Composite polymeric materials
Abstract
Abstract COMPOSITE, MACRO-GRANULAR POLYMERIC MATERIALS ARE DISCLOSED IN WHICH THE INDIVIDUAL PARTICLES CONSIST OF A CONTINUOUS MATRIX OF A VINYL CHLORIDE RESIN IN WHICH IS UNIFORMLY DISPERSED LATEX-DERIVED PARTICLES OF A RUBBERY, ESSENTIALLY COMPLETELY GELLED POLYMER OF AN ALKYL ACRYLATE. SUCH MATERIALS ARE PREPARED BY POLYMERIZATION IN AQUEOUS SUSPENSION OF A MONOMERIC MATERIAL CONTAINING VINYL CHLORIDE STARTING IN THE PRESINCE OF A SLURRY OF CRUMBS OR A LATEX OF THE ACRYLATE POLYMER YIELDING DIRECTLY AN AQUEOUS SLURRY OF THE GRANULAR PRODUCT. THE PRODUCTS ARE USEFUL AS RIGID STRUCTURAL RESINS AND ALSO AS IMPACT-IMPROVERS AND PROCESSING AIDS IN RIGID BLENDS WITH OTHER VINYL CHLORIDE RESINS AND AFTER-CHLORINATED POLYVINYL CHLORIDES.
Inventors
- 👤 Elmer J De Witt
- 👤 Eugene J Sehm
Bibliographic Details
Claims Analysis
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