Methods for preparing graft polymers and resin compositions
Abstract
Abstract WHEN FROM 25 TO 70% BY WEIGHT OF A PREPOLYMER HAVING A VISCOSITY OF FROM 1 TO 100 CPS. AT 60*C. AND OBTAINED BY PARTIALLY POLYMERIZING A MIXTURE CONTAINING AS ITS MAIN COMPONENTS STYRENE MONOMER AND AT LEAST ONE OF THE MONOMERS SELECTED FROM THE GROUP CONSISTING OF METHYL METHACRYLATE AND ACRYLONITRILE, ARE ADDED TO FROM 75 TO 30% BY WEIGHT OF AN AQUEOUS EMULSION OF DIENE RUBBER POLYMER MAINLY COMPOSED OF CONJUGATED DIENE HYDROCARBON, AND THE MIXTURE THUS PREPARED IS SUBJECTED TO GRAFT-POLYMERIZATION, AN EASILY PROCESSABLE GRAFT POLYMER COMPOSITION SUPERIOR IN IMPACT STRENGTH AND TRANSPARENCY IS OBTAINED. FROM 5 TO 30 PARTS BY WEIGHT OF SAID GRAFT POLYMER COMPOSITION MIXED WITH FROM 95 TO 70 PARTS BY WEIGHT OF VINYL CHLORIDE RESIN WILL GIVE A VINYL CHLORIDE RESIN COMPOSITION SUPERIOR IN IMPACT STRENGTH.
Inventors
- 👤 S Koyanagi
- 👤 H Kitamura
- 👤 S Sonegawa
Bibliographic Details
Claims Analysis
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