US2976204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions, methods of employing them, and laminated structures made therefrom
Assignee: Rohm and Haas Co
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Filing: 1957-09-06
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Granted: 1961-03-21
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Expires: 1977-09-06
Abstract
No abstract record available.
Inventors
- 👤 Harold C Young
- 👤 Walter W Toy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:47
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; B; B32; B32B; B32B27/00; C09J2301/00; C09J2301/30; C09J2301/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN AQUEOUS ADHESIVE COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF POLYMERIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF A WATER-INSOLUBLE LINEAR COPOLYMER, AND SALTS THEREOF, OF ABOUT 5 TO 10% BY WEIGHT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND CROTONIC ACID, ABOUT 3 TO 25% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF METHYL METHACRYLATE AND ACRYLONITRILE, AND THE BALANCE OF AT LEAST ONE ESTER OF ACRYLIC ACID WITH AN ALCOHOL HAVING 1 TO 18 CARBON ATOMS, THE COPOLYMER HAVING A TI BETWEEN -15*C. AND +15*C. AND A VISCOSITY AVERAGE MOLECULAR WEIGHT BETWEEN 50,000 AND 250,000, THE SALT BEING SELECTED FROM THE GROUP CONSISTING OF THOSE OF AMMONIUM AND ALKALI METALS, AND THOSE FORMED WITH A WATER-SOLUBLE AMINE, THE DISPERSION CONTAINING 30 TO 55% BY WEIGHT OF WATER AND AT LEAST 30% BY WEIGHT OF THE COPOLYMER, SAID PORTIONS BEING BASED ON THE TOTAL WEIGHT OF THE COMPOSITION EXCLUDING ANY FILLERS AND PIGMENTS THAT MAY BE PRESENT.
Claim 2
Dependent Claim
166 words
AN AQUEOUS ADHESIVE COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF POLYMERIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF A WATER-INSOLUBLE LINEAR COPOLYMER, AND SALTS THEREOF, OF ABOUT 5 TO 10% BY WEIGHT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, AND CROTONIC ACID, ABOUT 3 TO 25% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF METHYL METHACRYLATE AND ACRYLONITRILE, AND THE BALANCE OF AT LEAST ONE ESTER OF ACRYLIC ACID WITH AN ALCOHOL HAVING 1 TO 18 CARBON ATOMS, THE COPOLYMER HAVING A TI BETWEEN -15*C. AND +15*C. AND A VISCOSITY AVERAGE MOLECULAR WEIGHT BETWEEN 50,000 AND 250,000, THE SALT BEING SELECTED FROM THE GROUP CONSISTING OF THOSE OF AMMONIUM AND ALKALI METALS, AND THOSE FORMED WITH A WATER-SOLUBLE AMINE, THE DISPERSION CONTAINING 30 TO 55% BY WEIGHT OF WATER AND AT LEAST 30% BY WEIGHT OF THE COPOLYMER, SAID PORTIONS BEING BASED ON THE TOTAL WEIGHT OF THE COMPOSITION EXCLUDING ANY FILLERS AND PIGMENTS THAT MAY BE PRESENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |