Title:
高剪断強さを有する感圧接着剤組成物
Document Type and Number:
Japanese Patent JP3720351
Kind Code:
B2
Abstract:
This invention provides a normally tacky pressure-sensitive adhesive composition comprising (1) a radial teleblock copolymer having at least three monoalkenyl arene polymer blocks and a branched elastomeric conjugated diene polymer block, (2) a tackifying resin, and (3) from about 5 to about 20 parts by weight extending oil per 100 parts by weight of radial copolymer. The copolymer preferably has a molecular weight of about 180,000 to about 250,000, as expressed in polystyrene equivalent molecular weight units. The monoalkenyl arene polymer blocks preferably comprise from about 17% to about 23% by weight of the total molecular weight of the copolymer. The preferred polymer for the monoalkenyl arene block is polystyrene; the preferred polymer for the elastomeric conjugated diene block is polyisoprene.
Inventors:
Barkholtz, Ronald Bee.
Glad, Mark Dee.
Talbot, Richard Elle.
Glad, Mark Dee.
Talbot, Richard Elle.
Application Number:
JP51509493A
Publication Date:
November 24, 2005
Filing Date:
February 26, 1993
Export Citation:
Assignee:
3M COMPANY
International Classes:
C09J7/02; C09J7/04; C09J153/00; C09J153/02; (IPC1-7): C09J153/00; C09J7/02; C09J7/04
Domestic Patent References:
| JP56145963A | ||||
| JP3146581A | ||||
| JP1266156A | ||||
| JP1289857A | ||||
| JP608379A | ||||
| JP61171714A |
Attorney, Agent or Firm:
Takashi Ishida
Jun Tsuruta
Tetsuji Koga
Masaya Nishiyama
Higuchi Souji
Jun Tsuruta
Tetsuji Koga
Masaya Nishiyama
Higuchi Souji