vinyl ester copolymers.
Claims36
A multilayer structure comprising:
- (i) at least one polycarbonate layer;
- (ii) at least one olefin vinyl alcohol layer;
- and
- (iii) at least one unmodified polyolefin layer;
- said layers being adhered together by means of tie layers disposed therebetween said tie layers being comprised of an olefin vinyl ester copolymer.
2 more elements
A multilayer structure comprising:
- (i) at least one polycarbonate layer;
- (ii) at least one olefin vinyl alcohol layer;
- and
- (iii) at least one unmodified polyolefin layer;
- said layers being adhered together by means of ties layers disposed therebetween, said tie layers consisting essentially of a modified polyolefin copolymer.
2 more elements
A multilayer laminar structure consisting essentially of:
- (i) at least one polycarbonate layer;
- (ii) at least one olefin vinyl alcohol layer;
- and
- (iii) at least one unmodified polyolefiin layer;
- said layers being adhered together by means of tie layers disposed therebetween.
2 more elements
Dependencies are inferred from the claim text.