US3281258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for gelling frothed rubber latices on fabrics
Assignee: Textile Rubber & Chem Co
•
Filing: 1965-02-03
•
Granted: 1966-10-25
•
Expires: 1985-02-03
Abstract
No abstract record available.
Inventors
- 👤 Francis G Callahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:01
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0073; D06N7/0086; C08J2321/00; D06N2205/00; D06N2205/04; D06N2205/045; D06N2207/00; D06N2207/04; D06N2209/00; D06N2209/10; D06N2209/106; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
1. A METHOD OF PREPARING A GELLED FOAM LATEX COATED FIBROUS SHEET MATERIAL WHICH METHOD COMPRISES: APPLYING A LAYER OF A HEAT-GELLABLE FROTHED LATEX COMPOSITION ONTO ONE SURFACE OF A FIBROUS SHEET MATERIAL; APPLYING LIVE STEAM AGAINST THE UNCOATED SURFACE OF SAID LATEX COATED FIBROUS SHEET MATERIAL, THE LIVE STEAM UNDER SUFFICIENT PRESSURE TO CONTACT THE SURFACE OF SAID SHEET MATERIAL AND TO CAUSE THE RAPID PROGRESSIVE GELLATION OF THE LATEX LAYER FROM SAID ONE SURFACE OF THE FIBROUS SHEET TOWARD THE UPPER SURFACE OF THE LATEX COATING; AND DRYING AND CURING THE GELLED LATEX LAYER.
Claim 2
Dependent Claim
96 words
1. A METHOD OF PREPARING A GELLED FOAM LATEX COATED FIBROUS SHEET MATERIAL WHICH METHOD COMPRISES: APPLYING A LAYER OF A HEAT-GELLABLE FROTHED LATEX COMPOSITION ONTO ONE SURFACE OF A FIBROUS SHEET MATERIAL; APPLYING LIVE STEAM AGAINST THE UNCOATED SURFACE OF SAID LATEX COATED FIBROUS SHEET MATERIAL, THE LIVE STEAM UNDER SUFFICIENT PRESSURE TO CONTACT THE SURFACE OF SAID SHEET MATERIAL AND TO CAUSE THE RAPID PROGRESSIVE GELLATION OF THE LATEX LAYER FROM SAID ONE SURFACE OF THE FIBROUS SHEET TOWARD THE UPPER SURFACE OF THE LATEX COATING; AND DRYING AND CURING THE GELLED LATEX LAYER.
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |