RESIN COMPOSITION, TWO-PART LAMINATING ADHESIVE, LAMINATED FILM, AND BACKSHEET FOR SOLAR CELL

Title:

RESIN COMPOSITION, TWO-PART LAMINATING ADHESIVE, LAMINATED FILM, AND BACKSHEET FOR SOLAR CELL

Document Type and Number:

WIPO Patent Application WO/2013/157604

Kind Code:

A1

Abstract:

Provided is a resin composition which can form a cured coating film exhibiting high strength, high bond strength and excellent long-term stability such that little deterioration in the bond strength is observed in a damp heat test and which can ensure excellent surface appearance of a laminate. Also provided are: a two-part laminating adhesive containing said resin composition; a laminated film having a layer made from the adhesive; and a backsheet for a solar cell. The resin composition comprises: a polyester polyurethane polyol which has a branched structure in the molecule and which has a weight-average molecular weight of 10,000 to 100,000 and a molecular weight distribution of 5.0 or more; a polyester polyol which has a branched structure in the molecule and which has a weight-average molecular weight of 10,000 to 50,000 and a molecular weight distribution of less than 5.0; a hydroxyl-containing epoxy resin which has a number-average molecular weight of 300 to 5,000; a hydroxyl-containing polycarbonate resin which has a number-average molecular weight of 300 to 3,000; and a polyisocyanate. The two-part laminating adhesive contains the composition.

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Inventors:

UMINO AKIO (JP)
UNO SEIICHI (JP)
HOZUMI MASAMI (JP)
AKITA KOUJI (JP)
TODA TETSUYA (JP)

Application Number:

PCT/JP2013/061507

Publication Date:

October 24, 2013

Filing Date:

April 18, 2013

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS (JP)

International Classes:

C08G18/40; B32B27/36; B32B27/40; C08G18/10; C08G18/42; C08G18/44; C08L63/00; C08L69/00; C09J169/00; H01L31/042

Foreign References:

JP2010043238A	2010-02-25
JP2001335771A	2001-12-04
JP2006182652A	2006-07-13

Attorney, Agent or Firm:

KONO MICHIHIRO (JP)
Michihiro Kono (JP)

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