| 摘要 |
31,390-00 A LOW TEMPERATURE PROCESS FOR THE PREPARATION OF ISOPROPENYL-ALPHA,ALPHA-DIMETHYLBENZYL ISOCYANATE - GRAFTED LATEXES A process for the preparation of novel grafted latexes having backbones formed from unsaturated monomers and having pendent isocyanate containing sidechains derived from isopropenyl-alpha, alphadimethylbenzyl isocyanate or copolymers thereof is described. Grafting latexes is carried out using a free radical redox initiator system in an aqueous medium. Latexes such as polybutadiene, polyvinyl chloride, and polyvinyl chloride-acrylic copolymers are converted to the corresponding isocyanate-functional latexes by the process of the invention. The isocyanate-functional grafted and cografted latexes described are useful in curable compositions.
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