US3050425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-tack polymeric adhesive for fibrous laminae
Assignee: Rohm and Haas Co
•
Filing: 1959-03-25
•
Granted: 1962-08-21
•
Expires: 1979-03-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles A Carr
- 👤 Louis E Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/062; C09J133/064; B; B32; B32B; B32B27/00; C09J133/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54; C08L3/00; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31765; Y10T428/31971; Y10T428/31975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A LAMINAR STRUCTURE COMPRISING AT LEAST ONE FIBROUS LAYER ADHERED TO ANOTHER SUBSTRATE BY AN ADHESIVE LAYER COMPRISING A DRIED PRODUCT OF (1) A POLYMERIC MATERIAL CONSISTING EXCLUSIVELY OF AN AMMONIUM SALT OF A COPOLYMER OF 23 TO 30% BY WEIGHT OF METHACRYLIC ACID, 20 TO 57% BY WEIGHT OF METHYL METHACRYLATE, AND 20 TO 57% BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE AND ETHYL ACRYLATE, THE SALT BEING OF LOW MOLECULAR WEIGHT SUCH THAT ITS VISCOSITY IN WATER AT 25*C. AND 10% CONCENTRATION IS BETWEEN ABOUT 1.5 AND ABOUT 10 POISES AND (2) 1 TO 100% BY WEIGHT,, BASED ON THE WEIGHT OF AMMONIUM COPOLYMER SALT, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STARCH, DEXTRIN, GELATIN, GLUE, CASEIN, AND A-PORTION,
Claim 2
Dependent Claim
131 words
A LAMINAR STRUCTURE COMPRISING AT LEAST ONE FIBROUS LAYER ADHERED TO ANOTHER SUBSTRATE BY AN ADHESIVE LAYER COMPRISING A DRIED PRODUCT OF (1) A POLYMERIC MATERIAL CONSISTING EXCLUSIVELY OF AN AMMONIUM SALT OF A COPOLYMER OF 23 TO 30% BY WEIGHT OF METHACRYLIC ACID, 20 TO 57% BY WEIGHT OF METHYL METHACRYLATE, AND 20 TO 57% BY WEIGHT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE AND ETHYL ACRYLATE, THE SALT BEING OF LOW MOLECULAR WEIGHT SUCH THAT ITS VISCOSITY IN WATER AT 25*C. AND 10% CONCENTRATION IS BETWEEN ABOUT 1.5 AND ABOUT 10 POISES AND (2) 1 TO 100% BY WEIGHT,, BASED ON THE WEIGHT OF AMMONIUM COPOLYMER SALT, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STARCH, DEXTRIN, GELATIN, GLUE, CASEIN, AND A-PORTION,
References Cited (Backward Citations)
US2795564A
Cited
US2765229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |