US4053678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber tow for stuffing purposes and process for producing it
Assignee: Hoechst AG
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Filing: 1975-10-14
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Granted: 1977-10-11
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Expires: 1995-10-14
Abstract
Abstract A crimped fiber tow for stuffing purposes containing an ionic antistatic agent, at least one conditioning agent consisting essentially of a methyl hydrogeno polysiloxane, an alpha, omega hydroxy dimethyl polysiloxane, an emulsifier for the polysiloxanes, an Sn (II) salt of a fatty acid and high molecular weight polyethylene. The stuffing fibers are distinguished by the same soft and smooth feel as known from downs; they are more over easily displaceable one against the other and resume their bulkiness by being shaken up. The fiber tow and the fiber are therefore excellently suitable for stuffing cushions, quilts and upholstery goods.
Inventors
- 👤 Helmut Betz
- 👤 Geza Hidasi
- 👤 Hans-Otto Vom Orde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:08
CPC Classifications
D; D01; D01D; D01D11/00; D02; D02G; D02G1/00; D02G1/12; D02G1/127; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2933; Y10T428/2962; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A drawn, crimped and fixed fiber tow of synthetic high polymer fibers having an individual capillary titer of from 3 to 40 dtex, an ionic antistatic agent and 0.2 - 1% by weight of the fibers of the non-aqueous constituents of a conditioning agent consisting essentially of 0.1 - 0.4% by weight of a methyl hydrogeno polysiloxane having a viscosity of 25 - 35 cP at 20° C., 0.2 - 0.8% by weight of an alpha, omega-hydroxy dimethyl polysiloxane of a viscosity of 600 - 1,000 cP at 20° C., 0.02 - 0.1% by weight of an emulsifier for the polysiloxanes, 0.01 - 0.5% by weight of an Sn(II) salt of a fatty acid having 8 - 18 carbon atoms and 40 - 95% of high molecular weight polyethylene.
Claim 2
Dependent Claim
129 words
A drawn, crimped and fixed fiber tow of synthetic high polymer fibers having an individual capillary titer of from 3 to 40 dtex, an ionic antistatic agent and 0.2 - 1% by weight of the fibers of the non-aqueous constituents of a conditioning agent consisting essentially of 0.1 - 0.4% by weight of a methyl hydrogeno polysiloxane having a viscosity of 25 - 35 cP at 20° C., 0.2 - 0.8% by weight of an alpha, omega-hydroxy dimethyl polysiloxane of a viscosity of 600 - 1,000 cP at 20° C., 0.02 - 0.1% by weight of an emulsifier for the polysiloxanes, 0.01 - 0.5% by weight of an Sn(II) salt of a fatty acid having 8 - 18 carbon atoms and 40 - 95% of high molecular weight polyethylene.
Claim 3
Dependent Claim
181 words
A drawn, crimped and fixed fiber tow of synthetic high polymer fibers having an individual capillary titer of from 3 to 40 dtex, impregnated with (1) an aqueous conditioning agent A1 containing 0.05 - 0.3% by weight of an anionic antistatic agent to an aqueous pick-up of a weight increase of 15 - 25%, and impregnated with (2) an aqueous conditioning agent A2 comprising 0.1 - 0.4% by weight of a methyl hydrogeno polysiloxane having a viscosity of 25 - 35 cP at 20° C., 0.2 - 0.8% by weight of an alpha, omega-hydroxy dimethyl polysiloxane of a viscosity of 600 - 1,000 cP at 20° C., 0.02 - 0.1% by weight of an emulsifier for the polysilxoanes, and 0.01 - 0.5% by weight of an Sn(II) salt of a fatty acid having 8 - 18 carbon atoms, at least one of said aqueous conditioning agents A1 and A2 containing 40 - 95% of high molecular weight polyethylene, said fiber tow containing by weight thereof 0.2 - 1% of the total amount of the non-aqueous constituents of said conditioning agent A2.
Claim 4
Dependent Claim
181 words
A drawn, crimped and fixed fiber tow of synthetic high polymer fibers having an individual capillary titer of from 3 to 40 dtex, impregnated with (1) an aqueous conditioning agent A1 containing 0.05 - 0.3% by weight of an anionic antistatic agent to an aqueous pick-up of a weight increase of 15 - 25%, and impregnated with (2) an aqueous conditioning agent A2 comprising 0.1 - 0.4% by weight of a methyl hydrogeno polysiloxane having a viscosity of 25 - 35 cP at 20° C., 0.2 - 0.8% by weight of an alpha, omega-hydroxy dimethyl polysiloxane of a viscosity of 600 - 1,000 cP at 20° C., 0.02 - 0.1% by weight of an emulsifier for the polysilxoanes, and 0.01 - 0.5% by weight of an Sn(II) salt of a fatty acid having 8 - 18 carbon atoms, at least one of said aqueous conditioning agents A1 and A2 containing 40 - 95% of high molecular weight polyethylene, said fiber tow containing by weight thereof 0.2 - 1% of the total amount of the non-aqueous constituents of said conditioning agent A2.
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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) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |