US3775150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating polyester filaments and resultant product
Assignee: Celanese Corp
•
Filing: 1972-04-20
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Granted: 1973-11-27
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Expires: 1992-04-20
Abstract
Abstract A process for producing an adhesive activated polyester reinforcing element and the product produced thereby, the process comprising disposing an uncured epoxy resin coating on essentially undrawn polyester fialents, drawing said filaments at least 1.2 times their length and then coating with a resorcinolformaldehyde latex dip wherein the formaldehyde to resorcinol mole ratios are from 1.2:1 to 2:1. The resultant product is found to have improved adhesion for rubber.
Inventors
- 👤 E Mcclary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:34
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31511; Y10T428/31515
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
11 words
The method of claim 1 wherein said polyester is polyethylene terephthalate.
Claim 2
Dependent Claim
16 words
The method of claim 1 wherein said latex contains up to about 30 percent vinyl pyridine.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said epoxy resin is an epoxy resin having more than one epoxide group per molecule.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein the formaldehyde to resorcinol mole ratio is from 1.2:1 to 1.8:1.
Claim 5
Dependent Claim
11 words
The coated product produced according to the process of claim 13.
Claim 6
Dependent Claim
11 words
The product of claim 6 wherein said polyester is polyethylene terephthalate.
Claim 7
Dependent Claim
16 words
The product of claim 6 wherein said latex contains up to about 30 percent vinyl pyridine.
Claim 8
Dependent Claim
21 words
The product of claim 6 wherein said epoxy resin is an epoxy resin having more than one epoxide group per molecule.
Claim 9
Dependent Claim
22 words
The product of claim 6 wherein the mole ratio of formaldehyde to resorcinol is in the range of from 1.2:1 to 1.8:
Claim 10
Dependent Claim
13 words
The product of claim 6 wherein said polyester filaments are embedded in rubber.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |