Invention Grant
US08410218B2 Pressure-sensitive adhesive composition having improved initial tack
有权
具有改善的初始粘性的压敏粘合剂组合物
- Patent Title: Pressure-sensitive adhesive composition having improved initial tack
- Patent Title (中): 具有改善的初始粘性的压敏粘合剂组合物
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Application No.: US12670033Application Date: 2008-07-29
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Publication No.: US08410218B2Publication Date: 2013-04-02
- Inventor: Hidetoshi Abe , Masaaki Furusawa , Yorinobu Takamatsu
- Applicant: Hidetoshi Abe , Masaaki Furusawa , Yorinobu Takamatsu
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Sandra K. Nowak
- Priority: JP2007-199630 20070731
- International Application: PCT/US2008/071415 WO 20080729
- International Announcement: WO2009/018246 WO 20090205
- Main IPC: C08L33/00
- IPC: C08L33/00 ; C08L33/02 ; C08L33/24 ; C08L35/00 ; C08L39/00 ; C09J4/00

Abstract:
The present invention is directed to providing a pressure-sensitive adhesive with good initial tack and good adhesion at low temperature. Generally, the pressure-sensitive adhesive composition comprises (1) a carboxylic group-containing (meth)acrylic tacky polymer having a weight average molecular weight of less than 800,000 and a glass transition temperature of −100° C. to −30° C., and (2) an amino group-containing (meth)acrylic non-tacky polymer having a weight average molecular weight of from 30,000 to 100,000 and a glass transition temperature of 20° C. to 90° C. The amino group-containing (meth)acrylic non-tacky polymer (2) is present in an amount of no less than 1 parts by mass and less than 20 parts by mass on a basis of 100 parts by mass of said carboxylic group-containing (meth)acrylic tacky polymer (1).
Public/Granted literature
- US20100272942A1 PRESSURE-SENSITIVE ADHESIVE COMPOSITION HAVING IMPROVED INITIAL TACK Public/Granted day:2010-10-28
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