US4666764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic polyester fabric having water repellency
Assignee: Teijin Ltd
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Filing: 1986-02-24
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Granted: 1987-05-19
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Expires: 2006-02-24
Abstract
Abstract An antistatic polyester fabric having a water repellency, which comprises a woven or knitted fabric comprising a fiber of a modified polyester composed mainly of a polyester and blended with an antistatic agent, at least the surface of which is covered with a fluorine type water and oil-repellency agent.
Inventors
- 👤 Shigenobu Kobayashi
- 👤 Fumiki Takabayashi
- 👤 Setsuo Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:25
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
46 words
An antistatic polyester fabric having a water repellency, which comprises a fabric comprising a fiber of a modified polyester composed mainly of a polyester and blended with an antistatic agent, at least the surface of which is covered with a fluorine type water and oil-repellency agent.
Claim 2
Dependent Claim
46 words
An antistatic polyester fabric having a water repellency, which comprises a fabric comprising a fiber of a modified polyester composed mainly of a polyester and blended with an antistatic agent, at least the surface of which is covered with a fluorine type water and oil-repellency agent.
Claim 3
Dependent Claim
40 words
A fabric as set forth in claim 1, wherein the antistatic agent comprises a polyoxyalkylene having no substantial reactivity with the polyester and an ionic antistatic agent, and the content of the antistatic agent is at most 3% by weight.
Claim 4
Dependent Claim
23 words
A fabric as set forth in claim 1, wherein the modified polyester fiber has a hollow portion continuous in the longitudinal direction thereof.
Claim 5
Dependent Claim
25 words
A fabric as set forth in claim 3, wherein the antistatic agent is dispersed at a high concentration in a portion surrounding said hollow portion.
Claim 6
Dependent Claim
22 words
A fabric as set forth in claim 1, wherein said fabric comprises the modified polyester fiber in combination with an ultra-fine fiber.
Claim 7
Dependent Claim
35 words
A fabric as set forth in claim 5, wherein the modified polyester fiber is combined with the ultra-fine fiber by forming a mixed yarn of a modified polyester multifilament yarn and an ultra-fine multifilament yarn.
Claim 8
Dependent Claim
27 words
A fabric as set forth in claim 5, wherein the modified polyester fiber is combined with the ultra-fine fiber by forming a mixed woven or knitted fabric.
Claim 9
Dependent Claim
29 words
A fabric as set forth in claim 1, wherein said fabric comprises the modified polyester fiber in combination with a staple fiber in the form of a spun yarn.
Claim 10
Dependent Claim
16 words
A fabric as set forth in claim 8, wherein said staple fiber comprises an ultra-fine fiber.
References Cited (Backward Citations)
US4605587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |