Abstract: A resin composition, containing: (A) polyolefin; (B) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 20 to 65 mol % and a degree of saponification of vinyl acetate units of 96% or more; (C) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 68 to 98 mol % and a degree of saponification of vinyl acetate units of 20% or more; (D) a random copolymer consisting of ethylene and vinyl acetate; (E) a pigment comprising titanium oxide particles comprising a surface coated with a compound of a metal other than titanium or a silicon compound; and (I) a lubricant; wherein a mass ratio (AB) is from 3 to 99.5, a mass ratio (B/C) is from 1 to 100, a mass ratio of (D/C) is from 0.1 to 15, a mass ratio (E/C) is from 0.04 to 50, and a content of (C) is from 0.01 to 2.4 parts, particularly 0.33 to 1.5 parts, by mass based on 100 parts by mass of (A) and (B).

Abstract: Provided is a method of producing a multilayered structure, comprising the steps of: obtaining a regrind (C) by grinding a multilayered structure (B) having a layer of a resin composition (A), followed by sieving; and obtaining a multilayered structure (F) having a layer of a resin composition (E) made by melt kneading the regrind (C) and a polyolefin (D), wherein the resin composition (A) contains a polyolefin (G), a saponified ethylene-vinyl acetate copolymer (H) having an ethylene content of from 20 to 65 mol % and having a degree of saponification of vinyl acetate units of 96% or more, a saponified ethylene-vinyl acetate copolymer (I) having an ethylene content of from 68 to 98 mol % and having a degree of saponification of vinyl acetate units of 20% or more, and an antistatic agent (J), and a mass ratio (H/I) is from 0.1 to 10.

Abstract: A multilayer structure, comprising: a layer of a resin composition (A); a layer of a saponified ethylene-vinyl acetate copolymer (B); and a layer of polyolefin (C) arranged on one side or both sides of those layers, wherein the resin composition (A) contains polyolefin (D), a saponified ethylene-vinyl acetate copolymer (E) and a saponified ethylene-vinyl acetate copolymer (F1) and/or an acid-modified ethylene-vinyl acetate copolymer (F2), the copolymer (E) has a mass ratio [E/(F1+F2)] of from 0.05 to 30, the polyolefin (D) has the copolymer (E) having an average particle diameter of from 0.1 to 1.8 ?m dispersed in a matrix thereof, the layers of (A) and of (C) have thicknesses of from 50 to 1000 ?m, and from 25 to 1000 ?m, respectively, which enables provision of a multilayer structure having good gas barrier properties after retort processing and a good appearance.

Abstract: A resin composition, containing: (A) polyolefin; (B) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 20 to 65 mol % and a degree of saponification of vinyl acetate units of 96% or more; (C) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 68 to 98 mol % and a degree of saponification of vinyl acetate units of 20% or more; and a pigment (E), wherein a mass ratio (A/B) is from 3 to 99.5, a mass ratio (B/C) is from 1 to 100, a mass ratio (E/C) is from 0.04 to 50, and a content of (C) is from 0.01 to 2.4 parts by mass based on 100 parts by mass of (A) and (B). A molded product, in particular a multilayered structure, obtained by melt molding the resin composition has good dispersibility of the pigment, and improved uneven coloration.

Abstract: A resin composition, containing: (A) polyolefin; (B) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 20 to 65 mol % and a degree of saponification of vinyl acetate units of 96% or more; (C) a saponified ethylene-vinyl acetate copolymer having an ethylene content of from 68 to 98 mol % and a degree of saponification of vinyl acetate units of 20% or more; and a pigment (E), wherein a mass ratio (A/B) is from 3 to 99.5, a mass ratio (B/C) is from 1 to 100, a mass ratio (E/C) is from 0.04 to 50, and a content of (C) is from 0.01 to 2.4 parts by mass based on 100 parts by mass of (A) and (B). A molded product, in particular a multilayered structure, obtained by melt molding the resin composition has good dispersibility of the pigment, and improved uneven coloration.

