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 16:35
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.
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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) | 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 |