Reinforced synthetic rubber latex and uses

A resin-reinforced rubber latex is made by polymerizing monomers in emulsion, adding a resinous latex to the monomer emulsion when the monomer has undergone between 10 and 40% conversion to polymer, polymerizing the monomers to at least 45% conversion, agitating the latex particles to cause agglomer...

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Bibliographische Detailangaben
Hauptverfasser:	JR. THOMAS H. ROGERS, PIERSON ROBERT M, HOBSON RICHARD W, KOLACZEWSKI MITCHELL S
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	A resin-reinforced rubber latex is made by polymerizing monomers in emulsion, adding a resinous latex to the monomer emulsion when the monomer has undergone between 10 and 40% conversion to polymer, polymerizing the monomers to at least 45% conversion, agitating the latex particles to cause agglomeration thereof and a decrease in the surface tension, and removing unreacted monomer from the agglomerated latex. The monomers are preferably butadiene and styrene and the resin added is polystyrene or a high styrene-butadiene copolymer. The latices are suitable for foaming by frothing.