Abstract: Provided is a method of producing a multilayered structure, comprising the steps of: obtaining a regrind (C) by grinding a multilayered structure (B) having a layer of a resin composition (A), followed by sieving; and obtaining a multilayered structure (F) having a layer of a resin composition (E) made by melt kneading the regrind (C) and a polyolefin (D), wherein the resin composition (A) contains a polyolefin (G), a saponified ethylene-vinyl acetate copolymer (H) having an ethylene content of from 20 to 65 mol % and having a degree of saponification of vinyl acetate units of 96% or more, a saponified ethylene-vinyl acetate copolymer (I) having an ethylene content of from 68 to 98 mol % and having a degree of saponification of vinyl acetate units of 20% or more, and an antistatic agent (J), and a mass ratio (H/I) is from 0.1 to 10.

Abstract: Provided is a multilayer structure, comprising: a layer of a resin composition (A); a layer of a saponified ethylene-vinyl acetate copolymer (B) having an ethylene content of from 20 to 65 mol % and having a degree of saponification of vinyl acetate units of 96% or more; and a layer of polyolefin (C) arranged on one side or both sides of those layers, wherein the resin composition (A) contains polyolefin (D), a saponified ethylene-vinyl acetate copolymer (E) having an ethylene content of from 20 to 65 mol % and having a degree of saponification of vinyl acetate units of 96% or more, and a saponified ethylene-vinyl acetate copolymer (F1) having an ethylene content of from 68 to 98 mol % and having a degree of saponification of vinyl acetate units of 20% or more and/or an acid-modified ethylene-vinyl acetate copolymer (F2) having an ethylene content of from 68 to 98 mol %, the saponified ethylene-vinyl acetate copolymer (E) has a mass ratio [E/(F1+F2)] of from 0.

Abstract: Disclosed is a container cap having, as a sealing gasket, a layer of a resin composition as adhered to the surface of the cap body of polypropylene, wherein said resin composition comprises (A) from 25 to 70% by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of from 20 to 60 mol % and a degree of saponification of at least 96% and (B) from 30 to 75% by weight of a polyolefin having a propylene or 1-butene content of at least 50 mol %. The container cap has excellent gas-barrier properties and sealability for containers, and is suitable for packaging containers for foods, medicines, agricultural chemicals, etc.

Abstract: The molded component is formed by mixing or laminating a barrier resin (A) having a solubility parameter (calculated from the Fedors' equation) of more than 11 and a thermoplastic resin (B) having a solubility parameter (calculated from the Fedors' equation) of not more than 11. The molded component has excellent gasoline barrier properties and also excellent performance in thermal fusion properties and mechanical strength. The fuel container provided with such a molded component is significantly improved with regard to leakage of fuel from the molded component portion.

Abstract: A resin composition comprising (A) an ethylene-vinyl alcohol copolymer, (B) a polyamide resin, (C) an ethylene-unsaturated carboxylic acid random copolymer or its metal salt, and (D) a thermoplastic resin except the resins noted above, of which the solubility parameter (as calculated from the Fedors' formula) is not more than 11. The resin composition has good compatibility, excellent barrier properties, mechanical strength, flexibility, drawability, melt stability, scrap recyclability, heat sealability, coatability, stain resistance and transparency.

Abstract: A gas barrier material having an oxygen permeability of not higher than 30 ml.multidot.20 .mu.m/m.sup.2 .multidot.day.multidot.atm measured at 20.degree. C., 100% RH, which comprises a polymer containing not less than 30 mol % of repeating units of formula (1): ##STR1## wherein R.sup.1 is a C.sub.1-2 alkyl group, and R.sup.2 is hydrogen or a C.sub.1-3 alkyl group.This gas barrier material exhibits very good gas barrier properties under conditions of high humidity, and it possesses superior clarity and melt moldability.