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:
Mar. 04, 2003
Filed:
Jun. 25, 2001
Applicant:
Inventors:
Scott B. Charles, Hudson, WI (US);
Robert J. Kinney, Woodbury, MN (US);
Michael A. Kropp, Cottage Grove, MN (US);
Roger A. Mader, Stillwater, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/738 ; C09J 0/500 ; C08L 6/300 ; C08F / ;
U.S. Cl.
CPC ...
B32B 2/738 ; C09J 0/500 ; C08L 6/300 ; C08F / ;
Abstract
The invention provides adhesives and adhesive compositions that comprise epoxy resin and non-volatile anhydride. One embodiment further comprises a hydroxyl containing compound that is insoluble in the epoxy resin/anhydride blend at mixing temperatures which reacts with the anhydride at solder reflow temperatures to form a fluxing agent in-situ. Another embodiment further comprises catalyst.