US3987002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition
Assignee: Gulf Research and Development Co
•
Filing: 1975-07-29
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Granted: 1976-10-19
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Expires: 1995-07-29
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 |