Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1992-10-20
1993-08-03
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
528 45, C08G 1880, C08G 1881
Patent
active
052330036
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.
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Lucas Howard R.
Wu Kuang-Jong
American Cyanamid Company
Kelly M. J.
Lerman B. E.
Van Riet F. M.
Welsh Maurice J.
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