US3896032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diorganopolysiloxane-based lubricant for organic fibers
Assignee: Wacker Chemie AG
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Filing: 1972-12-08
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Granted: 1975-07-22
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Expires: 1992-12-08
Abstract
Abstract Organopolysiloxane mixtures having a wide molecular weight distribution and viscosity range which may be used as lubricants for organic fibers.
Inventors
- 👤 Anton Stroh
- 👤 Leonhard Gollwitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:36
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M7/00; C; C10; C10M; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/46; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
99 words
A LUBRICATING COMPOSITION FOR ORGANIC FIBERS WHICH COMPRISES A MIXTURE OF ORGANOPOLYSILOXANES CONTAINING: A. FROM 10 TO 75 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 20 TO 200 CS. AT 25*C., B. FROM 10 TO 50 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 1,000 TO 30,000 CS. AT 25*C., AND C. FROM 0 TO 80 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 201 TO 999 CS. AT 25*C., IN WHICH THE ORGANO GROUPS OF SAID ORGANOPOLYSILOXANES CONSIST OF ALKYL GROUPS HAVING FROM 1 TO 5 CARBON ATOMS.
Claim 2
Dependent Claim
99 words
A LUBRICATING COMPOSITION FOR ORGANIC FIBERS WHICH COMPRISES A MIXTURE OF ORGANOPOLYSILOXANES CONTAINING: A. FROM 10 TO 75 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 20 TO 200 CS. AT 25*C., B. FROM 10 TO 50 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 1,000 TO 30,000 CS. AT 25*C., AND C. FROM 0 TO 80 PERCENT BY WEIGHT OF AN ORGANOPOLYSILOXANE HAVING A VISCOSITY OF FROM 201 TO 999 CS. AT 25*C., IN WHICH THE ORGANO GROUPS OF SAID ORGANOPOLYSILOXANES CONSIST OF ALKYL GROUPS HAVING FROM 1 TO 5 CARBON ATOMS.
Claim 3
Dependent Claim
52 words
The composition of claim 1, wherein from 30 to 70 percent by weight of organopolysiloxane (a) having an average viscosity of at least 50 cs. at 25*C. and from 15 to 50 percent by weight of the organopolysiloxane (b) having a viscosity below 5,000 cs. at 25*C. are present in the composition.
Claim 4
Dependent Claim
44 words
The composition of claim 1, wherein the amount of organopolysiloxane (a) exceeds the amount of organopolysiloxane (b) and organopolysiloxane (c) which has a viscosity of from 201 to 999 cs. at 25*C. is present in an amount of at least 10 percent by weight.
Claim 5
Dependent Claim
10 words
The composition of claim 1 which contains an organic solvent.
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |