US4324720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant-bearing fibers and lubricant compositions therefor
Assignee: Dow Silicones Corp
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Filing: 1980-09-22
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Granted: 1982-04-13
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Expires: 2000-09-22
Abstract
Abstract Fiber lubricant compositions having unusual lubricating properties for spunbonded, nonwoven polypropylene carpet backing are disclosed. A needle-tufted carpet, prepared from a carpet backing bearing a composition of this invention, has unexpectedly high strength and unexpectedly low flammability. The compositions of this invention comprising a mixture of butyl stearate and certain silicone-glycol copolymers, are useful as a lubricant for synthetic fibers, in general.
Inventors
- 👤 Terence J. Swihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647; D06M7/00; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/647; Y10T442/681
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
93 words
A composition consisting essentially of (a) 1.0 part by weight of a silicone-glycol copolymer having the formula (CH.sub.3).sub.3 SiO{(CH.sub.3).sub.2 SiO}.sub.x {(CH.sub.3)(G)SiO}.sub.y Si(CH.sub.3).sub.3 wherein G denotes a silicon-bonded radical of the formula --R(OC 3 H 6 ) z OH, R denotes an alkylene radical containing from 1 to 18 carbon atoms, x has an average value of from 40 to 90, y has an average value of from 1 to 10, and z has an average value of from 1 to 10, and (b) from 1.0 to 9.0 parts by weight of butyl stearate.
Claim 2
Dependent Claim
93 words
A composition consisting essentially of (a) 1.0 part by weight of a silicone-glycol copolymer having the formula (CH.sub.3).sub.3 SiO{(CH.sub.3).sub.2 SiO}.sub.x {(CH.sub.3)(G)SiO}.sub.y Si(CH.sub.3).sub.3 wherein G denotes a silicon-bonded radical of the formula --R(OC 3 H 6 ) z OH, R denotes an alkylene radical containing from 1 to 18 carbon atoms, x has an average value of from 40 to 90, y has an average value of from 1 to 10, and z has an average value of from 1 to 10, and (b) from 1.0 to 9.0 parts by weight of butyl stearate.
Claim 3
Dependent Claim
44 words
A composition as defined in claim 1 wherein R contains from 3 to 6 carbon atoms, x has an average value from 50 to 75, y has an average value from 1 to 5, and z has an average value from 1 to 5.
Claim 4
Dependent Claim
38 words
A composition as defined in claim 2 wherein R contains 3 carbon atoms, x has an average value of about 67, y has an average value of about 3, and z has an average value of about 2.5.
Claim 5
Dependent Claim
15 words
A spunbonded nonwoven fabric having thereon a composition defined by claims 1, 2 or 3.
Claim 6
Dependent Claim
20 words
A fabric as defined by claim 4 which is selected from the group consisting of polyester fabrics and polyolefin fabrics.
Claim 7
Dependent Claim
12 words
A fabric as defined by claim 5 which is a polyolefin fabric.
Claim 8
Dependent Claim
21 words
A polyolefin fabric as defined by claim 6 which is selected from the group consisting of polyethylene fabrics and polypropylene fabrics.
Claim 9
Dependent Claim
13 words
A polyolefin fabric as defined by claim 7 which is a polyethylene fabric.
Claim 10
Dependent Claim
13 words
A polyolefin fabric as defined by claim 7 which is a polypropylene fabric.
Claim 11
Dependent Claim
15 words
A polypropylene fabric as defined by claim 9 which is a spunbonded nonwoven carpet backing.
Claim 12
Dependent Claim
32 words
A carpet backing as defined by claim 10 which has thereon from 0.05 to 0.5 parts by weight of the silicone-glycol copolymer for every 100 parts by weight of the carpet backing.
Claim 13
Dependent Claim
14 words
A synthetic fiber having thereon a composition defined by claims 1, 2 or 3.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |