US3098755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated rubber articles and method of producing same
Assignee: International Latex Corp
•
Filing: 1959-06-29
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Granted: 1963-07-23
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Harry J Barth
- 👤 Philip T Gay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B05; B05D; B05D1/00; B05D1/16; B05D7/00; B05D7/02; B29C41/22; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C09; C09J; C09J175/00; C09J175/04; B05D2503/00; B29K; B29K2021/00; B29K2075/00; B29L; B29L2031/00; B29L2031/48; C08J2321/00; C08J2475/00; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/23979; Y10T428/23986; Y10T428/31504; Y10T428/31551; Y10T428/31569; Y10T428/31826
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
117 words
A METHOD OF PRODUCING ADHERENT ELASTOMERIC POLYURETHANE COATINGS ON DEPOSITED LATEX RUBBER SUBSTRATES WHICH COMPRISES WATER LEACHING THE UNCURED RUBBER SURFACE, DRYING SAID WATER LEACHED SURFACE TREATING SAID LEACHED SURFACE WITH A SOLUTION OF ISOCYANATE APPLYING TO SAID SURFACE A COATING OF AN ISOCYANATE-TERMINATED PREPOLYMER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS AND POLYETHERS, SAID PREPOLYMERS BEING CURABLE TO AN ELASTOMERIC STATE, AND CURING THE PREPOLYMER WITH A NONAQUEOUS CROSS-LINKING AGENT AT A TEMPERATURE AND FOR A TIME SUFFICIENT ALSO TO CURE THE RUBBER SUBSTRATE, THE CURING AGENT BEING PRESENT IN AMOUNT TO PROVIDE A RATIO OF NCO GROUPS IN THE PREPOLYMER TO NCO-REACTIVE GROUPS IN THE CROSS-LINKING AGENT OF AT LEAST 1 AND LESS THAN 2.
Claim 2
Independent Claim
117 words
A METHOD OF PRODUCING ADHERENT ELASTOMERIC POLYURETHANE COATINGS ON DEPOSITED LATEX RUBBER SUBSTRATES WHICH COMPRISES WATER LEACHING THE UNCURED RUBBER SURFACE, DRYING SAID WATER LEACHED SURFACE TREATING SAID LEACHED SURFACE WITH A SOLUTION OF ISOCYANATE APPLYING TO SAID SURFACE A COATING OF AN ISOCYANATE-TERMINATED PREPOLYMER SELECTED FROM THE GROUP CONSISTING OF POLYESTERS AND POLYETHERS, SAID PREPOLYMERS BEING CURABLE TO AN ELASTOMERIC STATE, AND CURING THE PREPOLYMER WITH A NONAQUEOUS CROSS-LINKING AGENT AT A TEMPERATURE AND FOR A TIME SUFFICIENT ALSO TO CURE THE RUBBER SUBSTRATE, THE CURING AGENT BEING PRESENT IN AMOUNT TO PROVIDE A RATIO OF NCO GROUPS IN THE PREPOLYMER TO NCO-REACTIVE GROUPS IN THE CROSS-LINKING AGENT OF AT LEAST 1 AND LESS THAN 2.
Claim 3
Dependent Claim
25 words
A METHOD ACCORDING TO CLAIM 1 IN WHICH A FLOCK LAYER IS DEPOSITED ON THE SURFACE OF SAID PREPOLYMER COATING PRIOR TO CURING THE COATING.
References Cited (Backward Citations)
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |