Resin composition, resin pellet, method for producing resin pellet, and solar cell encapsulant

US9460829B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9460829-B2
Application numberUS-201214241460-A
CountryUS
Kind codeB2
Filing dateAug 22, 2012
Priority dateSep 1, 2011
Publication dateOct 4, 2016
Grant dateOct 4, 2016

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Abstract

Official abstract text for this publication.

A resin composition comprising an ethylene-unsaturated ester copolymer and metakaolin, wherein the ethylene-unsaturated ester copolymer comprises structural units derived from ethylene and structural units derived from an unsaturated ester and the content of the structural units derived from the unsaturated ester is 20 to 35% by weight where the total content of the structural units derived from ethylene and the structural units derived from the unsaturated ester is taken as 100% by weight, and the resin composition comprises 0.001 to 5 parts by weight of the metakaolin per 100 parts by weight of the ethylene-unsaturated ester copolymer.

First claim

Opening claim text (preview).

The invention claimed is: 1. A solar cell encapsulant comprising a resin composition comprising an ethylene-unsaturated ester copolymer and metakaolin, wherein the ethylene-unsaturated ester copolymer comprises structural units derived from ethylene and structural units derived from an unsaturated ester, wherein a content of the structural units derived from the unsaturated ester is 20 to 35% by weight when a total content of the structural units derived from ethylene and the structural units derived from the unsaturated ester is taken as 100% by weight, and wherein the resin composition comprises 0.001 to 5 parts by weight of the metakaolin per 100 parts by weight of the ethylene-unsaturated ester copolymer. 2. A solar cell module comprising the solar cell encapsulant according to claim 1 . 3. A method for producing a resin pellet comprising metakaolin attached to a surface of an ethylene-unsaturated ester copolymer pellet, wherein the ethylene-unsaturated ester copolymer that forms the ethylene-unsaturated ester copolymer pellet comprises structural units derived from ethylene and structural units derived from an unsaturated ester, wherein a content of the structural units derived from the unsaturated ester is 20 to 35% by weight when a total content of the structural units derived from ethylene and the structural units derived from the unsaturated ester is taken as 100% by weight, and wherein the metakaolin is attached in an amount of 0.001 to 5 parts by weight per 100 parts by weight of the ethylene-unsaturated ester copolymer pellet, the method comprising attaching a dispersion liquid comprising metakaolin and a dispersion medium to the surface of the ethylene-unsaturated copolymer pellet and removing the dispersion medium from the dispersion liquid attached to the surface of the ethylene-unsaturated ester copolymer pellet. 4. A solar cell encapsulant obtained from a resin pellet comprising metakaolin attached to a surface of an ethylene-unsaturated ester copolymer pellet, wherein the ethylene-unsaturated ester copolymer that forms the ethylene-unsaturated ester copolymer pellet comprises structural units derived from ethylene and structural units derived from an unsaturated ester, wherein a content of the structural units derived from the unsaturated ester is 20 to 35% by weight when a total content of the structural units derived from ethylene and the structural units derived from the unsaturated ester is taken as 100% by weight, and wherein the metakaolin is attached in an amount of 0.001 to 5 parts by weight per 100 parts by weight of the ethylene-unsaturated ester copolymer pellet.

Assignees

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Classifications

  • with unsaturated acids, e.g. [meth]acrylic acid; with unsaturated esters, e.g. [meth]acrylic acid esters · CPC title

  • Materials of encapsulations · CPC title

  • from acrylic compounds · CPC title

  • Photovoltaic [PV] energy · CPC title

  • use in coating or encapsulating of electronic parts · CPC title

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What does patent US9460829B2 cover?
A resin composition comprising an ethylene-unsaturated ester copolymer and metakaolin, wherein the ethylene-unsaturated ester copolymer comprises structural units derived from ethylene and structural units derived from an unsaturated ester and the content of the structural units derived from the unsaturated ester is 20 to 35% by weight where the total content of the structural units deriv…
Who is the assignee on this patent?
Yoda Hiroaki, Sumitomo Chemical Co
What technology area does this patent fall under?
Primary CPC classification C08L23/0869. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Oct 04 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).