HOT-MELT ADHESIVE - IDEMITSU KOSAN CO

Title:

HOT-MELT ADHESIVE

Document Type and Number:

WIPO Patent Application WO/2015/146845

Kind Code:

A1

Abstract:

　Provided are a hot-melt adhesive having high fluidity when molten, and exhibiting high adhesive strength between PP nonwoven fabrics as well as high adhesive strength between a PE film and a PP nonwoven fabric, and a base polymer for a hot-melt adhesive. A hot-melt adhesive including (A) a propylene-based polymer satisfying (Ai) through (Aiv), and (B) an olefin-based copolymer satisfying (Bi) and (Bii), and a base polymer for a hot-melt adhesive, the base polymer satisfying (1) and (2) and comprising a mixture of (A) a propylene-based polymer satisfying (Ai) through (Aiv) and (B) an olefin-based copolymer satisfying (Bi) and (Bii). (Ai): a melting point of 120°C or lower; (Aii): Mw of 10,000-150,000; (Aiii): Mw/Mn of 2.5 or less; (Aiv): a penetration of 8 or lower; (Bi): a penetration of 15 or higher; (Bii): a melting point of 90°C or above. (1): A tensile modulus at 23°C of 400 MPa or lower. 2): A half-crystallization time at 23°C of 20 minutes or less.

Inventors:

FUJINAMI HIROKI (JP)
KOBAYASHI KENJI (JP)

Application Number:

PCT/JP2015/058529

Publication Date:

October 01, 2015

Filing Date:

March 20, 2015

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)

International Classes:

C09J123/10; C09J11/06; C09J123/00; C09J123/16

Domestic Patent References:

WO2013019507A2	2013-02-07
WO2003091289A1	2003-11-06
WO2014077258A1	2014-05-22

Foreign References:

JP2013064055A	2013-04-11
JP2011236330A	2011-11-24
JP2012072302A	2012-04-12
JP2013064054A	2013-04-11

Other References: