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US 2005/0032955 A1Published application
Resin composition and method for producing the same
AssigneeKuraray Co., Ltd.
InventorsKenji Nakano, Naohiko Uchiumi, Kaoru Ikeda
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AssigneeKuraray Co., Ltd.
InventorsKenji Nakano, Naohiko Uchiumi, Kaoru Ikeda
Estimating the term…
The present invention is directed to a resin composition superior in barrier properties and also superior in flexibility, secondary processability and interlayer adhesiveness. The present invention is also directed to an environmentally friendly method for producing a resin composition, the method releasing no carboxylic acid such as acetic acid to the peripheral environment. The invention provides an EVOH resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 μmol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 μmol/g or less and which has an ethylene content of 5 to 60 mol % and a saponification degree of from 80 to 99 mol %. In addition, the invention provides a resin composition comprising the EVOH resin composition (F) and an EVOH having an ethylene content of 5 to 60 mol % and a degree of saponification of 99.2 to 100 mol %.
An ethylene-vinyl alcohol copolymer resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 μmol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 μmol/g or less and which has an ethylene content of 5 to 60 mol % and a saponification degree of from 80 to 99 mol %.
A resin composition comprising:
A method for producing an ethylene-vinyl alcohol copolymer resin composition (F), wherein an ethylene-vinyl alcohol copolymer resin having an ethylene content of 5 to 60 mol % and a degree of saponification of 80 to 99 mol % is contacted with an aqueous solution containing an alkali metal salt (A) and carbon dioxide gas.
A method for producing a resin composition, wherein an ethylene-vinyl alcohol copolymer resin having an ethylene content of 5 to 60 mol % and a degree of saponification of 80 to 99 mol % is contacted with an aqueous solution containing an alkali metal salt (A) and carbon dioxide gas and then is melt kneaded with another thermoplastic resin (G).
Dependencies are inferred from the claim text.