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US3987002A Expired / Lapsed US ⏱️ 0.0 years remaining

Adhesive composition

Assignee: Gulf Research and Development Co
•
Filing: 1975-07-29
•
Granted: 1976-10-19
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Expires: 1995-07-29
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Abstract

Abstract An adhesive composition consisting essentially of a styrene-butadiene radial block copolymer, a tackifier, calcium carbonate and an organic solvent or mixtures of organic solvents.

Inventors

  • 👤 Pallavoor R. Lakshmanan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:06
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54; Y; Y10; Y10S; Y10S525/00; Y10S525/901

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 167 words
An adhesive composition consisting essentially of a styrene-butadiene radial block copolymer, a tackifier, calcium carbonate and an organic solvent wherein the components thereof are present in the following ranges, assuming the presence of 100 parts by weight of the styrene-butadiene radial block copolymer in the final composition: ______________________________________ Component Parts by Weight ______________________________________ Tackifier 20-125 Calcium Carbonate 60-500 Solvent 85-1500 ______________________________________ , with the styrene-butadiene radial block copolymer having the following general configuration: (A-B).sub.x Y, where A is a styrene polymer b is a butadiene polymer Y is a group derived from a polyfunctional compound having at least three reactive sites and x is an integer from 3 to 5; the calcium carbonate has an average particle diameter of about 0.2×10 4 to about 50×10 4 A; and the solvents being selected from the group consisting of hydrocarbon aromatics having from six to eight carbon atoms aliphatic hydrocarbons having from six to eight carbon atoms ketones having from two to four carbon atoms and chlorinated organic solvent.
Claim 2
Dependent Claim 167 words
An adhesive composition consisting essentially of a styrene-butadiene radial block copolymer, a tackifier, calcium carbonate and an organic solvent wherein the components thereof are present in the following ranges, assuming the presence of 100 parts by weight of the styrene-butadiene radial block copolymer in the final composition: ______________________________________ Component Parts by Weight ______________________________________ Tackifier 20-125 Calcium Carbonate 60-500 Solvent 85-1500 ______________________________________ , with the styrene-butadiene radial block copolymer having the following general configuration: (A-B).sub.x Y, where A is a styrene polymer b is a butadiene polymer Y is a group derived from a polyfunctional compound having at least three reactive sites and x is an integer from 3 to 5; the calcium carbonate has an average particle diameter of about 0.2×10 4 to about 50×10 4 A; and the solvents being selected from the group consisting of hydrocarbon aromatics having from six to eight carbon atoms aliphatic hydrocarbons having from six to eight carbon atoms ketones having from two to four carbon atoms and chlorinated organic solvent.
Claim 3
Dependent Claim 47 words
The composition of claim 1 wherein the components thereof are present in the following ranges, assuming the presence of 100 parts by weight of the styrene-butadiene radial block copolymer in the final composition: ______________________________________ Component Parts by Weight ______________________________________ Tackifier 35-100 Calcium Carbonate 75-400 Solvent 100-600. ______________________________________
Claim 4
Dependent Claim 29 words
The composition of claim 1 wherein the styrene polymer will range from about five to about 60 weight per cent based on the weight of the radial block copolymer.
Claim 5
Dependent Claim 29 words
The composition of claim 1 wherein the styrene polymer will range from about 10 to about 50 weight per cent based on the weight of the radial block copolymer
Claim 6
Dependent Claim 16 words
The composition of claim 1 wherein the tackifier is a resin based on coumarone or indene.
Claim 7
Dependent Claim 12 words
The composition of claim 1 wherein the tackifier is a coumarone-indene resin.
Claim 8
Dependent Claim 19 words
The composition of claim 1 wherein the solvent is an aromatic hydrocarbon having from six to eight carbon atoms.
Claim 9
Dependent Claim 10 words
The composition of claim 1 wherein the solvent is toluene.
Claim 10
Dependent Claim 27 words
The composition of claim 1 wherein the calcium carbonate has an average diameter of about 2 × 10 4 A to about 25 × 10 4 A.

References Cited (Backward Citations)

US3932327A Cited
US3923722A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-19 1980-04-19 1980-10-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-19 1984-04-19 1984-10-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-19 1988-04-19 1988-10-19 $7700.00 Window Closed / Lapsed

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