Patent US4639176A successfully refreshed from Google Patents.
Patent US3923718A successfully refreshed from Google Patents.
US3923718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Styrene-butadiene adhesive composition in the form of an aqueous dispersion
Assignee: Rhone Progil SA
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Filing: 1973-09-17
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Granted: 1975-12-02
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Expires: 1993-09-17
Abstract
Abstract The invention is addressed to an adhesive composition in the form of an aqueous dispersion which, in the form of a thin film, can resist exposure to air over a period of time without losing its adhesiveness and which can be employed under high temperature conditions. The adhesive composition comprises a 20% to 85%, by weight, aqueous dispersion in which the dry solids is formulated of 90% to 10% by weight fine mineral particles and 10% to 90% by weight of a mixture of styrene and butadiene copolymer and a hydrosoluble water retainer.
Inventors
- 👤 Rene Arpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:44
CPC Classifications
C; C09; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C09J125/10; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/30; C08L; C08L101/00; C08L9/00; C08L9/06; C09J109/00; C09J109/06; C09J109/08; C09J157/00; C08L2666/00; C08L2666/02; C08L2666/28; C08L2666/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
AN ADHESIVE COMPOSITION IN THE FORM OF A 20-85% BY WEIGHT AQUEOUS DISPERSION CONTAINING, ON THE SOLIDS BASIS, 90-10% BY WEIGHT MINERAL PARTICLES HAVING A DIMENSION WITHIN THE RANGE OF 0.1-120 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM AND BARIUM SULPHATES AND CARBONATES, 10-90% BY WEIGHT OF A MIXTURE OF STYRENE AND BUTADIENE COPOLYMER IN THE FORM OF PARTICLES DIMENSIONED WITHIN THE RANGE OF 0.05-10 MICRONS AND OF AT LEAST ONE HYDROSOLUBLE WATER RETAINER SELECTED FROM THE GROUP CONSISTING OF ALKALINE METAL POLYACRYLATES, HYDROXY ALKYL CELLULOSE, CARBOXYMETHYL EHTYL CELLULOSE, POLYVINYL ALCOHOL AND AN ALGINATE, IN WHICH THE HYDROSOLUBLE WATER RETAINER IS PRESENT IN THE RATIO OF 1-10 PARTS BY WEIGHT OF THE HYDROSOLUBLE WATER RETAINER TO 15 PARTS BY WEIGHT OF THE COPOLYMER.
Claim 2
Dependent Claim
126 words
AN ADHESIVE COMPOSITION IN THE FORM OF A 20-85% BY WEIGHT AQUEOUS DISPERSION CONTAINING, ON THE SOLIDS BASIS, 90-10% BY WEIGHT MINERAL PARTICLES HAVING A DIMENSION WITHIN THE RANGE OF 0.1-120 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM AND BARIUM SULPHATES AND CARBONATES, 10-90% BY WEIGHT OF A MIXTURE OF STYRENE AND BUTADIENE COPOLYMER IN THE FORM OF PARTICLES DIMENSIONED WITHIN THE RANGE OF 0.05-10 MICRONS AND OF AT LEAST ONE HYDROSOLUBLE WATER RETAINER SELECTED FROM THE GROUP CONSISTING OF ALKALINE METAL POLYACRYLATES, HYDROXY ALKYL CELLULOSE, CARBOXYMETHYL EHTYL CELLULOSE, POLYVINYL ALCOHOL AND AN ALGINATE, IN WHICH THE HYDROSOLUBLE WATER RETAINER IS PRESENT IN THE RATIO OF 1-10 PARTS BY WEIGHT OF THE HYDROSOLUBLE WATER RETAINER TO 15 PARTS BY WEIGHT OF THE COPOLYMER.
Claim 3
Dependent Claim
18 words
An adhesive composition as claimed in claim 1 in which the hydrosoluble retainer is an alkaline metal polyacrylate.
Claim 4
Dependent Claim
36 words
An adhesive composition as claimed in claim 1 in which the hydrosoluble water retainer is a hydroxy alkyl cellulose selected from the group consisting of hydroxy ethyl cellulose, hydroxy propyl cellulose, and hydroxy methyl ethyl cellulose.
Claim 5
Dependent Claim
28 words
An adhesive composition as claimed in claim 2 in which the alkaline metal polyacrylate to the styrene-butadiene copolymer is in the weight ratio within the range of 1:10-2:10.
Claim 6
Dependent Claim
24 words
An adhesive composition as claimed in claim 1 in which the amount of styrene in the styrene-butadiene copolymer is within the range of 40-75%.
References Cited (Backward Citations)
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 |