HIGHLY ADHESIVE RESIN COMPOSITION AND MOLDED ARTICLE PRODUCED FROM SAME, AND LAMINATE

WIPO Patent Application WO/2015/125688

A1

[Problem] To provide: a molded article which enables the production of a molded article having flexibility, excellent mechanical properties and excellent adhesivity to a polar polymer and also enables the production of a laminate, and which is highly stable after being adhered to an object of interest; and a laminate. [Solution] A highly adhesive resin composition comprising: a polyvinyl acetal which has an acetalization degree of 50 to 85 mol%, a vinyl ester monomer unit content of 0.1 to 20 mol% and a viscosity average polymerization degree of 200 to 5000, and which has such a property that, when the polyvinyl acetal is heated at 230ºC for three hours and is then subjected to a gel permeation chromatographic measurement, the peak top molecular weight (A) as measured using a differential refractive index detector and the peak top molecular weight (B) as measured using an absorbance detector (a wavelength employed for measurement: 280 nm) satisfy the following formula (1): (A-B)/A < 0.60, wherein the absorbance at the peak top molecular weight (B) is 0.50 × 10-3 to 1.00 × 10-2; and a thermoplastic resin selected from polyester, polyamide, an α-olefin (co)polymer, a cellulose-type resin, an acrylic resin and a styrene-type resin.

SHIMAZUMI YUHI (JP)
KUSUDOU TAKESHI (JP)
TOKUCHI KAZUKI (JP)
ASANUMA YOSHIAKI (JP)

PCT/JP2015/053844

August 27, 2015

February 12, 2015

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KURARAY CO (JP)

C08L29/14; B32B27/30; C08L101/00

WO2008050738A1	2008-05-02
WO2009081877A1	2009-07-02

JP5420808B1	2014-02-19
JP5420804B1	2014-02-19
JP5469286B1	2014-04-16

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