Process for polymerization of water-soluble and water-insoluble carboxylic acid polymers and copolymers in a silicone oil solvent

The present invention is directed to an improved process for producing water-soluble and water-insoluble carboxylic acid polymers and copolymers. The process comprises the steps of polymerizing a carboxylic acid monomer, and a polyfunctional cross-linker monomer in a second embodiment, in an effecti...

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Bibliographische Detailangaben
Hauptverfasser:	SOJKA, MILAN F, TOMLIN, ANTHONY S
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is directed to an improved process for producing water-soluble and water-insoluble carboxylic acid polymers and copolymers. The process comprises the steps of polymerizing a carboxylic acid monomer, and a polyfunctional cross-linker monomer in a second embodiment, in an effective molar ratio, in a silicone solvent under an inert atmosphere in the presence of an effective amount of an initiator. The preferred copolymer of the second embodiment includes acrylic acid as the carboxylic acid monomer and a lauryl methacrylate and/or stearyl methacrylate as a comonomer. The resulting copolymers have new and unexpected tolerance to salt-containing water when mixed therewith.