Title:
PRESSURE-SENSITIVE ADHESIVE SHEET AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/048176
Kind Code:
A1
Abstract:
A pressure-sensitive adhesive sheet which comprises a base sheet (1) and a pressure-sensitive
adhesive layer (2) disposed on at least one surface thereof. The pressure-sensitive
adhesive sheet is characterized in that (a) the pressure-sensitive adhesive
layer (2) includes protrudent parts (2b) formed in a parallel stripe arrangement
directly on the surface of the base sheet (1) or on a pressure-sensitive adhesive
base layer (2a) disposed in a given thickness on that surface, the protrudent
parts (2b) being disposed so as to be apart from each other at a given distance and
continuously extending to edge parts of the base sheet (1), and (b) independent
discontinuous protrudent parts (2c, 2c-1, 2c-2, and 2c-3) are present in the
form of islands between adjoining protrudent stripe parts (2b). A feature of
this pressure-sensitive adhesive sheet resides in that air bubbles trapped
when the sheet is applied can be easily removed and the sheet has a satisfactory
appearance and satisfactory tackiness.
Inventors:
KATO KIICHIRO (JP)
Application Number:
PCT/JP2008/068917
Publication Date:
April 16, 2009
Filing Date:
October 10, 2008
Export Citation:
Assignee:
LINTEC CORP (JP)
KATO KIICHIRO (JP)
KATO KIICHIRO (JP)
International Classes:
C09J7/38; C09J201/00
Foreign References:
| JPS5316057U | 1978-02-10 | |||
| JP2002091317A | 2002-03-27 | |||
| JPH06248243A | 1994-09-06 | |||
| JPH06184502A | 1994-07-05 | |||
| JPS63223081A | 1988-09-16 | |||
| JPS5464162U | 1979-05-07 | |||
| JPS50108961U | 1975-09-05 | |||
| JPH03115639U | 1991-11-29 | |||
| JPH01245360S | ||||
| JPH01337287S | ||||
| JP2004115766A | 2004-04-15 | |||
| JPH10138691A | 1998-05-26 |
Attorney, Agent or Firm:
UCHIYAMA, Mitsuru (4-1 Kandasudacho 1-chome,Chiyoda-k, Tokyo 41, JP)
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