US2715066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air curing of sheet material containing synthetic elastomers
Assignee: Armstrong World Industries Inc
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Filing: 1951-12-14
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Granted: 1955-08-09
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Expires: 1971-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jr David A Feigley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:27
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08K; C08K5/00; C08K5/55; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/006; C08J2309/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD OF PRODUCING SHEET MATERIAL CONTAINING RUBBERLIKE POLYMERS AND POSSESSING UNIFORM CHARACTERISTICS INCLUDING RESILIENCE AND FLEXIBILITY, WHICH COMPRISES ADMIXING DI-ORTHO-TOLYL-GUANIDINE SALT OF DI-CATECHOL-BORATE WITH A RUBBERLIKE BUTADIENE POLYMER WHICH POSSESSES RESIDUAL DOUBLE BONDS AFTER POLYMERIZATION, DISPERSING THE RESULTING MATERIAL OVER A FINELY DIVIDED FILLER IN SUCH A MANNER AS TO PROVIDE A POROUS MASS THROUGH WHICH AIR MAY PASS, AND HEATING THE RESULTING MATERIAL IN AIR AT AN ELEVATED TEMPERATURE.
Claim 2
Independent Claim
71 words
A METHOD OF PRODUCING SHEET MATERIAL CONTAINING RUBBERLIKE POLYMERS AND POSSESSING UNIFORM CHARACTERISTICS INCLUDING RESILIENCE AND FLEXIBILITY, WHICH COMPRISES ADMIXING DI-ORTHO-TOLYL-GUANIDINE SALT OF DI-CATECHOL-BORATE WITH A RUBBERLIKE BUTADIENE POLYMER WHICH POSSESSES RESIDUAL DOUBLE BONDS AFTER POLYMERIZATION, DISPERSING THE RESULTING MATERIAL OVER A FINELY DIVIDED FILLER IN SUCH A MANNER AS TO PROVIDE A POROUS MASS THROUGH WHICH AIR MAY PASS, AND HEATING THE RESULTING MATERIAL IN AIR AT AN ELEVATED TEMPERATURE.
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) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |