JP2014156505A5

JP2014156505A5 -

Info

Publication number: JP2014156505A5
Application number: JP2013026599A
Authority: JP
Filing date: 2013-02-14
Publication date: 2016-03-31
Anticipated expiration: 2033-02-14

Description

本発明者は、前記の課題を解決するため、鋭意検討の結果、アクリル樹脂及びポリエステル樹脂から選択される水酸基を含有する樹脂、ポリイソシアネート化合物を含有する組成物に、前記樹脂類に相溶性良好なカルボキシル基又は水酸基を導入した変性ポリオレフィンを加えることにより、前記課題を解決することを見出した。 In order to solve the above problems, the present inventor has made extensive studies, and as a result, the resin containing a hydroxyl group selected from an acrylic resin and a polyester resin, and a composition containing a polyisocyanate compound have good compatibility with the resins. The present inventors have found that the above-mentioned problems can be solved by adding a modified polyolefin into which a carboxyl group or a hydroxyl group is introduced .

すなわち本発明は、アクリル樹脂及びポリエステル樹脂から選択される、水酸基価が１〜２００ｍｇＫＯＨ／ｇである水酸基を含有する樹脂（Ａ）、ポリイソシアネート化合物（Ｂ）、カルボキシル基又は水酸基を導入した変性ポリオレフィン（Ｃ）を含有することを特徴とする易接着剤組成物、該組成物を積層した積層フィルム、太陽電池バックシート、該フィルムを構成成分とする太陽電池を提供する。 That is, the present invention is selected from acrylic resins and polyester resins, resin hydroxyl value containing a hydroxyl group is 1~200mgKOH / g (A), polyisocyanate compound (B), modified polyolefin obtained by introducing a carboxyl group or a hydroxyl group An easy-adhesive composition containing (C), a laminated film obtained by laminating the composition, a solar battery back sheet, and a solar battery comprising the film as a constituent component are provided.

本発明に用いる水酸基を含有する樹脂（Ａ）としては、樹脂の水酸基価が１〜２００ｍｇＫＯＨ／ｇであれば、限定されないが、たとえば、それぞれ水酸基を有するアクリル樹脂、ポリエステル樹脂が挙げられ、これらは単独で、或いは、２種以上を併用してもよい。 The resin (A) having a hydroxyl group used in the present invention, if the hydroxyl value of the resin is 1~200mgKOH / g, but not limited to, for example, an acrylic resin, each having a hydroxyl group, a polyester resin, which are It may be used alone or in combination of two or more.

本発明に用いる変性ポリオレフィン（Ｃ）は、本発明の組成物のその他の成分に相溶可能であれば、特に限定されないが、後述する樹脂が挙げられる。
これらの樹脂の中でも、後述する極性基を有していて、且つポリオレフィン骨格を有するものが好ましい。 The modified polyolefin (C) used in the present invention is not particularly limited as long as it is compatible with the other components of the composition of the present invention, and examples thereof include resins described later .
Among these resins, those having a polar group described later and having a polyolefin skeleton are preferable .

前記極性基としては、例えば、水酸基、カルボキシル基が挙げられる。 The polar groups, e.g., hydroxyl group and a carboxyl group.

本発明で用いる変性ポリオレフィン（Ｃ）は、上記のとおり、ポリオレフィン樹脂に、例えば、カルボキシル基、水酸基を導入した変性ポリオレフィン樹脂がより好ましい。更に、これらの変性ポリオレフィン樹脂のうち、金属層の密着性がより向上し、耐電解質性に優れることから、１〜２００ｍｇＫＯＨ／ｇの酸価を有する変性ポリオレフィン樹脂（以下、酸変性ポリオレフィン樹脂と記す）および／または１〜２００ｍｇＫＯＨ／ｇの水酸基価を有する変性ポリオレフィン樹脂（以下、水酸基変性ポリオレフィン樹脂と記す）がより好ましい。 Modified polyolefin (C) used in the present invention, as described above, the polyolefin resin, for example, a carboxyl group, modified polyolefin resin obtained by introducing a hydroxyl group is more preferable. Further, among these modified polyolefin resins, the adhesion of the metal layer is further improved and the electrolyte resistance is excellent. Therefore, a modified polyolefin resin having an acid value of 1 to 200 mgKOH / g (hereinafter referred to as an acid-modified polyolefin resin). And / or a modified polyolefin resin having a hydroxyl value of 1 to 200 mgKOH / g (hereinafter referred to as a hydroxyl group-modified polyolefin resin) is more preferred.

Claims

Contains a resin (A) containing a hydroxyl group having a hydroxyl value of 1 to 200 mgKOH / g, a polyisocyanate compound (B), a modified polyolefin (C) introduced with a carboxyl group or a hydroxyl group , selected from acrylic resins and polyester resins An easy-adhesive composition characterized in that

Number average molecular weight of the resin (A) having a hydroxyl group is 5,000 to 50,000, an easy adhesive composition of claim 1, wherein the glass transition temperature of 20 to 110 ° C.

The easy-adhesive composition of Claim 1 or 2 which contains 1-50 weight part of modified polyolefin (C) with respect to 100 weight part of resin (A) containing a hydroxyl group.

Furthermore, an epoxy compound is contained, The easily bonding composition as described in any one of Claims 1-3 characterized by the above-mentioned.

The easy-adhesive composition according to any one of 1 to 4, further comprising a pigment (D) .

6. The easy-adhesive composition according to claim 5 , wherein the pigment is an inorganic oxide and / or carbon black.

The easy-adhesive composition according to claim 5 or 6 , comprising 1 to 400 parts by weight of the pigment (D) with respect to 100 parts by weight of the resin (A) containing a hydroxyl group.

A laminated polyester film obtained by laminating a cured film of the curable easy-adhesive composition according to any one of claims 1 to 7 on a polyester resin film.

A solar battery back sheet having a multilayer structure, comprising the laminated polyester resin film according to claim 8 .

A solar cell, wherein the solar cell protective sheet according to claim 9 and the sealing material constituting the solar cell module are bonded to a surface to be bonded.

Solar cell module which is a composition based on vinyl acetate copolymer - sealing material according ethylene to claim 10.