US2681292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making pile-surfaced material
Assignee: Celanese Corp
•
Filing: 1951-11-07
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Granted: 1954-06-15
•
Expires: 1971-11-07
Abstract
No abstract record available.
Inventors
- 👤 Ewing Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:24
CPC Classifications
D; D04; D04H; D04H11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A PROCESS FOR MAKING PILE-SURFACEED MATERIAL BY CAUSING LOOSE CELLULOSE ACETATE FIBERS TO ADHERE TO AN ADHESIVE-COATED SURFACE OF A TRAVELLING WEB AND HARDENING THE ADHESIVE, THE STEPS OF COATING THE WEB WITH AN ADHESIVE HAVING A BASIS OF A SYNTHETIC RUBBER WHICH IS A COPOLYMER OF BUTADINE WITH AT LEAST 25% OF ITS WEIGHT OF ACRYLONITRILE, SAID ADHESIVE CONTAINING ALSO VULCANIZING INGREDIENTS FOR THE SYNTHETIC RUBBER TOGETHER WITH A PLASTICIZER FOR CELLULOSE ACETATE HAVING A VAPOR PRESSURE AT 150* C. OF AT LEAST 5 MM. AND A PLASTICIZER FOR THE SYNTHETIC RUBBER OF VAPOR PRESSURE NO GREATER THAN ONE FIFTH THAT OF THE FIRST-MENTIONED PLASTIZER, APPLYING THE FIBER TO THE COATED WEB, CARRYING THE WEB THROUGH A HEATED ZONE AND IN SAID ZONE VULCANIZING THE SYNTHETIC RUBBER AND EVAPORATING THE GREATER PART OF THE MOVE VOLATILE PLASTICIZER.
Claim 2
Dependent Claim
139 words
IN A PROCESS FOR MAKING PILE-SURFACEED MATERIAL BY CAUSING LOOSE CELLULOSE ACETATE FIBERS TO ADHERE TO AN ADHESIVE-COATED SURFACE OF A TRAVELLING WEB AND HARDENING THE ADHESIVE, THE STEPS OF COATING THE WEB WITH AN ADHESIVE HAVING A BASIS OF A SYNTHETIC RUBBER WHICH IS A COPOLYMER OF BUTADINE WITH AT LEAST 25% OF ITS WEIGHT OF ACRYLONITRILE, SAID ADHESIVE CONTAINING ALSO VULCANIZING INGREDIENTS FOR THE SYNTHETIC RUBBER TOGETHER WITH A PLASTICIZER FOR CELLULOSE ACETATE HAVING A VAPOR PRESSURE AT 150* C. OF AT LEAST 5 MM. AND A PLASTICIZER FOR THE SYNTHETIC RUBBER OF VAPOR PRESSURE NO GREATER THAN ONE FIFTH THAT OF THE FIRST-MENTIONED PLASTIZER, APPLYING THE FIBER TO THE COATED WEB, CARRYING THE WEB THROUGH A HEATED ZONE AND IN SAID ZONE VULCANIZING THE SYNTHETIC RUBBER AND EVAPORATING THE GREATER PART OF THE MOVE VOLATILE PLASTICIZER.
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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) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |