US4039143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic hydrocarbon solvent-based green tire lubricant and process
Assignee: General Electric Co
•
Filing: 1975-01-06
•
Granted: 1977-08-02
•
Expires: 1995-01-06
Abstract
Abstract An improved preformulated internal green tire lubricant and bag release composition is disclosed which comprises a silicone fluid; an alkylene oxide polyol; a particulate solid for providing air bleed channels between the expanding pressure core and the green tire, the amounts of silicone fluid and polyol combined being present at a weight ratio of at least 0.6:1 with respect to the particulate solid; an organic hydrocarbon solvent; a thickening agent; a small effective amount of unsaturated fatty acid to improve lubricity and wet-out and sufficient suspension agents to provide a stabilized, non-settling suspension. A process for decreasing friction in the bag molding of tires using such a composition is also disclosed.
Inventors
- 👤 Edgar D. Brown, Jr.
- 👤 Richard M. Ronda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:53
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29C33/64; B29K; B29K2021/00
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
156 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent; e. from 0.05 to 5% of a suspending agent; f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 2
Dependent Claim
156 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent; e. from 0.05 to 5% of a suspending agent; f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 3
Dependent Claim
30 words
A composition as defined in claim 1 wherein the ratio of combined amount of (a) and (b) to (c), by weight is in the range of from 0.6:1 to 2:1.
Claim 4
Dependent Claim
22 words
A composition as defined in claim 1 which has a viscosity in the range of 10,000 and 40,000 cps. at 25° C.
Claim 5
Dependent Claim
15 words
A composition as defined in claim 1 wherein said poly(diorganosiloxane) fluid (a) contains dimethylsiloxane units.
Claim 6
Dependent Claim
21 words
A composition as defined in claim 1 wherein said alkylene oxide polyol (b) has a molecular weight of at least 1,000.
Claim 7
Dependent Claim
31 words
A composition as defined in claim 5 wherein said alkylene oxide polyol (b) is an ethylene oxide polyol, a propylene oxide polyol, or a copolyol of ethylene oxide and propylene oxide.
Claim 8
Dependent Claim
24 words
A composition as defined in claim 1 wherein said particulate solid (c) has a size ranging from 160 to 600 mesh, U.S. Standard Sieve.
Claim 9
Dependent Claim
16 words
A composition as defined in claim 1 wherein said particulate solid (c) is mica or talc.
Claim 10
Dependent Claim
18 words
A composition as defined in claim 1 wherein said thickening agent (d) is a composition comprising bentonite clay.
Claim 11
Dependent Claim
16 words
A composition as defined in claim 1 wherein said suspending agent (e) is a sorbitan ester.
Claim 12
Dependent Claim
14 words
A composition as defined in claim 10 wherein said sorbitan ester is sorbitan sesquioleate.
Claim 13
Dependent Claim
16 words
A composition as defined in claim 1 wherein said unsaturated fatty acid (f) is oleic acid.
Claim 14
Dependent Claim
21 words
A composition as defined in claim 9 wherein said bentonite clay is combined with methanol in the form of a gel.
Claim 15
Dependent Claim
15 words
A composition as defined in claim 13 wherein said gel has been formed in situ.
Claim 16
Dependent Claim
129 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising; a. about 10% of a poly(diorganosiloxane) fluid having a viscosity in the range of from about 55,000 to 65,000 cps. at 25° C.; b. about 12.5% of a high molecular weight alkylene oxide polyol; c. about 34% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. about 3.2% of a thickening agent; e. about 2.5% of sorbitan sesquioleate; f. about 0.2% of oleic acid; and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 17
Dependent Claim
129 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising; a. about 10% of a poly(diorganosiloxane) fluid having a viscosity in the range of from about 55,000 to 65,000 cps. at 25° C.; b. about 12.5% of a high molecular weight alkylene oxide polyol; c. about 34% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. about 3.2% of a thickening agent; e. about 2.5% of sorbitan sesquioleate; f. about 0.2% of oleic acid; and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 18
Dependent Claim
168 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent; e. from 0.05 to 5% of a suspending agent; f. from 0.005 to 1% of an unsaturated fatty aicd, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 19
Dependent Claim
168 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent; e. from 0.05 to 5% of a suspending agent; f. from 0.005 to 1% of an unsaturated fatty aicd, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 20
Dependent Claim
30 words
A process as defined in claim 16 wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is in the range of from 0.6:1 to 2:1.
Claim 21
Dependent Claim
24 words
A process as defined in claim 16 wherein said composition has a viscosity in the range of 10,000 and 40,000 cps. at 25° C.
Claim 22
Dependent Claim
15 words
A process as defined in claim 16 wherein said poly(diorganosiloxane) fluid (a) contains dimethylsiloxane units.
Claim 23
Dependent Claim
21 words
A process as defined in claim 16 wherein said alkylene oxide polyol (b) has a molecular weight of at least 1,000.
Claim 24
Dependent Claim
30 words
A process as defined in claim 20 wherein said alkylene oxide polyol is an ethylene oxide polyol, a propylene oxide polyol, or a copolyol of ethylene oxide and propylene oxide.
Claim 25
Dependent Claim
24 words
A process as defined in claim 15 wherein said particulate solid (c) has a size ranging from 160 to 600 mesh, U.S. Standard Sieve.
Claim 26
Dependent Claim
16 words
A process as defined in claim 16 wherein said particulate solid (c) is mica or talc.
Claim 27
Dependent Claim
18 words
A process as defined in claim 16 wherein said thickening agent (d) is a composition comprising bentonite clay.
Claim 28
Dependent Claim
16 words
A process as defined in claim 16 wherein said suspending agent (e) is a sorbitan ester.
Claim 29
Dependent Claim
14 words
A process as defined in claim 25 wherein said sorbitan ester is sorbitan sesquioleate.
Claim 30
Dependent Claim
16 words
A process as defined in claim 16 wherein said unsaturated fatty acid (f) is oleic acid.
Claim 31
Dependent Claim
21 words
A process as defined in claim 24 wherein said bentonite clay is combined with methanol in the form of a gel.
Claim 32
Dependent Claim
15 words
A process as defined in claim 28 wherein said gel has been formed in situ.
Claim 33
Dependent Claim
140 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. about 10% of a poly(diorganosiloxane) fluid having a viscosity in the range from about 55,000 to 65,000 cps. at 25° C.; b. about 12.5% of a high molecular weight alkylene oxide polyol; c. about 34% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. about 3.2% of a thickening agent; e. about 2.5% of sorbitan sesquioleate; f. about 0.2% of oleic acid; and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 34
Dependent Claim
140 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. about 10% of a poly(diorganosiloxane) fluid having a viscosity in the range from about 55,000 to 65,000 cps. at 25° C.; b. about 12.5% of a high molecular weight alkylene oxide polyol; c. about 34% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. about 3.2% of a thickening agent; e. about 2.5% of sorbitan sesquioleate; f. about 0.2% of oleic acid; and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 35
Dependent Claim
176 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent comprising bentonite clay and a lower alcohol of from 1 to 4 carbon atoms; e. from 0.05 to 5% of a suspending agent consisting essentially of sorbitan sesquioleate; and f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 36
Dependent Claim
176 words
A composition for reducing the friction between an expanding fluid pressure core and the internal surface of a green tire during vulcanization, said composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent comprising bentonite clay and a lower alcohol of from 1 to 4 carbon atoms; e. from 0.05 to 5% of a suspending agent consisting essentially of sorbitan sesquioleate; and f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 37
Dependent Claim
30 words
A composition as defined in claim 31 wherein the ratio of combined amount of (a) and (b) to (c), by weight is in the range of from 0.6:1 to 2:1.
Claim 38
Dependent Claim
22 words
A composition as defined in claim 31 which has a viscosity in the range of 10,000 and 40,000 cps. at 25° C.
Claim 39
Dependent Claim
15 words
A composition as defined in claim 31 wherein said poly(diorganosiloxane) fluid (a) contains dimethylsiloxane units.
Claim 40
Dependent Claim
21 words
A composition as defined in claim 31 wherein said alkylene oxide polyol (b) has a molecular weight of at least 1,000.
Claim 41
Dependent Claim
31 words
A composition as defined in claim 35 wherein said alkylene oxide polyol (b) is an ethylene oxide polyol, a propylene oxide polyol, or a copolyol of ethylene oxide and propylene oxide.
Claim 42
Dependent Claim
24 words
A composition as defined in claim 31 wherein said particulate solid (c) has a size ranging from 160 to 600 mesh, U.S. Standard Sieve.
Claim 43
Dependent Claim
16 words
A composition as defined in claim 31 wherein said particulate solid (c) is mica or talc.
Claim 44
Dependent Claim
13 words
A composition as defined in claim 31 wherein said lower alcohol is methanol.
Claim 45
Dependent Claim
21 words
A composition as defined in claim 39 wherein said bentonite clay is combined with methanol in the form of a gel.
Claim 46
Dependent Claim
16 words
A composition as defined in claim 31 wherein said unsaturated fatty acid (f) is oleic acid.
Claim 47
Dependent Claim
187 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent comprising bentonite clay and a lower alcohol of from 1 to 4 carbon atoms; e. from 0.05 to 5% of a suspending agent consisting essentially of sorbitan sesquioleate; f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 48
Dependent Claim
187 words
A process for reducing friction in the bag molding of green tires which comprises applying between the surface of an expanding fluid pressure core and the internal surface of a green tire during vulcanization a composition comprising: a. from 5 to 15% of a poly(diorganosiloxane) fluid having a viscosity in the range of 40,000 to 100,000 cps. at 25° C.; b. from 5 to 15% of a high molecular weight alkylene oxide polyol, the total of (a) and (b) combined being from 10 to 30% by weight; c. from 16.7 to 50% of a particulate solid for providing air bleed channels between the expanding pressure core and the green tire; d. from 0.05 to 10% of a thickening agent comprising bentonite clay and a lower alcohol of from 1 to 4 carbon atoms; e. from 0.05 to 5% of a suspending agent consisting essentially of sorbitan sesquioleate; f. from 0.005 to 1% of an unsaturated fatty acid, and the balance comprising a liquid, volatile organic hydrocarbon carrier medium, and wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is at least 0.6:1.
Claim 49
Dependent Claim
30 words
A process as defined in claim 42 wherein the ratio of combined amounts of (a) and (b) to (c), by weight, is in the range of from 0.6:1 to 2:1.
Claim 50
Dependent Claim
24 words
A process as defined in claim 42 wherein said composition has a viscosity in the range of 10,000 and 40,000 cps. at 25° C.
Claim 51
Dependent Claim
15 words
A process as defined in claim 42 wherein said poly(diorganosiloxane) fluid (a) contains dimethylsiloxane units.
Claim 52
Dependent Claim
21 words
A process as defined in claim 42 wherein said alkylene oxide polyol (b) has a molecular weight of at least 1,000.
Claim 53
Dependent Claim
30 words
A process as defined in claim 46 wherein said alkylene oxide polyol is an ethylene oxide polyol, a propylene oxide polyol, or a copolyol of ethylene oxide and propylene oxide.
Claim 54
Dependent Claim
24 words
A process as defined in claim 42 wherein said particulate solid (c) has a size ranging from 160 to 600 mesh, U.S. Standard Sieve.
Claim 55
Dependent Claim
25 words
A process as defined in claim 42 wherein said particulate solid (c) is mica or talc and said unsaturated fatty acid (f) is oleic acid.
Claim 56
Dependent Claim
13 words
A process as defined in claim 42 wherein said lower alcohol is methanol.
Claim 57
Dependent Claim
21 words
A process as defined in claim 50 wherein said bentonite clay is combined with methanol in the form of a gel.
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |