Acrylonitrile-butadiene rubber composition, and laminate having layer of the composition

US12221544B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12221544-B2
Application numberUS-201916971839-A
CountryUS
Kind codeB2
Filing dateMar 8, 2019
Priority dateMar 16, 2018
Publication dateFeb 11, 2025
Grant dateFeb 11, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An object of the present invention is to develop an NBR composition excellent in an adhesive strength with a saponified ethylene-vinyl acetate copolymer layer, and a laminate excellent in an adhesive strength of an NBR layer with a saponified ethylene-vinyl acetate copolymer layer; and the present invention relates to an acrylonitrile-butadiene rubber composition comprising an acrylonitrile-butadiene rubber and a silane-modified ethylene-vinyl acetate copolymer of 0 to 50 parts by mass with respect to 100 parts by mass of the acrylonitrile-butadiene rubber, and a laminate comprising an acrylonitrile-butadiene rubber layer comprising the composition and the saponified ethylene-vinyl acetate copolymer layer through an ethylene-vinyl acetate copolymer layer.

First claim

Opening claim text (preview).

The invention claimed is: 1. A laminate, comprising an acrylonitrile-butadiene rubber layer comprising a composition and a saponified ethylene-vinyl acetate copolymer layer through an ethylene-vinyl acetate copolymer layer, wherein the composition comprises an acrylonitrile-butadiene rubber; a silane-modified ethylene-vinyl acetate copolymer of 0 to 50 parts by mass with respect to 100 parts by mass of the acrylonitrile-butadiene rubber; and a filler of 100 to 300 parts by mass with respect to 100 parts by mass of the above acrylonitrile-butadiene rubber, wherein the thickness of the layer of the saponified ethylene-vinyl acetate copolymer layer is 0.1 to 30 mm, and wherein the acrylonitrile-butadiene rubber layer is crosslinked. 2. The laminate according to claim 1 , wherein the ethylene-vinyl acetate copolymer layer comprises a silane-modified ethylene-vinyl acetate copolymer. 3. A laminate, comprising: a layer of an acrylonitrile-butadiene rubber composition and a saponified ethylene-vinyl acetate copolymer layer, wherein the acrylonitrile-butadiene rubber composition comprises an acrylonitrile-butadiene rubber; and a silane-modified ethylene-vinyl acetate copolymer of 2 to 50 parts by mass with respect to 100 parts by mass of the acrylonitrile-butadiene rubber, and wherein the thickness of the layer of the saponified ethylene-vinyl acetate copolymer layer is 0.1 to 30 mm.

Assignees

Inventors

Classifications

  • containing two or more polymers of the same C08L -group · CPC title

  • Gas barrier composition · CPC title

  • grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C08L51/04, C08L51/06 take precedence) · CPC title

  • Homopolymers or copolymers of vinyl acetate · CPC title

  • Polyethylene · CPC title

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What does patent US12221544B2 cover?
An object of the present invention is to develop an NBR composition excellent in an adhesive strength with a saponified ethylene-vinyl acetate copolymer layer, and a laminate excellent in an adhesive strength of an NBR layer with a saponified ethylene-vinyl acetate copolymer layer; and the present invention relates to an acrylonitrile-butadiene rubber composition comprising an acrylonitrile-but…
Who is the assignee on this patent?
Mitsui Chemicals Inc
What technology area does this patent fall under?
Primary CPC classification B32B27/306. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 11 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).