Process for the production of cement-synthetic polymer composite molded bodies
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United States of America Patent
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Sep 1, 1992
Grant Date -
N/A
app pub date -
Sep 27, 1991
filing date -
Mar 29, 1990
priority date (Note) -
Expired
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Abstract
A composite, molded article is prepared by forming a W/O emulsion containing a vinyl monomer, water, a cement, a polymerization initiator and an emulsifier, followed by molding and hardening. The emulsifier includes a neutralization product of an amide-containing amine with an organic sulfonic acid or an organic acid phosphate. The amide-containing amine is a condensation product obtained by reacting a fatty acid having 8-24 carbon atoms with an amino compound having the general formula (I) or (II): R.sup.1 R.sup.2 N[(CH.sub.2).sub.x --NH].sub.y H (I) R.sup.3 N[(CH.sub.2).sub.z NH.sub.2 ].sub.2 (II) wherein R.sup.1, R.sup.2, R.sup.3 each represent, independently from each other, hydrogen, an alkyl group haaving 1-24 carbon atoms or an alkenyl group having 1-24 carbon atoms, x is an integer of 1-4, y is an integer of 1-8 and z is an integer of 1-4.
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