IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0603095
(1996-02-20)
|
발명자
/ 주소 |
- Watanabe Kazuyuki,JPX
- Kasai Juichi,JPX
- Harada Akio,JPX
- Zhang Wei-Zhong,JPX
|
출원인 / 주소 |
- Showa Highpolymer Co., Ltd., JPX
|
대리인 / 주소 |
Armstrong, Westerman, Hattori, McLeland & Naughton
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
6 |
초록
▼
A multilayered laminate, which comprises a plastic substrate, a thin film of a metal or a metal oxide, formed on a surface of the substrate, and a layer formed on a surface of the thin film, the layer being selected from the group consisting of: (a) a polyvinyl alcohol copolymer emulsion, obtained b
A multilayered laminate, which comprises a plastic substrate, a thin film of a metal or a metal oxide, formed on a surface of the substrate, and a layer formed on a surface of the thin film, the layer being selected from the group consisting of: (a) a polyvinyl alcohol copolymer emulsion, obtained by aqueous emulsion polymerization of a vinyl acetate monomer, an ethylene monomer and a polyvinyl alcohol; (b) a resin emulsion composition obtained by mixing (i) a polyvinyl alcohol copolymer emulsion, obtained by aqueous emulsion polymerization of a vinyl acetate monomer, an ethylene monomer and a polyvinyl alcohol with (ii) an aqueous solution of polyvinyl alcohol resin; (c) saponified resin of olefin-vinyl acetate copolymer; (d) polyamide resin; and (e) polyvinyl alcohol resin, and a heat-sealable packaging material based on the multilayered laminate.
대표청구항
▼
[ What is claimed is:] [1.] A multilayered laminate, which comprises a plastic substrate, a film of a metal or a metal oxide, formed on a surface of the substrate, and a layer formed on a surface of the film, the plastic substrate being selected from the group consisting of polypropylene, poly-4-met
[ What is claimed is:] [1.] A multilayered laminate, which comprises a plastic substrate, a film of a metal or a metal oxide, formed on a surface of the substrate, and a layer formed on a surface of the film, the plastic substrate being selected from the group consisting of polypropylene, poly-4-methylpentene-1, complete saponification products of ethylene/vinyl acetate copolymer, polyacetal, polycarbonate, polyester, polyamide, polyphenylene oxide and polysulfone, the layer being selected from the group consisting of:(a) a layer formed from a polyvinyl alcohol copolymer emulsion having an ethylene content of 1 to 50% by weight, obtained by aqueous emulsion polymerization of a vinyl acetate monomer, an ethylene monomer and a polyvinyl alcohol, the polyvinyl alcohol initially present in an amount of 15 to 60% by weight based on the total weight of the polyvinyl alcohol and the vinyl acetate monomer;(b) a layer formed from a resin emulsion composition obtained by mixing (i) a polyvinyl alcohol copolymer emulsion having an ethylene content of 1 to 50% by weight, obtained by aqueous emulsion polymerization of a vinyl acetate monomer, an ethylene monomer and a polyvinyl alcohol, the polyvinyl alcohol initially present in an amount of 3 to less than 15% by weight based on the total weight of the polyvinyl alcohol and the vinyl acetate monomer with (ii) an aqueous solution of polyvinyl alcohol resin, wherein the weight ratio of the weight of the polyvinyl alcohol to the weight of the polyvinyl alcohol and the vinyl acetate monomer in the resin emulsion is 15% or more;(c) a layer formed from a saponified resin solution of olefin-vinyl acetate copolymer;(d) a layer formed from a polyamide resin solution; and(e) a layer formed from a polyvinyl alcohol resin solution.
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