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:
Jan. 08, 2002
Filed:
Oct. 14, 1999
Applicant:
Inventors:
Fokeltje A. Koldijk, Zwolle, NL;
Eimbert G. Belder, Zwolle, NL;
Coenraad M. Gehrels, Zwolle, NL;
Tosko A. Misev, Zwolle, NL;
Assignee:
DSM N.V., Heerlen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/736 ; C08G 6/300 ; C08G 6/302 ; C08G 6/312 ; C08G 6/316 ;
U.S. Cl.
CPC ...
B32B 2/736 ; C08G 6/300 ; C08G 6/302 ; C08G 6/312 ; C08G 6/316 ;
Abstract
The invention relates to a powder paint composition comprising a polymer that contains endomethylene tetrahydrophthalic acid units and a crosslinker. The polymer is obtained by preparing an unsaturated polymer in a first step, which then reacts with cyclopentadiene at a temperature between 160 ° C and 220 ° C in a second step. The polymer preferably contains more than 10 wt.% endomethylene tetrahydrophthalic acid units and is preferably an unsaturated polymer.