US4199642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low flame-response polyester fiberfill blends
Assignee: EIDP Inc
•
Filing: 1977-05-05
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Granted: 1980-04-22
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Expires: 1997-05-05
Abstract
Abstract The horizontal burning rate of polyester fiberfill coated with cured polysiloxane and/or bonded with a synthetic resin is reduced by incorporating small amounts (2 to 20% by weight) of a synthetic organic filamentary material that maintains its physical integrity when exposed to a small flame. The preferred material is poly(p-phenylene terephthalamide). This has particular application to silicone-slickened polyester staple fibers used for fiberfill, and articles therefrom, but has application also to silicone-slickened polyester filler tow, to resin-bonded polyester staple fiber batts, whether silicone-slickened or not, and to resin-bonded polyester filler tow.
Inventors
- 👤 John L. Cooper
- 👤 James A. Newnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:20
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/443; D04; D04H; D04H1/00; D04H1/02; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2962; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/60; Y10T442/603; Y10T442/607; Y10T442/69; Y10T442/692; Y10T442/696
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
45 words
An intimate blend comprising, by weight, about 80 to 98% of polyester fiberfill and about 2 to 20% of synthetic organic filamentary material that maintains its physical integrity when exposed to the flame from a burning match, wherein the polyester has a cured polysiloxane coating.
Claim 2
Dependent Claim
45 words
An intimate blend comprising, by weight, about 80 to 98% of polyester fiberfill and about 2 to 20% of synthetic organic filamentary material that maintains its physical integrity when exposed to the flame from a burning match, wherein the polyester has a cured polysiloxane coating.
Claim 3
Dependent Claim
16 words
A blend according to claim 1, wherein the said synthetic organic filamentary material is poly(p-phenylene terephthalamide).
Claim 4
Dependent Claim
26 words
A blend according to claim 1, wherein the polyester fiberfill and the said organic filamentary material are in the form of a tow of continuous filaments.
Claim 5
Dependent Claim
16 words
A blend according to claim 3, wherein the said synthetic organic filamentary material is flame-retardant rayon.
Claim 6
Dependent Claim
21 words
A blend according to claim 3, wherein the said synthetic organic filamentary material is a phenolic fiber of a novolac resin.
Claim 7
Dependent Claim
16 words
A blend according to claim 3, wherein the said synthetic organic filamentary material is poly(m-phenylene isophthalamide).
Claim 8
Dependent Claim
15 words
A blend according to claim 1, wherein the said synthetic organic filamentary material is poly(benzimidazole).
Claim 9
Dependent Claim
9 words
A batt comprising a blend according to claim 1.
Claim 10
Dependent Claim
18 words
A batt according to claim 8, wherein the blend has been bonded with a synthetic resin bonding agent.
Claim 11
Dependent Claim
52 words
A batt comprising an intimate blend of, by weight, about 80 to 98% of polyester fiberfill and about 2 to 20% of synthetic organic filamentary material that maintains its physical integrity when exposed to the flame from a burning match, wherein the batt has been bonded with a synthetic resin bonding agent.
Claim 12
Dependent Claim
52 words
A batt comprising an intimate blend of, by weight, about 80 to 98% of polyester fiberfill and about 2 to 20% of synthetic organic filamentary material that maintains its physical integrity when exposed to the flame from a burning match, wherein the batt has been bonded with a synthetic resin bonding agent.
Claim 13
Dependent Claim
16 words
A batt according to claim 10, wherein the said synthetic organic filamentary material is poly(p-phenylene terephthalamide).
Claim 14
Dependent Claim
16 words
A batt according to claim 10, wherein the said synthetic organic filamentary material is flame-retardant rayon.
Claim 15
Dependent Claim
21 words
A batt according to claim 10, wherein the said synthetic organic filamentary material is a phenolic fiber of a novolac resin.
Claim 16
Dependent Claim
16 words
A batt according to claim 10, wherein the said synthetic organic filamentary material is poly(m-phenylene isophthalamide).
Claim 17
Dependent Claim
15 words
A batt according to claim 10, wherein the said synthetic organic filamentary material is poly(benzimidazole).
Claim 18
Dependent Claim
26 words
A batt according to claim 10, wherein the polyester fiberfill and the said organic filamentary material are in the form of a tow of continuous filaments.
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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) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |