Process for preparing improved 2,3-dichloro-1,3-butadiene adhesives
Abstract
Abstract THE PROCESS DESCRIBED HEREIN COMPRISES AN IMPROVED METHOD FOR PREPARING COPOLYMERS OF 2,3-DICHLORO-1,3BUTADIENE AND ACRYLONITRILE TO PRODUCE ADHESIVE COMPOSITIONS OF IMPROVED SOLUBILITY SUCH THAT THE COMPOSITION DOES NOT NEED TO BE HEATED PRIOR TO APPLICATION AS IS THE CASE IN PRESENTLY KNOWN COPOLYMERS OF THIS TYPE. THE PROCESS USED HEREIN PRODUCES A PRODUCT OF IMPROVED SOLUBILITY BY VIRTUE OF THE FACT THAT THE COPOLYMER IS PREPARED BY CONTINUOUS OR INCREMENTAL ADDITION OF THE DICHLOROBUTADIENE MONOMER AS THE POLYMERIZATION PROCEEDS. IN THIS WAY THE COPOLYMERS PRODUCED TOWARD THE END OF THE COPOLYMERIZATION PERIOD CLOSELY RESEMBLE IN MOLECULAR WEIGHT, MONOMER DISTRIBUTION AND VARIOUS OTHER PROPERTIES THE COPOLYMERS PRODUCED AT THE BEGINNING OF THE COPOLYMERIZATION. CONSEQUENTLY THE RESULTING COPOLYMER IS HOMOGENEOUS, HAS IMPROVED SOLUBILITY, CAN BE APPLIED "COLD," THAT IS WITHOUT PRIOR HEATING, AND HAS EXCELLENT ADHESIVE PROPERTIES.
Inventors
- 👤 Wendell R Conard
Bibliographic Details
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