RELEASE AGENT, LAYERED PRESSURE-SENSITIVE ADHESIVE PRODUCT, AND LAYERED PRESSURE-SENSITIVE ADHESIVE TAPE

Title:

RELEASE AGENT, LAYERED PRESSURE-SENSITIVE ADHESIVE PRODUCT, AND LAYERED PRESSURE-SENSITIVE ADHESIVE TAPE

Document Type and Number:

WIPO Patent Application WO/2004/048464

Kind Code:

A1

Abstract:

A release agent which is for forming a release layer to be in contact with a pressure-sensitive adhesive layer and comprises a polyolefin (A) having a weight-average molecular weight of 1×10⁴ or higher and optionally having a functional group and a hydrocarbon (B) having a viscosity at 23°C of 1 to 1×10⁴ cP as measured in accordance with JIS K-7117, the polyolefin (A)/hydrocarbon (B) ratio being from 97/3 to 60/40 by weight. This release agent is a new release agent which replaces silicone or fluororesin release agents.

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Inventors:

SHIBATOU KEISUKE (JP)
YAMAMOTO SATORU (JP)
SEKI MOTOHIRO (JP)
NOZAWA KOUTAROU (JP)
AKASHIGE ETSUSHI (JP)
AMAMIYA TAKAHIRO (JP)

Application Number:

PCT/JP2003/014999

Publication Date:

June 10, 2004

Filing Date:

November 25, 2003

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)
SHIBATOU KEISUKE (JP)
YAMAMOTO SATORU (JP)
SEKI MOTOHIRO (JP)
NOZAWA KOUTAROU (JP)
AKASHIGE ETSUSHI (JP)
AMAMIYA TAKAHIRO (JP)

International Classes:

B32B27/32; C08K5/01; C08L23/08; C08L23/26; C09J7/20; (IPC1-7): C08L23/00; C09D123/00; B32B27/32; C09J7/02

Domestic Patent References:

WO1994016885A1

1994-08-04

Foreign References:

JP2000108271A	2000-04-18
JP2002309227A	2002-10-23
JP2001246697A	2001-09-11

Other References: