The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2003
Filed:
Apr. 30, 2001
Applicant:
Inventors:
Peter W. Merz, Wollerau, CH;
Shingo Tsuno, Zürich, CH;
Assignee:
Sika Schweiz AG, Zurich, CH;
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
Abstract
New primers for the improvement of the adhesion of cross-linking adhesive systems top polyolefinic thermoplastic materials such as e.g., polypropylene, polyethylene or EPDM are disclosed. Said primers, on the one hand are characterized by a simple method of production and good storage stability, on the other hand by good wetting and good homogeneous film forming characteristics, said film forming characteristics enabling a uniform thickness of the layer, leading to good adhesion qualities. Essential constituents of such primers are prepolymers based on hydrogenated polyisoprene diol.