Patent US3403299A successfully refreshed from Google Patents.
Patent US4092192A successfully refreshed from Google Patents.
US4092192A
Expired / Lapsed
US
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High temperature caulking composition and method
Assignee: Individual
•
Filing: 1977-03-10
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Granted: 1978-05-30
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Expires: 1997-03-10
Abstract
Abstract A caulking composition and method, particularly for hermetically sealing coke ovens and the like having high temperature requirements. The composition is adhesive to metal surfaces at elevated oven temperatures, elastic to accommodate expansion, warping, etc. and drys to a crushable powder by the conclusion of the oven cycle. The composition comprises, by weight, 19 to 23% of a high temperature silicone oil, preferably about 20% dimethyl polysiloxane 20 to 34% of a thermally conductive white metal oxide, preferably zinc oxide, 20 to 34% of an inert particulate filler material, such as whiting and 22 to 35% of a hydrated alkaline metal oxide, such as hydrated lime.
Inventors
- 👤 Douglas Magyari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:10
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/14; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L; C08L83/00; C08L83/04; C09; C09D; C09D5/00; C09D5/34; C10; C10B; C10B25/00; C10B25/02; C10B25/16
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
76 words
A high temperature caulking composition for sealing oven closures and the like, particularly coke ovens, comprising: a semi-fluid putty-like compound which is adhesive to metal surfaces at elevated oven temperatures and dryable to a crushable powder, having by weight 19 to 23% of a high temperature silicone oil, 20 to 34% of a thermally conductive white metal oxide, 20 to 34% of inert particulate filler material and 22 to 35% of a hydrated alkaline metal hydroxide.
Claim 2
Dependent Claim
76 words
A high temperature caulking composition for sealing oven closures and the like, particularly coke ovens, comprising: a semi-fluid putty-like compound which is adhesive to metal surfaces at elevated oven temperatures and dryable to a crushable powder, having by weight 19 to 23% of a high temperature silicone oil, 20 to 34% of a thermally conductive white metal oxide, 20 to 34% of inert particulate filler material and 22 to 35% of a hydrated alkaline metal hydroxide.
Claim 3
Dependent Claim
17 words
The oven caulking composition defined in claim 1, characterized in that said silicone oil is dimethyl polysiloxane.
Claim 4
Dependent Claim
22 words
The oven caulking composition defined in claim 2, characterized in that the concentration of dimethyl polysiloxane is 19 to 22% by weight.
Claim 5
Dependent Claim
19 words
The oven caulking composition defined in claim 1, characterized in that said conductive white metal oxide is zinc oxide.
Claim 6
Dependent Claim
19 words
The oven caulking composition defined in claim 1, characterized in that said hydrated alkaline metal hydroxide is hydrated lime.
Claim 7
Dependent Claim
56 words
A high temperature caulking composition particularly for coke ovens, comprising: a flowable putty-like compound which is adhesive to hot metal surfaces up to about 1200° F and dryable to a crushable powder, having by weight 19 to 23% fluid dimethyl polysiloxane, 20 to 34% zinc oxide, 20 to 34% whiting and 22 to 35% hydrated lime.
Claim 8
Dependent Claim
56 words
A high temperature caulking composition particularly for coke ovens, comprising: a flowable putty-like compound which is adhesive to hot metal surfaces up to about 1200° F and dryable to a crushable powder, having by weight 19 to 23% fluid dimethyl polysiloxane, 20 to 34% zinc oxide, 20 to 34% whiting and 22 to 35% hydrated lime.
Claim 9
Dependent Claim
21 words
The oven caulking composition defined in claim 6, characterized in that the concentration of dimethyl polysiloxane is about 20% by weight.
Claim 10
Dependent Claim
23 words
The caulking composition defined in claim 6, wherein the concentration of zinc oxide, whiting and hydrated lime are each about 27% by weight.
Claim 11
Dependent Claim
80 words
A high temperature caulking composition for sealing coke ovens comprising: a semi-fluid putty-like composition which is adhesive to metal surfaces at elevated oven temperatures and dryable to a crushable powder, comprising by weight 19 to 22% of a high temperature silicone oil having a viscosity of about 350 centistoke, 23 to 29% of a thermally conductive white metal oxide powder, 23 to 29% of an inert white particulate filler material and 26 to 32% of a hydrated alkaline metal hydroxide.
Claim 12
Dependent Claim
80 words
A high temperature caulking composition for sealing coke ovens comprising: a semi-fluid putty-like composition which is adhesive to metal surfaces at elevated oven temperatures and dryable to a crushable powder, comprising by weight 19 to 22% of a high temperature silicone oil having a viscosity of about 350 centistoke, 23 to 29% of a thermally conductive white metal oxide powder, 23 to 29% of an inert white particulate filler material and 26 to 32% of a hydrated alkaline metal hydroxide.
Claim 13
Dependent Claim
16 words
The caulking composition defined in claim 9, characterized in that said silicone oil is dimethyl polysiloxane.
Claim 14
Independent Claim
122 words
A method of sealing high temperature metal oven closures, particularly coke oven doors, lids and caps and the like, comprising the steps of: forming a semi-fluid putty-like composition which is adhesive to hot metal surfaces up to about 1200° F, having by weight 19 to 23% of a high temperature fluid silicone oil, 20 to 34% of a thermally conductive white metal oxide, 20 to 34% of an inert particulate filler material and 22 to 35% of a hydrated alkaline metal hydroxide, sealing the metal oven closures by applying said putty-like composition to the hot metal surfaces surrounding said closures following charging of the oven, and resealing the oven closures following recharging the oven directly over the same metal surfaces without cleaning.
Claim 15
Independent Claim
122 words
A method of sealing high temperature metal oven closures, particularly coke oven doors, lids and caps and the like, comprising the steps of: forming a semi-fluid putty-like composition which is adhesive to hot metal surfaces up to about 1200° F, having by weight 19 to 23% of a high temperature fluid silicone oil, 20 to 34% of a thermally conductive white metal oxide, 20 to 34% of an inert particulate filler material and 22 to 35% of a hydrated alkaline metal hydroxide, sealing the metal oven closures by applying said putty-like composition to the hot metal surfaces surrounding said closures following charging of the oven, and resealing the oven closures following recharging the oven directly over the same metal surfaces without cleaning.
Claim 16
Dependent Claim
26 words
The method of sealing high temperature metal oven closures defined in claim 11, characterized in that said fluid silicone oil is 19 to 22% dimethyl siloxane.
Claim 17
Independent Claim
108 words
A method of sealing coke oven door and the like, comprise the steps of: forming a flowable putty-like composition which is adhesive to hot metal surfaces and dryable to crushable powder, having by weight 19 to 22% dimethyl polysiloxane, 20 to 34% of a white metal oxide, 20 to 34% of an inert particulate filler material and 22 to 35% of a hydrated alkaline metal oxide, sealing the coke oven door by applying said putty-like composition to the hot metal surfaces surrounding said doors following charging of the coke oven with coal, and resealing the doors following recharging of said coke oven directly over the dry sealing composition.
Claim 18
Independent Claim
108 words
A method of sealing coke oven door and the like, comprise the steps of: forming a flowable putty-like composition which is adhesive to hot metal surfaces and dryable to crushable powder, having by weight 19 to 22% dimethyl polysiloxane, 20 to 34% of a white metal oxide, 20 to 34% of an inert particulate filler material and 22 to 35% of a hydrated alkaline metal oxide, sealing the coke oven door by applying said putty-like composition to the hot metal surfaces surrounding said doors following charging of the coke oven with coal, and resealing the doors following recharging of said coke oven directly over the dry sealing composition.
References Cited (Backward Citations)
US2833664A
Cited
US3885984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |