Mounting tape
AssigneeAdhesives Research, Inc.
InventorAlfred J. Green
Life of this patent
Estimating the term…
Abstract
The adhesive coated foam laminates of the present invention comprise a polyolefin or polyvinyl chloride foam layer coated on one or more sides with a pressure sensitive adhesive which comprises: (a) a block polymer of monovinyl aromatic hydrocarbon and either a conjugated diene or ethylene-butylene; (b) at least two distinct tackifying resins; and (c) at least one oxidation stabilizer.
Claims8
A pressure sensitive adhesive laminate which initially resists a shear force of 1 kg. per 1/4 at 125.degree. F. for at least 200 hours comprising:
- (a) a foamed layer selected from the group consisting of foamed poly-.alpha.-monoolefin, a foamed copolymer of an .alpha.-monoolefin copolymerized with minor amounts of another copolymerizable momoner and formed polyvinyl resin having bonded to at least one surface thereof,
- (b) a layer of pressure sensitive adhesive comprising:
- (i) 40 to 100 parts of a block copolymer of a monovinyl aromatic hydrocarbon and a conjugated diene or ethylene-butylene,
- (ii) 30 to 80 parts of at least two distinct tackifying resins, and
- (iii) 0.5 to 20 parts of at least one oxidation stabilizer and at least one silane adhesion promoter.
A pressure sensitive adhesive laminate which initially resists a shear force of 1 kg. per 1/4 inch at 125.degree. F. for at least 200 hours comprising:
- (a) a foamed layer selected from the group consisting of foamed poly-.alpha.-monoolefin, a foamed copolymer of an .alpha.-monoolefin copolymerized with minor amounts of another copolymerizable monomer and foamed polyvinyl resin having bonded to at least one surface thereof,
- (b) a layer of pressure sensitive adhesive comprising:
- (i) 40 to 100 parts of a block copolymer of a monovinyl aromatic hydrocarbon and a conjugated diene or ethylene-butylene,
- (ii) 30 to 80 parts of a phenol-terpene tackifying resin having a softening point from about 80.degree. C. to about 150.degree. C. and at least one other tackifying resin, and
- (iii) 0.5 to 20 parts of at least one oxidation stabilizer.
A pressure sensitive adhesive laminate which initially resists a shear force of 1 kg. per 1/4 inch at 125.degree. F. for at least 200 hours comprising:
- (a) a foamed layer selected from the group consisting of a closed cell cross-linked polyethylene foam and closed cell cross-linked polyethylene copolymer foam containing a minor amount of copolymerized vinyl acetate having bonded to at least one surface thereof,
- (b) a layer of pressure sensitive adhesive comprising:
- (i) 40 to 100 parts of a block copolymer of a monovinyl aromatic hydrocarbon and butadiene,
- (ii) 30 to 80 parts of at least two distinct tackifying resins, and
- (iii) 0.5 to 20 parts of at least one oxidation stabilizer and at least one silance adhesion promoter.
Dependencies are inferred from the claim text.