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.:

US 7820768 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 26, 2010

Filed:

Jul. 28, 2005
Applicants:

Guenter Stevens, Kempen, DE;

Heinz Herlinger, Seckach, DE;

Inventors:

Guenter Stevens, Kempen, DE;

Heinz Herlinger, Seckach, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/60 (2006.01); C08G 69/48 (2006.01); C08F 283/04 (2006.01); C08L 77/00 (2006.01); C08L 79/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Process for the preparation of polyamidoimide resins, in which the centers of the polyamidoimide resins which are reactive toward moisture are reacted with one or more compounds of the following general H—X—R, in which, where X=oxygen, Ris a straight-chain or branched alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or an aralkyl group and, where X═NR, Ris a straight-chain or branched alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or an aralkyl group or an aryl group and Ris a straight-chain or branched alkyl group having 1 to 6 carbon atoms, an aralkyl group or an aryl group, or Rand Rtogether form a cycloalkyl radical having 4 or 5 methylene groups, it being possible for a methylene group to be replaced by oxygen or an NRgroup, and Rbeing a straight-chain or branched alkyl group having 1 to 3 carbon atoms, and polyamidoimide coating materials which are prepared by the process.


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