Urethane adhesive for outdoor use

A technology of polyurethane adhesives and polyurethane resins, applied in the direction of polyurea/polyurethane adhesives, adhesive types, adhesives, etc., can solve difficult problems such as the durability of solar cell backsheets, and achieve improved peel strength and weather resistance properties, improved peel strength, improved weather resistance

Inactive Publication Date: 2013-12-18
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to say that polyurethane-based adhesives are durable enough to be used as solar cell backsheets exposed to the outdoors for a long time

Method used

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  • Urethane adhesive for outdoor use
  • Urethane adhesive for outdoor use
  • Urethane adhesive for outdoor use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0233]

[0234] As indicated in Table 1, after weighing and mixing the following:

[0235] (a1-1) SUMIDULE N3300 (trade name) produced by Sumika Bayer Urethane Co., Ltd. (13.16 g);

[0236] (a2-1) PES229 (trade name) (86.84 g) produced by Asahikawa Chemical Co., Ltd. as a resin component;

[0237] (B1) TINUVIN479 (trade name) (0.50 g) produced by BASF Corporation; and

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Abstract

Provided are a urethane adhesive for outdoor use which has high peel strength and excellent weatherability, a solar-cell back sheet obtained using the adhesive, and a solar-cell module obtained using the solar-cell back sheet. The urethane adhesive for outdoor use comprises (A) a urethane resin obtained by reacting one or more isocyanate compounds (a1) with a polyol (a2) having an ester bond and (B) a hydroxyphenyltriazine compound, the isocyanate compounds (a1) comprising at least one compound selected from aliphatic isocyanates and alicyclic isocyanates. The adhesive has high peel strength and excellent weatherability. The urethane resin for outdoor use which further contains a silane compound is more preferable.

Description

technical field [0001] The present invention relates to polyurethane adhesives for outdoor use. More specifically, the present invention relates to a solar cell back sheet obtainable by using the adhesive, and to a solar cell module obtainable by using the solar cell back sheet. Background technique [0002] Outdoor materials such as barrier materials, roofing materials, solar panel materials, window materials, outdoor floor materials, lighting protective materials, automotive components, and notice boards contain, as a composition, a laminate obtainable by laminating a plurality of films using an adhesive Material. Examples of the film constituting the laminate include metal foils, metal plates, and metal-deposited films of aluminum, copper, steel, etc.; plastic films of polypropylene, polyvinyl chloride, polyester, fluororesin, acrylic resin, etc.; and others. [0003] Since these laminates are exposed to ultraviolet light for a long period of time, excellent weather res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J175/04C09J11/06
CPCC08G18/3851C09J175/04Y02E10/50H01L31/049C09J175/06C09J11/06H01L31/042
Inventor 松木裕一吉田良夫早川正
Owner HENKEL KGAA
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