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Urethane adhesive for laminated sheets

A technology for laminating sheets and adhesives, applied in the direction of polyurea/polyurethane adhesives, adhesive types, adhesives, etc., can solve problems such as strict hydrolysis resistance requirements, and achieve low-temperature adhesive properties. Excellent effect of excellent long-term hydrolysis resistance

Inactive Publication Date: 2017-08-01
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot be considered that in recent years adhesives have fully met the stringent requirements in terms of hydrolysis resistance under high temperature and high humidity and low temperature adhesive properties

Method used

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  • Urethane adhesive for laminated sheets
  • Urethane adhesive for laminated sheets
  • Urethane adhesive for laminated sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173] As shown in Table 2, 93.5 g of (A1) polymer 1 [187.0 g of polymer 1 (A1) in ethyl acetate (solid content: 50.0% by weight)], 3.31 g of aliphatic isocyanate compound 1 (B1 ), 1.76g of aliphatic isocyanate compound 2 (B2), 0.47g of polyisoprene polyol 1 (C1) and 0.94g of 3-glycidyloxypropyltriethoxysilane (D1) were mixed and then added Ethyl acetate solution was used so that the solid content was 35%, to prepare the adhesive for laminating sheets of Example 1.

Embodiment 2-9 and comparative example 1-5

[0175] In the same manner as in Example 1, according to the formulations shown in Table 2-Table 4, components (A) to (D) were mixed to prepare the laminated sheets of Examples 2-9 and Comparative Examples 1-5. Adhesives for wood.

[0176] [Table 2]

[0177]

[0178] [table 3]

[0179]

[0180] [Table 4]

[0181]

[0182]

[0183] The adhesive for laminating sheets of Example 1 was applied to a transparent polyethylene terephthalate (PET) sheet (polyester film: OE300EW36 (trade name) manufactured by Mitsubishi Chemical Corporation), so that the weight of the solid component is 10g / m 2 , and then dried at 80°C for 5 minutes.

[0184] A surface-treated PET film (SHINEBEAM Q3215 (trade name) manufactured by TOYOBO CO.LTD) was spread on the PET sheet so that the adhesive-coated surface of the PET sheet was covered with the surface-treated surface of the PET film. s surface. Using a hot roll press, the PET sheet and film were pressed at a speed of 5 m / min under a cl...

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Abstract

An object of the present invention is to provide an adhesive for laminated sheets, which is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is produced, and is also excellent in adhesive property at low temperature. Disclosed is an adhesive for laminated sheets, which comprises a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound, and also has a chemical structure derived from a diene polymer, wherein the diene polymer has a glass transition temperature of -40 DEG C or lower. The adhesive for laminated sheets is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is produced, and is also excellent in adhesive property at low temperature.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under Article 4 of the Paris Convention from Japanese Patent Application No. 2142-255229 filed in Japan on December 17, 2014, which is incorporated herein by reference in its entirety. technical field [0003] This invention relates to adhesives for laminating sheets. The invention also relates to laminated sheets obtainable by using said adhesive, and articles obtainable by using said laminated sheets, in particular solar cell backsheets. Background technique [0004] Outdoor materials such as wall protection materials, roof materials, solar panel materials, window materials, outdoor floor materials, lighting protection materials, automotive components and billboards, and packaging bags for shampoo, detergent and food include A laminated sheet (or laminate) obtained by laminating a plurality of films to each other using an adhesive is used as a constituent material. Examples of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/79C08G18/69C08G18/62C09J175/14H01L31/049
CPCC08G18/6262C08G18/69C08G18/7642C08G18/792C09J175/14H01L31/049B32B3/08B32B7/12B32B27/06B32B27/08B32B27/28B32B27/304B32B27/306B32B27/308B32B27/36B32B2255/10B32B2255/205B32B2307/304B32B2307/306B32B2307/536B32B2307/712B32B2457/10Y02E10/50C09J2203/326C08G18/73
Inventor 釜井教义伊藤祥子山田泰史池田仁志
Owner HENKEL KGAA
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