Gas barrier resin composition, method for producing gas barrier resin composition, and molded product
AssigneeKuraray Co., Ltd.
InventorsMasakazu Nakaya, Mizuko Oshita
Life of this patent
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Abstract
Provided are: a gas barrier resin composition having sufficient long-run workability and superior gas barrier properties which compare favorably to those of fossil fuel-derived resins, while containing a biomass-derived raw material; a multilayer structure in which the gas barrier resin is used; and a method for producing such a gas barrier resin composition. The gas barrier resin composition contains at least one type of saponified ethylene-vinyl ester copolymer, wherein of ethylene and a vinyl ester, which are raw materials of the at least one type of saponified ethylene-vinyl ester copolymer, a part is derived from biomass, and a remainder is derived from a fossil fuel.
Claims40
A gas barrier resin composition comprising at least one type of saponified ethylene-vinyl ester copolymer, wherein
- of ethylene and a vinyl ester, which are raw materials of the at least one type of saponified ethylene-vinyl ester copolymer, a part is derived from biomass, and
- a remainder is derived from a fossil fuel.
A method for producing a gas barrier resin composition, wherein
- the method comprises a step of dry-blending pellets of a saponified ethylene-vinyl ester copolymer (A) with pellets of a saponified ethylene-vinyl ester copolymer (B) and carrying out melt kneading,
- of ethylene and a vinyl ester, which are raw materials of the saponified ethylene-vinyl ester copolymer (A), at least a part is derived from biomass, and
- the saponified ethylene-vinyl ester copolymer (B) is derived from a fossil fuel.
A method for producing a gas barrier resin composition, wherein
- the method comprises a step of dry-blending pellets of a saponified ethylene-vinyl ester copolymer (A), pellets of a saponified ethylene-vinyl ester copolymer (B), and pellets of a thermoplastic elastomer (G), and carrying out melt kneading,
- of ethylene and a vinyl ester, which are raw materials of the saponified ethylene-vinyl ester copolymer (A), at least a part is derived from biomass, and
- the saponified ethylene-vinyl ester copolymer (B) is derived from a fossil fuel.
Dependencies are inferred from the claim text.