Resin composition including a saponified ethylene-vinyl acetate copolymer, polyolefin, a graft copolymer and hydrotalcite
AssigneeNippon Gohsei Kagaku Kogyo Kabushiki Kaisha
InventorsTakamasa Moriyama, Hiroyuki Honda, Hiroshi Takida
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Abstract
A resin composition which comprises (A) a saponified ethylene-vinyl acetate copolymer, (B) a polyolefin resin, (C) a graft polymer obtained by grafting an ethylenically unsaturated carboxylic acid or a derivative thereof to a polyolefin resin and reacting the adduct with a polyamide oligomer or polyamide, and (D) a hydrotalcite compound representable by the general formula M.sub.X Al.sub.y (OH).sub.2x+3y-2z (E).sub.z.aH.sub.2 O wherein M is Mg, Ca or Zn, E is CO.sub.3 or HOP.sub.4, x, y and z each independently is a positive number and a is 0 (zero) or a positive number.
Claims5
A resin composition including a saponified ethylene-vinyl acetate copolymer, a polyolefin resin, a graft copolymer and hydrotalcite comprising
- (A) 50 to 99.5 weight % of a saponified ethylene-vinyl acetate copolymer with an ethylene content of 20 to 60 mole % and a degree of saponification of its vinyl acetate component being not less than 95 mole %,
- (B) 0.4 to 50 weight % of a polyolefin resin,
- (C) 0.1 to 15 weight % of a graft polymer obtained by grafting 0.05 to 10 parts by weight of an ethylenically unsaturated carboxylic acid or a derivative there of to 100 parts by weight of a polyolefin resin to produce an adduct and reacting the adduct with a polyamide oligomer or polyamide where the reaction ratio of the polyamide oligomer or polyamide to the adduct is 0.01 to 1 mole per mole of carboxyl group of the adduct, and
- (D) a hydrotalcite compound representable by the general formula
- M.sub.x Al.sub.y (OH).sub.2x+3y-2z (E).sub.z. aH.sub.2 O
- wherein M is Mg, Ca or Zn, E is CO.sub.3 or HPO.sub.4, x, y and z each independently is positive number and a is 0 (zero) or a positive number.
Dependencies are inferred from the claim text.