US3923722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition
Assignee: Gulf Research and Development Co
•
Filing: 1974-03-29
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Granted: 1975-12-02
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Expires: 1994-03-29
Abstract
Abstract An adhesive composition consisting essentially of a styrenebutadiene block copolymer, a tackifier, calcium carbonate and a hydrocarbon solvent.
Inventors
- 👤 Pallavoor R Lakshmanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
C; C09; C09J; C09J145/00; C09J145/02; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08L; C08L45/00; C08L45/02; C08L53/00; C08L53/02; C08L57/00; C09J153/00; C09J153/02; C08L2666/00; C08L2666/02; C08L2666/54
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
43 words
AN ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF A STYRENE-BUTADIENE BLOCK COPOLYMER, A TACKIFIER, CALCIUM CARBONATE AND A SOLVENT WHEREIN THE COMPONENTS THEREOF ARE PRESENT IN THE FOLLOWING RANGES, ASSUMING THE PRESENCE OF 100 PARTS BY WEIGHT OF THE STYRENE-BUTADIENE COMPONENT IN THE FINAL COMPOSITION:
Claim 2
Dependent Claim
43 words
AN ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF A STYRENE-BUTADIENE BLOCK COPOLYMER, A TACKIFIER, CALCIUM CARBONATE AND A SOLVENT WHEREIN THE COMPONENTS THEREOF ARE PRESENT IN THE FOLLOWING RANGES, ASSUMING THE PRESENCE OF 100 PARTS BY WEIGHT OF THE STYRENE-BUTADIENE COMPONENT IN THE FINAL COMPOSITION:
Claim 3
Dependent Claim
31 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 component in the final composition:
Claim 4
Dependent Claim
27 words
The composition of claim 1 wherein the total of the terminal blocks A amount to about 20 to about 80 weight per cent of the block copolymer.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein the total of the terminal blocks A amount to about 23 to about 50 weight per cent of the 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
10 words
The composition of claim 1 wherein the solvent is toluene.
References Cited (Backward Citations)
US3538031A
Cited
US3658740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |