Title:
粘着付与アクリル接着剤
Document Type and Number:
Japanese Patent JP4154512
Kind Code:
B2
Abstract:
The invention provides a clear and essentially colorless adhesive comprising (A) the polymerization reaction product of starting materials comprising: (a) 25 to 95 parts by weight of a polymerizable component comprising at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol in which the alkyl group contains 4 to 20 carbon atoms; (b) at least 5 parts by weight of at least one copolymerizable polar comohomer having a strong hydrogen bonding capability selected from an acid, an amide, an anhydride, or a lactam, the sum of (a) and (b) amounting to 100 parts by weight; and (B) 1 to 75 parts by weight, per 100 parts by weight of the sum of components (a) and (b), of a tackifier; said tackifier comprising a water white, hydrogenated resin produced from a hydrocarbon feedstock containing at least 50 percent vinyl aromatic monomer and from 0 to 40 percent by weight of olefin chain transfer agents, said tackifier having: (i) a retained aromaticity on a weight percent of monomers in the feedstock basis of 80 to 95 percent; (ii) a softening point of 65 DEG to 120 DEG C.; (iii) a Mz of less than 1800; (iv) no molecular weight fractions above 7000; and (v) a polydispersity of less than 2.5, wherein said starting materials (a) and (b) are substantially solvent free.
Inventors:
Ebraz, Albert Eye.
Pargett, Mark Dee.
Monciro Beach, Bradley S.
Pargett, Mark Dee.
Monciro Beach, Bradley S.
Application Number:
JP53179996A
Publication Date:
September 24, 2008
Filing Date:
April 09, 1996
Export Citation:
Assignee:
3M COMPANY
International Classes:
C09J125/00; C09J4/02; C09J7/02; C09J123/00; C09J133/06; C09J151/06
Domestic Patent References:
| JP64060677A | ||||
| JP63308079A | ||||
| JP64066280A | ||||
| JP8500138A |
Foreign References:
| WO1996005248A1 |
Attorney, Agent or Firm:
Takashi Ishida
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama