POLYESTER POLYOL, POLYOL PREPARATION FOR LAMINATING ADHESIVE AGENT, RESIN COMPOSITION, CURABLE RESIN COMPOSITION, ADHESIVE AGENT FOR LAMINATING USE, AND BACK SHEET FOR SOLAR CELL

WIPO Patent Application WO/2015/033857

A1

Provided are: a polyester polyol which can exhibit high adhesion strength after being cured when used as the main ingredient for a laminating adhesive agent, has such long-term stability that the adhesion strength is not deteriorated in a wet heat resistance test, and exhibits good appearance after being subjected to a lamination processing; a resin composition which is prepared using the polyester polyol; a two-part adhesive agent for laminating use, which contains the resin composition; and a back sheet for a solar cell. Specifically, as the main ingredient for a two-part adhesive agent for laminating use, a polyester polyol is used, which is characterized by having a resin structure produced by reacting a branched alkylene diol, a long-chain aliphatic dicarboxylic acid having 8 to 20 carbon atoms and an aromatic tricarboxylic acid with one another, and is also characterized by having a weight average molecular weight (Mw) ranging from 10,000 to 100,000 and a molecular weight distribution (Mw/Mn) ranging from 3.0 to 4.7.

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

PCT/JP2014/072642

March 12, 2015

August 28, 2014

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DAINIPPON INK & CHEMICALS (JP)

C08G63/127; B32B27/40; C08G18/42; C08G59/62; C09J7/02; C09J167/02; C09J175/06

WO2012144329A1	2012-10-26
WO2012133270A1	2012-10-04
WO2010084833A1	2010-07-29
WO2013157604A1	2013-10-24

KONO MICHIHIRO (JP)
Michihiro Kono (JP)

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