Coagulation of polymers using sulfurous acid

Coagulation of polymers using sulfurous acid

Methods for coagulating a graft polymer latex comprise contacting the latex with sulfurous acid. The methods are particularly suitable for ABS resins and provide products having improved thermal oxidative stability and color stability. When coagulation is effected in the presence of a radical initia...

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Hauptverfasser: WOZNY, JOHN C
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Sprache:eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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JOHN C
description Methods for coagulating a graft polymer latex comprise contacting the latex with sulfurous acid. The methods are particularly suitable for ABS resins and provide products having improved thermal oxidative stability and color stability. When coagulation is effected in the presence of a radical initiator, the residual grafting monomer concentration in the resin product is reduced.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Coagulation of polymers using sulfurous acid
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