Back to results
US 2010/0075132 A1Published application
Blends of block copolymer and acrylic adhesives
Assignee3M Innovative Properties Company
InventorsRobert D. Waid, Panu K. Zoller, Gregory B. Gadbois
Life of this patent
Estimating the term…
Abstract
Pressure sensitive adhesive compositions containing 92 to 99.9 parts of a block copolymer adhesive composition and 0.1 to less than 10 parts of an acrylic adhesive composition are described. Tapes including such adhesives, and methods of making such tapes are also described.
Claims23
1-53. (canceled)
A pressure sensitive adhesive composition comprising:
- (A) 92 to 99.9 parts of a block copolymer adhesive composition comprising:
- (a) a first block copolymer comprising
- (i) at least one rubbery block comprising a first polymerized conjugated diene, a hydrogenated derivative thereof, or combinations thereof;
- and
- (ii) at least one glassy block comprising a first polymerized monovinyl aromatic monomer;
- and
- (B) 0.1 to less than 8 parts of an acrylic adhesive composition comprising:
- (i) 70 to 100 parts of at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol, wherein the non-tertiary alkyl alcohol contains 4 to 20 carbon atoms;
- and
- (ii) 0 to 30 parts of a copolymerized reinforcing monomer.
7 more elements
A tape comprising a foam backing having a first major surface and a second major surface;
- and a first adhesive skin bonded to the first major surface, wherein the first adhesive skin comprises a first pressure sensitive adhesive comprising
- (A) 92 to 99.9 parts of a block copolymer adhesive composition comprising:
- (a) a first block copolymer comprising
- (i) at least one rubbery block comprising a first polymerized conjugated diene, a hydrogenated derivative thereof, or combinations thereof;
- and
- (ii) at least one glassy block comprising a first polymerized monovinyl aromatic monomer;
- and
- (B) 0.1 to less than 8 parts of an acrylic adhesive composition comprising:
- (i) 70 to 100 parts of at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol, wherein the non-tertiary alkyl alcohol contains 4 to 20 carbon atoms;
- and
- (ii) 0 to 30 parts of a copolymerized reinforcing monomer.
8 more elements
A bonded composite comprising:
- a first substrate having a first surface, wherein the first surface has a surface energy of less than 35 dyne per centimeter;
- a second substrate having a second surface;
- and
- a bonding interface between the first surface of the first substrate and the second surface of the second substrate, wherein the bonding interface comprises a pressure sensitive adhesive comprising
- (A) 92 to 99.9 parts of a block copolymer adhesive composition comprising:
- (a) a first block copolymer comprising
- (i) at least one rubbery block comprising a first polymerized conjugated diene, a hydrogenated derivative thereof, or combinations thereof;
- and
- (ii) at least one glassy block comprising a first polymerized monovinyl aromatic monomer;
- and
- (B) 0.1 to less than 8 parts of an acrylic adhesive composition comprising:
- (i) 70 to 100 parts of at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol, wherein the non-tertiary alkyl alcohol contains 4 to 20 carbon atoms;
- and
- (ii) 0 to 30 parts of a copolymerized reinforcing monomer.
11 more elements
Dependencies are inferred from the claim text.