MULTILAYER ARTICLES COMPRISING POLYCARBONATE AND POLYPROPYLENE AND METHOD FOR THEIR PREPARATION

Title:

MULTILAYER ARTICLES COMPRISING POLYCARBONATE AND POLYPROPYLENE AND METHOD FOR THEIR PREPARATION

Document Type and Number:

WIPO Patent Application WO2005037545

Kind Code:

A3

Abstract:

Disclosed are multilayer articles comprising (i) at least one polycarbonate layer, wherein the polycarbonate comprises structural units derived from at least one dihydroxy aromatic hydrocarbon; (ii) at least one polypropylene layer; and (iii) a tielayer between the polycarbonate layer and the polypropylene layer, wherein the tielayer comprises a copolymer with structural units derived from at least one alkenyl aromatic compound and at least one conjugated diene. Also disclosed are film pre-assemblies comprising a tielayer and either a polycarbonate or a polypropylene layer. Methods to make articles and pre-assemblies are also disclosed.

Inventors:

WANG HUA (US)
TRYSON GLEN ROBERT (US)

Application Number:

PCT/US2004/032495

Publication Date:

July 07, 2005

Filing Date:

September 30, 2004

Export Citation:

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Assignee:

GEN ELECTRIC (US)
WANG HUA (US)
TRYSON GLEN ROBERT (US)

International Classes:

B32B7/12; B32B27/32; B32B27/36; C09J153/02; (IPC1-7): B32B7/12; C09J153/02

Domestic Patent References:

WO2004085102A2	2004-10-07
WO2000061664A1	2000-10-19

Foreign References:

US20040142176A1	2004-07-22
EP0203425A1	1986-12-03
EP0857758A1	1998-08-12
EP1316419A2	2003-06-04

Other References: