AQUEOUS SYNTHETIC RESIN EMULSION FOR CEMENT MORTAR ADMIXTURE, RE-EMULSIFIABLE AQUEOUS SYNTHETIC RESIN EMULSION POWDER FOR CEMENT MORTAR ADMIXTURE, AND CEMENT MORTAR ADMIXTURE EMPLOYING THE SAME
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United States of America Patent
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Issued Date -
Aug 5, 2010
app pub date -
Jun 24, 2008
filing date -
Jul 10, 2007
priority date (Note) -
Abandoned
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Abstract
An aqueous synthetic resin emulsion comprises a synthetic resin comprising a copolymer of at least one monomer (A) selected from an acrylic monomer and a styrene monomer, and at least one functional group-containing monomer (B) selected from the group consisting of: (B1) a glycidyl-containing monomer; (B2) an allyl-containing monomer; (B3) a hydrolyzable silyl-containing monomer; (B4) an acetoacetyl-containing monomer; (B5) a monomer having at least two vinyl groups in a molecular structure thereof; and (B6) a hydroxyl-containing monomer, the synthetic resin being stably dispersed in the emulsion in the presence of a polyvinyl alcohol resin [I] having an average saponification degree of not less than 85 mol % and an average polymerization degree of 50 to 3000 and having 1 to 15 mol % 1,2-diol bonds on its side chains. The aqueous synthetic resin emulsion may be used for a cement mortar admixture, yielding a mortar excellent in fluidity and workability.
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