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. 03, 1993
Filed:
Oct. 20, 1992
Howard R Lucas, Danbury, CT (US);
Kuang-Jong Wu, Shelton, CT (US);
American Cyanamid Company, Stamford, CT (US);
Abstract
An improved process for preparing a one component self-crosslinking resin is provided. The process for making the self-crosslinking resin is carried out by copolymerizing an oxime-blocked m-isopropenyl-alpha, alpha-dimethylbenzyl isocyanate (m-TMI), hydroxyethyl acrylate, and another unsaturated monomer at 75.degree. C. to 85.degree. C. in a polar organic solvent having a dipole moment of at least 3, such as acetonitrile. The polar solvent retards the thermal deblocking of the blocked TMI, thereby preventing the premature self-crosslinking and gelation of the copolymerization product prior to its use as a self-crosslinking resin.