The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.

The present invention provides: a catalyst which has high activity and enables the production of an olefin polymer that has a polar group; and a method for producing the polymer. A catalyst for olefin polymerization, which contains a metal complex represented by general formula (C1); and a method for producing an ethylene (co)polymer, wherein (1) ethylene is polymerized, (2) ethylene and an olefin having a polar group represented by general formula (1) are copolymerized, or (3) ethylene, an olefin having a polar group represented by general formula (1) and another monomer are copolymerized, with use of the above-described catalyst. (In the formulae, the symbols are as defined in the description; and at least one of R.sup.6 and R.sup.7 represents a 9-fluorenyl analogous group represented by general formula (2).

The present invention provides: a catalyst which has high activity and enables the production of an olefin polymer that has a polar group; and a method for producing the polymer. A catalyst for olefin polymerization, which contains a metal complex represented by general formula (C1); and a method for producing an ethylene (co)polymer, wherein (1) ethylene is polymerized, (2) ethylene and an olefin having a polar group represented by general formula (1) are copolymerized, or (3) ethylene, an olefin having a polar group represented by general formula (1) and another monomer are copolymerized, with use of the above-described catalyst. (In the formulae, the symbols are as defined in the description; and at least one of R.sup.6 and R.sup.7 represents a 9-fluorenyl analogous group represented by general formula (2).

An organosiloxane graft polyvinyl alcohol polymer contains a structural unit shown by the following general formula (1), ##STR00001##
wherein M.sup.1 and M.sup.2 represent a hydrogen atom, an acetyl group, or a siloxane group shown by the following general formula (2), provided that at least one of M.sup.1 and M.sup.2 is a siloxane group shown by the general formula (2); and A represents a single bond or a linking group, ##STR00002##
wherein R.sup.1 represents a monovalent organic group having 1 to 6 carbon atoms; R.sup.2, R.sup.3, and R.sup.4 each represent a monovalent organic group having 1 to 6 carbon atoms or a siloxy group shown by OSiR.sup.5R.sup.6R.sup.7, where R.sup.5, R.sup.6, and R.sup.7 each represent a monovalent organic group having 1 to 6 carbon atoms; n represents an integer of 1 to 10; and a represents an integer of 0 to 2.

An organosiloxane graft polyvinyl alcohol polymer contains a structural unit shown by the following general formula (1), ##STR00001##
wherein M.sup.1 and M.sup.2 represent a hydrogen atom, an acetyl group, or a siloxane group shown by the following general formula (2), provided that at least one of M.sup.1 and M.sup.2 is a siloxane group shown by the general formula (2); and A represents a single bond or a linking group, ##STR00002##
wherein R.sup.1 represents a monovalent organic group having 1 to 6 carbon atoms; R.sup.2, R.sup.3, and R.sup.4 each represent a monovalent organic group having 1 to 6 carbon atoms or a siloxy group shown by OSiR.sup.5R.sup.6R.sup.7, where R.sup.5, R.sup.6, and R.sup.7 each represent a monovalent organic group having 1 to 6 carbon atoms; n represents an integer of 1 to 10; and a represents an integer of 0 to 2.

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.

Disclosed is a radiation curable composition comprising 2-hydroxy-3-butenoic acid and/or at least one ester of 2-hydroxy-3-butenoic acid and at least one additional compound selected from radiation curable monomers, oligomers and polymers.