US3240660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of nitrile rubbers to polyamide fibers
Assignee: Burlington Industries Inc
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Filing: 1961-07-03
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Granted: 1966-03-15
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Everett C Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:45
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2309/00; C08J2309/02; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR BONDING NYLON FIBERS TO VULCANIZABLE BUTADIENE-ACRYLONITRILE RUBBER WHICH COMPRISES FIRST IMPREGNATING SAID FIBERS WITH AN AQUEOUS PRIMER COMPOSITION CONTAINING A BASE-CATALYZED, PARTIALLY CONDENSED RESORCINOL-FORMALDEHYDE REACTION PRODUCT OBTAINED BY REACTING THE RESORCINOL AND FORMALDEHYDE IN A RATIO WITHIN THE RANGE OF 1:1.2 AND 1:2.75, AND A LATEX OF A BUTADIENEACRYLONITRILE POLYMER, CONTAINING FROM 25% TO 45% BY WEIGHT OF BOUND ACRYLONITRILE, SAID PRIMER CONSTITUTING THE SOLE BONDING MEANS AND BEING APPLIED DIRECTLY TO SAID FIBERS, THEN DRYING THE THUS IMPREGNATED FIBERS, APPLYING SAID RUBBER TO THE DRIED FIBERS AND THEN VULCANIZING THE
Claim 2
Dependent Claim
9 words
THE PRODUCT OBTAINED BY THE PROCESS OF CLAIM 2.
References Cited (Backward Citations)
USRE23451E
Cited
US2902398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |