Polymer latex with improved mechanical properties and process for preparing said polymer latex
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United States of America Patent
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Dec 20, 2016
Grant Date -
Oct 16, 2014
app pub date -
Aug 23, 2012
filing date -
Sep 7, 2011
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Abstract
The present invention relates to a process for preparing a polymer latex that includes polymerizing one or more ethylenically unsaturated aromatic monomers and one or more conjugated diene monomers in the presence of a hydroperoxide chain transfer agent and sulfur-containing chain transfer agent, wherein the sulfur-containing chain transfer agent is added after the hydroperoxide chain transfer agent. It further relates to the polymer latex thus obtained, to a composition comprising the polymer latex and to the use of the polymer latex or polymer latex composition in a carpet backing, paper coating, or fiber fabric pre-impregnation process.
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