PRODUCTION OF SODIUM 2-ACRYLAMIDO-2-METHYLPROPANESULFONATE POLYMER
PURPOSE: To obtain the subject polymer useful for fibers or as e.g. a papermaking dispersant, etc., by using crude sodium 2-acrylamido-2-methylpropanesulfonate produced by neutralizing an aqueous solution of crude 2-acrylamido-2- methylpropanesulfonic acid without formation of low-molecular products...
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| creator | YOKOMAKU MASAHARU NAGOSHI HIROYUKI HOSHINA MASAKI MATSUSHIMA YOSHIAKI HIRAIWA AKIHIKO |
| description | PURPOSE: To obtain the subject polymer useful for fibers or as e.g. a papermaking dispersant, etc., by using crude sodium 2-acrylamido-2-methylpropanesulfonate produced by neutralizing an aqueous solution of crude 2-acrylamido-2- methylpropanesulfonic acid without formation of low-molecular products and/or water-insoluble gel from the crude raw material. CONSTITUTION: This polymer is obtained by polymerizing crude sodium 2- acrylamido-2-methylpropanesulfonate (A2 ) produced by leaving an aqueous solution of crude 2-acrylamido-2-methylpropanesulfonic acid (A1 ) to stand for >=0.5h followed by neutralization, or polymerizing the component A2 plus another copolymerizable monomer (e.g. acrylonitrile, acrylamide). It is preferable that the component A2 be used after being allowed to stand for >=2.5h. |
| format | Patent |
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CONSTITUTION: This polymer is obtained by polymerizing crude sodium 2- acrylamido-2-methylpropanesulfonate (A2 ) produced by leaving an aqueous solution of crude 2-acrylamido-2-methylpropanesulfonic acid (A1 ) to stand for >=0.5h followed by neutralization, or polymerizing the component A2 plus another copolymerizable monomer (e.g. acrylonitrile, acrylamide). 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CONSTITUTION: This polymer is obtained by polymerizing crude sodium 2- acrylamido-2-methylpropanesulfonate (A2 ) produced by leaving an aqueous solution of crude 2-acrylamido-2-methylpropanesulfonic acid (A1 ) to stand for >=0.5h followed by neutralization, or polymerizing the component A2 plus another copolymerizable monomer (e.g. acrylonitrile, acrylamide). It is preferable that the component A2 be used after being allowed to stand for >=2.5h.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | PRODUCTION OF SODIUM 2-ACRYLAMIDO-2-METHYLPROPANESULFONATE POLYMER |
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