Patent USRE32318E successfully refreshed from Google Patents.
USRE32318E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire curing bladder lubricant
Assignee: Goodyear Tire and Rubber Co
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Filing: 1984-11-15
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Granted: 1986-12-30
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Expires: 2004-11-15
Abstract
Abstract An aqueous lubricating composition for tire curing bladders containing polydimethylsiloxane, methyl hydrogen or methyl trimethoxy silane, a surfactant and optionally a metal salt of an organic acid.
Inventors
- 👤 Louis F. Comper, deceased
- 👤 Robert F. Scheiderich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:16
CPC Classifications
C; C10; C10M; C10M3/00; B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29C33/64; B29C43/00; B29C43/02; B29C43/10; B29C43/102; B29C43/104; C08; C08L; C08L83/00; C08L83/04; B29L; B29L2030/00; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04; C10N2010/14; C10N2010/16; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
A lubricant composition comprising an aqueous emulsion consisting essentially of: (i) about 20 to about 40 parts by weight polydimethylsiloxane characterized by having a viscosity in the range of about 12 million to about 28 million centistokes at 25° C.; (ii) about .[.12 to about 20.]. .Iadd.35 to about 70 .Iaddend.parts by weight of at least one silane selected from (a) a methyl hydrogen silane, characterized by having a viscosity in the range of about 20 to about 40 centistokes at 25° C., (b) dimethyl hydrogen silane characterized by having a viscosity in the range of about 80 to about 120 centistokes at 25° C. and (c) methyl trimethoxy silane; (iii) optionally, about 3 to about 12 parts by weight of a metal salt of an organic acid selected from at least one of zinc, magnesium, manganese and cobalt acetate, stearate, propionate and octoate; (iv) about 10 to about 25 parts by weight surfactant for said polydimethylsiloxane and (v) about 500 to about 1500 parts by weight water.
Claim 2
Dependent Claim
168 words
A lubricant composition comprising an aqueous emulsion consisting essentially of: (i) about 20 to about 40 parts by weight polydimethylsiloxane characterized by having a viscosity in the range of about 12 million to about 28 million centistokes at 25° C.; (ii) about .[.12 to about 20.]. .Iadd.35 to about 70 .Iaddend.parts by weight of at least one silane selected from (a) a methyl hydrogen silane, characterized by having a viscosity in the range of about 20 to about 40 centistokes at 25° C., (b) dimethyl hydrogen silane characterized by having a viscosity in the range of about 80 to about 120 centistokes at 25° C. and (c) methyl trimethoxy silane; (iii) optionally, about 3 to about 12 parts by weight of a metal salt of an organic acid selected from at least one of zinc, magnesium, manganese and cobalt acetate, stearate, propionate and octoate; (iv) about 10 to about 25 parts by weight surfactant for said polydimethylsiloxane and (v) about 500 to about 1500 parts by weight water.
Claim 3
Dependent Claim
12 words
The lubricant composition of claim 1 where said polydimethylsiloxane is hydroxyl capped.
Claim 4
Dependent Claim
16 words
The compositionn of claim 2 where the silane is methyl hydrogen silane and/or dimethyl hydrogen silane.
Claim 5
Dependent Claim
17 words
The composition of claim 1 or 2 where said metal salt is zinc acetate and/or zinc stearate.
Claim 6
Dependent Claim
27 words
The lubricant composition of claim 2 where the silane is methyl hydrogen silane and/or dimethyl hydrogen silane and the metal salt is zinc acetate and/or zinc stearate.
References Cited (Backward Citations)
US2568384A
Cited
US2586211A
Cited
US2666685A
Cited
US2755194A
Cited
US3031423A
Cited
US3355474A
Cited
US3532624A
Cited
CA992232A
Cited
US3849359A
Cited
US3713851A
Cited
US3905823A
Cited
US3967968A
Cited
US4043924A
Cited
US3872038A
Cited
US4039143A
Cited
US4018564A
Cited
US4100124A
Cited
US4184880A
Cited
US4066560A
Cited
US4162356A
Cited
US4178257A
Cited
US4244742A
Cited
US4281093A
Cited
US4554122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |