摘要:
Disclosed herein is a gas barrier film formed from a mixture containing (A) at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products of poly(meth)acrylic acid and (B) a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen gas permeability coefficient of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or lower as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film is formed from the mixture, and then subjected to a heat treatment under specific conditions, is also disclosed.
摘要翻译:本文公开了一种阻气膜,其由含有(A)至少一种聚(甲基)丙烯酸聚合物的混合物形成,所述聚(甲基)丙烯酸聚合物选自聚(甲基)丙烯酸和聚(甲基)丙烯酸的部分中和产物和( B)重量比为95:5至20:80的糖类,并且在30℃的条件下测得的氧气渗透系数为5.00×10 -3 ml(STP)×cm / m 2×H x atm {Pa}以下。 和80%相对湿度。 还公开了从混合物形成膜,然后在特定条件下进行热处理的阻气膜的制造方法。
摘要:
A gas barrier laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90, and having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and layer (B) are laminated contiguously to each other. A process for the production of a gas barrier laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 1.25.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, wherein a solution containing polyvinyl alcohol and poly(meth)acrylic acid or a partially neutralized product thereof in a weight ratio ranging from 95:5 to 10:90 is cast on a layer (B) formed from a thermoplastic resin, the solution cast is dried to form a film, and the dry film is then subjected to a heat treatment at a temperature of at least 100.degree. C. (373 K). The gas barrier film (A) and the layer (B) are contiguous to each other.
摘要翻译:具有至少两层的叠层结构的阻气性层叠体包括由含有聚乙烯醇和聚(甲基)丙烯酸的混合物或其部分中和物形成的阻气膜(A),其重量比为95:5 至10:90,并且在30℃和80%相对湿度的条件下测量的氧气渗透常数为1.25×10 -3 ml(STP)×cm / m 2×h×(t Pa)或更小,形成层(B) 来自热塑性树脂。 膜(A)和层(B)彼此相邻地层叠。 制备具有至少两层的叠层结构的阻气性层压体的方法包括形成氧气渗透常数为1.25×10 -3 ml(STP)×cm / m 2×h×(Pa)的阻气膜(A)的工序 }或更小,在30℃和80%相对湿度的条件下测量,其中包含聚乙烯醇和聚(甲基)丙烯酸或其部分中和产物的溶液的重量比为95:5至10:90 浇铸在由热塑性树脂形成的层(B)上,将溶液流延干燥以形成膜,然后在至少100℃(373K)的温度下对干膜进行热处理。 阻气膜(A)和层(B)彼此邻接。
摘要:
Disclosed herein is a gas barrier film formed from a mixture containing (A) at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products of poly(meth)acrylic acid and (B) a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen gas permeability coefficient of 5.00.times.10.sup.-3 ml(STP).cm/m.sup.2.h. atm {Pa} or lower as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film is formed from the mixture, and then subjected to a heat treatment under specific conditions, is also disclosed.
摘要:
A laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products thereof and a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and the layer (B) are laminated contiguously to each other. A process for the production of a laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% RH, wherein a solution containing at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products thereof and a saccharide in a weight ratio of 95:5 to 20:80 is coated on a layer (B) formed from a thermoplastic resin, the solution coated is dried to form a film, and the film is then subjected to a heat treatment at a temperature of at least 100.degree. C. (373K). The film (A) and the layer (B) are contiguous to each other.
摘要:
A composite deposited film including (A) a polymeric film substrate; (B) a deposit of an inorganic material formed on at least one side of the polymeric film substrate (A); and (C) a water-resistant film laminated on the deposit (B) and formed from a mixture containing a polycarboxylic acid or a partially neutralized product thereof and a saccharide in a weight ratio of 95:5 to 20:80 is provided. A production process of a composite deposited film, which includes the steps of forming a deposit (B) of an inorganic material on at least one side of a polymeric film substrate (A); casting a solution of a mixture containing a polycarboxylic acid or a partially neutralized product thereof and a saccharide in a weight ratio of 95:5 to 20:80 on the deposit (B); drying the mixture to form a film; and then subjecting the resultant dry film to a heat treatment at a temperature not lower than 100.degree. C. (373 K), thereby forming a water-resistant film (C) on the deposit (B), is also provided.
摘要:
The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts. Furthermore, there can be provided a packaging material suitable for use with articles which are required to be reliably insulated from gases for prolonged periods and should be treated under high-temperature, hot-water conditions as in boiling or pressurized high-temperature sterilization.
摘要:
The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts. Furthermore, there can be provided a packaging material suitable for use with articles which are required to be reliably insulated from gases for prolonged periods and should be treated under high-temperature, hot-water conditions as in boiling or pressurized high-temperature sterilization.
摘要:
The present invention provides a container for retort packaging comprising a laminated film having an outermost layer comprising a layer formed of a cross-linked structure containing ester bonds between poly(meth)acrylic acid (A) and polyalcoholic polymer (B); a resin composition having at least the chemical structures (X) [poly(meth)acrylic acid (A) residue], (Y) [poly(meth)acrylic acid (A)-polyalcoholic polymer (B) residue] and (Z) [metal cross-linked ionic residues], wherein the degree of esterification defined by the equation: degree of esterification=c/(b+c+d) is from 0.01 to 0.5 and the degree of ionization defined by the equation: degree of ionization=c/(b+c+d) is from 0.01 to 0.9 (wherein b, c and d represent the molar ratios of the carbon-oxygen double bond in the chemical structure of the resin composition; and a gas barrier film comprising the same.
摘要翻译:本发明提供了一种用于蒸煮包装的容器,其包括具有最外层的层压膜,该最外层包含由在聚(甲基)丙烯酸(A)和聚醇聚合物(B)之间含有酯键的交联结构形成的层; 至少具有化学结构(X)[聚(甲基)丙烯酸(A)残基],(Y)[聚(甲基)丙烯酸(A) - 多元醇聚合物(B)残基]和(Z) [金属交联离子性残基],其中酯化度由下式定义:c /(b + c + d)为0.01〜0.5,电离度由下式定义:电离度 = c /(b + c + d)为0.01〜0.9(其中b,c和d表示树脂组合物的化学结构中的碳 - 氧双键的摩尔比; 。
摘要:
The present invention provides a gas-barrier film which is produced through applying a layer containing a metallic compound to a surface of a processed-polymer layer produced from a mixture of a polyalcohol and at least one poly(meth)acrylic polymer selected from the group consisting of poly(meth)acrylic acids and partially neutralized poly(meth)acrylic acids. The invention also provides a laminated gas-barrier film containing the aforementioned gas-barrier film either surface of which is laminated on with a plastic film. The gas-barrier film exhibits excellent gas-barrier properties and can be produced through a simple, convenient process.
摘要:
The present invention provides a container for retort packaging comprising a laminated film having an outermost layer comprising a layer formed of a cross-linked structure containing ester bonds between poly(meth)acrylic acid (A) and polyalcoholic polymer (B); a resin composition having at least the chemical structures (X) [poly(meth)acrylic acid (A) residue], (Y) [poly(meth)acrylic acid (A)-polyalcoholic polymer (B) residue] and (Z) [metal cross-linked ionic residues], wherein the degree of esterification defined by the equation: degree of esterification=c/(b+c+d) is from 0.01 to 0.5 and the degree of ionization defined by the equation: degree of ionization=c/(b+c+d) is from 0.01 to 0.9 (wherein b, c and d represent the molar ratios of the carbon-oxygen double bond in the chemical structure of the resin composition; and a gas barrier film comprising the same.