US2922732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-reinforced resin-bearing tissues, films or sheets, and articles obtained therefrom
Assignee: Rohm and Haas Co
•
Filing: 1956-12-11
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Granted: 1960-01-26
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Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert P Hopkins
- 👤 Harold C Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H11/00; D21H11/02; D21H11/14; D21H17/37; D21H21/00; D21H21/14; D21H21/18; D21H21/20; D21H21/26; D21H27/00; D21H27/02; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
AN ARTICLE OF MANUFACTURE COMPRISING A LAMINAR STRUCTURE COMPRISING A PRINTED PAPER SUBSTRATE AND A SUBSTANTIALLY COMPLETELY TRANSPARENT FACING LAYER ON THE POROUS SUBSTRATE, SAID FACING LAYER CONSISTING OF A FIBROUS REINFORCEMENT WITHIN A MATRIX FORMED OF A SUBSTANTIALLY CONTINUOUS FILM COMPRISING A WATER-INSOLUBLE, THERMOPLASTIC, SYNTHETIC ADDITION POLYMER HAVING A T1 OF AT LEAST 45*C. AND COMPRISING UNITS DERIVED FROM AT LEAST ONE MONOMER SELECTED FROM THE GROUP CONSISTING OF ALKYL METHACRYLATES IN WHICH THE ALKYL GROUP HAS 1 TO 4 CARBON ATOMS, T-AMYL METHACRYLATE, T-AMYL ACRYLATE, CYCLOHEXYL ACRYLATE, CYCLOHEXYL METHACRYLATE, BENZYL ACRYLATE, BENZYL METHACRYLATE, ACRYLONITRILE, METHACRYLONITRILE, STYRENE, VINYL CHLORIDE, CHLOROSTYRENE, AND P-METHYLSTYRENE, SAID REINFORCEMENT BEING FORMED FROM A FIBROUS TISSUE COMPRISING HAPHAZARDLY ARRANGED FIBERS AND HAVING A WET STRENGTH OF AT LEAST 0.04 POUND PERE INCH PER POUND OF BASIS WEIGHT, THE TOTAL WEIGHT OF FIBERS IN THE TISSUE BEING FROM 4 TO 40 POUNDS PER 500 SHEETS OF 2''X3'' DIMENSIONS, THE POLYMER BEING AT LEAST ABOUT 60% BY WEIGHT, ON THE WEIGHT OF FIBROUS REINFORCEMENT, SAID FACING LAYER HAVING A SMOOTH, GLOSSY SURFACE AND BEING RESISTANT TO MOISTURE, OIL, AND GREASE,
Claim 2
Dependent Claim
183 words
AN ARTICLE OF MANUFACTURE COMPRISING A LAMINAR STRUCTURE COMPRISING A PRINTED PAPER SUBSTRATE AND A SUBSTANTIALLY COMPLETELY TRANSPARENT FACING LAYER ON THE POROUS SUBSTRATE, SAID FACING LAYER CONSISTING OF A FIBROUS REINFORCEMENT WITHIN A MATRIX FORMED OF A SUBSTANTIALLY CONTINUOUS FILM COMPRISING A WATER-INSOLUBLE, THERMOPLASTIC, SYNTHETIC ADDITION POLYMER HAVING A T1 OF AT LEAST 45*C. AND COMPRISING UNITS DERIVED FROM AT LEAST ONE MONOMER SELECTED FROM THE GROUP CONSISTING OF ALKYL METHACRYLATES IN WHICH THE ALKYL GROUP HAS 1 TO 4 CARBON ATOMS, T-AMYL METHACRYLATE, T-AMYL ACRYLATE, CYCLOHEXYL ACRYLATE, CYCLOHEXYL METHACRYLATE, BENZYL ACRYLATE, BENZYL METHACRYLATE, ACRYLONITRILE, METHACRYLONITRILE, STYRENE, VINYL CHLORIDE, CHLOROSTYRENE, AND P-METHYLSTYRENE, SAID REINFORCEMENT BEING FORMED FROM A FIBROUS TISSUE COMPRISING HAPHAZARDLY ARRANGED FIBERS AND HAVING A WET STRENGTH OF AT LEAST 0.04 POUND PERE INCH PER POUND OF BASIS WEIGHT, THE TOTAL WEIGHT OF FIBERS IN THE TISSUE BEING FROM 4 TO 40 POUNDS PER 500 SHEETS OF 2''X3'' DIMENSIONS, THE POLYMER BEING AT LEAST ABOUT 60% BY WEIGHT, ON THE WEIGHT OF FIBROUS REINFORCEMENT, SAID FACING LAYER HAVING A SMOOTH, GLOSSY SURFACE AND BEING RESISTANT TO MOISTURE, OIL, AND GREASE,
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) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |