Title:
POLYVINYLBUTYRAL INTERLAYER SHEET WITH IMPROVED ADHESION TO GLASS AND A PROCESS FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO2004011538
Kind Code:
A3
Abstract:
The present invention is an improved PVB composition comprising an adhesion control agent which is a mixture of potassium and magnesium salts in a ratio of from about 0.05:1 to about 5:1, by weight, potassium salts to magnesium salts. The present invention also describes a method for improved control of adhesion of PVB to glass.
Inventors:
SMITH REBECCA L (US)
RYMER DONALD L (US)
HARPER ROBERT M (US)
MCKIERNAN DAN J (US)
RYMER DONALD L (US)
HARPER ROBERT M (US)
MCKIERNAN DAN J (US)
Application Number:
PCT/US2003/023817
Publication Date:
March 17, 2005
Filing Date:
July 29, 2003
Export Citation:
Assignee:
DU PONT (US)
SMITH REBECCA L (US)
RYMER DONALD L (US)
HARPER ROBERT M (US)
MCKIERNAN DAN J (US)
SMITH REBECCA L (US)
RYMER DONALD L (US)
HARPER ROBERT M (US)
MCKIERNAN DAN J (US)
International Classes:
B32B17/10; C08J3/00; C08K5/098; C08L29/14; (IPC1-7): C08K5/098; C08L29/14; B32B17/10
Foreign References:
| EP1036775A1 | 2000-09-20 | |||
| US5427861A | 1995-06-27 | |||
| US4292372A | 1981-09-29 |
Other References:
See also references of EP 1529074A2
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