US4044189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treated polyester substrates
Assignee: Celanese Corp
•
Filing: 1972-09-07
•
Granted: 1977-08-23
•
Expires: 1992-09-07
Abstract
Abstract A textile or textile-like polyester element having improved adhesion to rubber and being characterized by a high surface energy, a chemically unmodified surface and a coating which is a crystallizing agent for the polyester substrate.
Inventors
- 👤 Robert J. Arrowsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:30
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249937; Y10T428/249939; Y10T428/31504; Y10T428/31511; Y10T428/31786
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
31 words
A filament reinforced rubber article, the reinforcing filament being a polyester filament having a surface energy greater than 45 dynes per centimeter and having a surface which is substantially chemically unmodified.
Claim 2
Dependent Claim
31 words
A filament reinforced rubber article, the reinforcing filament being a polyester filament having a surface energy greater than 45 dynes per centimeter and having a surface which is substantially chemically unmodified.
Claim 3
Dependent Claim
14 words
The product of claim 1 wherein said filament has a discontinuous coating disposed thereon.
Claim 4
Dependent Claim
12 words
The product of claim 2 wherein said coating is a crystallizing agent.
Claim 5
Dependent Claim
12 words
The product of claim 2 wherein said coating is an epoxy resin.
Claim 6
Dependent Claim
16 words
The product of claim 1 wherein said surface energy is greater than 52 dynes per centimeter.
Claim 7
Dependent Claim
11 words
The product of claim 1 wherein said polyester is polyethylene terephthalate.
Claim 8
Dependent Claim
28 words
A polyester textile element adapted for the reinforcement of rubber articles, said element having a chemically unmodified surface exhibiting a surface energy greater than 45 dynes per centimeter.
Claim 9
Dependent Claim
28 words
A polyester textile element adapted for the reinforcement of rubber articles, said element having a chemically unmodified surface exhibiting a surface energy greater than 45 dynes per centimeter.
Claim 10
Dependent Claim
29 words
The textile element of claim 7, further characterized in that the said surface is generally porous wherein the pores are predominantly less than about 200 angstroms in major dimension.
Claim 11
Dependent Claim
15 words
The product of claim 7 wherein said textile element has a discontinuous coating disposed thereon.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |