METHOD FOR MANUFACTURING (METH)ACRYLIC POLYMER
PROBLEM TO BE SOLVED: To solve the problems that a conventional living radically polymerizing method causes a long-hour induction period, can not make a structure regulation such as a molecular weight or a molecular weight distribution, or has not such a polymerization activity that allows to react...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
04.08.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To solve the problems that a conventional living radically polymerizing method causes a long-hour induction period, can not make a structure regulation such as a molecular weight or a molecular weight distribution, or has not such a polymerization activity that allows to react until a higher monomer conversion, when a catalyst of zerovalent metal copper or of a copper compound in terms of a weight of copper atoms is used in an amount of 300 ppm or less relative to the whole weight of (meth)acrylic-based monomers to constitute the polymer. SOLUTION: This manufacturing method of a living radically polymerizing method for a (meth)acrylic-based monomer uses a reaction system in the presence of an organic halogen compound, a zero-valent metal copper, a monovalent copper compound, and a polyamine compound, wherein the zero-valent copper metal and the monovalent copper compound are combined in a molar ratio (the zero-valent copper metal/the monovalent copper compound) of 1-9. COPYRIGHT: (C)2011,JPO&INPIT |
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Bibliography: | Application Number: JP20100227581 |