US4040371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxane coated polyester fibers blended with other fibers to obtain fibrous mass having more acceptable flame resistance than a mass of unblended polysiloxane coated fibers
Assignee: EIDP Inc
•
Filing: 1976-03-29
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Granted: 1977-08-09
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Expires: 1996-03-29
Abstract
Abstract The horizontal burning rate of polyester staple fibers coated with cured polysiloxane is reduced by incorporating small amounts (2 to 20% by weight) of an organic staple fiber that maintains its physical integrity when exposed to a small flame. The preferred fiber is poly(p-phenylene terephthalamide). This has particular application to polyester fiberfill, and articles therefrom.
Inventors
- 👤 John LaMonte Cooper
- 👤 James Alvis Newnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4326; D04H1/435; D04H1/4382; D04H1/43825; D04H1/43828; D04H1/43835; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S57/00; Y10S57/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24537; Y10T428/24612; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2909; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/60; Y10T442/608; Y10T442/609; Y10T442/612; Y10T442/627; Y10T442/635; Y10T442/636; Y10T442/69; Y10T442/692
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
45 words
An intimate blend of staple fibers comprising by weight about 80 to 98% of polyester staple fibers having a cured polysiloxane coating and about 2 to 20% of organic staple fibers that maintain their physical integrity when exposed to the flame from a burning match.
Claim 2
Dependent Claim
45 words
An intimate blend of staple fibers comprising by weight about 80 to 98% of polyester staple fibers having a cured polysiloxane coating and about 2 to 20% of organic staple fibers that maintain their physical integrity when exposed to the flame from a burning match.
Claim 3
Dependent Claim
15 words
A blend according to claim 1, wherein the said organic staple fiber is poly(p-phenylene terephthalamide).
Claim 4
Dependent Claim
15 words
A blend according to claim 1, wherein the said organic staple fiber is flame-retardant rayon.
Claim 5
Dependent Claim
20 words
A blend according to claim 1, wherein the said organic staple fiber is a phenolic fiber of a novolac resin.
Claim 6
Dependent Claim
14 words
A blend according to claim 1, wherein the said organic staple fiber is cotton.
Claim 7
Dependent Claim
15 words
A blend according to claim 1, wherein the said organic staple fiber is poly(m-phenylene isophthalamide).
Claim 8
Dependent Claim
9 words
A batt comprising a blend according to claim 1.
Claim 9
Dependent Claim
10 words
A quilted composite comprising a blend according to claim 1.
Claim 10
Dependent Claim
9 words
A fabric comprising a blend according to claim 1.
References Cited (Backward Citations)
US3271189A
Cited
US3454422A
Cited
US3628995A
Cited
USB378760I5
Cited
US4001477A
Cited
US3870590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |