US4116703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite foamable cements
Assignee: Corning Glass Works
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Filing: 1977-09-30
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Granted: 1978-09-26
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Expires: 1997-09-30
Abstract
Abstract An inorganic cement mixture, capable of being thermally foamed in situ, consists essentially by weight of 8-20% of crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a glass powder, and 45-70% quaternary ammonium silicate solution. The mixture can be set as a cement and thermally foamed to unite two bodies and serve as a spacer and support to maintain them in spaced relation.
Inventors
- 👤 John L. Stempin
- 👤 Dale R. Wexell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:37
CPC Classifications
C; C04; C04B; C04B12/00; C04B12/04; C04B28/00; C04B28/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
40 words
An inorganic cement mixture, capable of being foamed, and consisting essentially of, in percent by weight, 8-20% crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a silicate glass powder, and 45-70% of quaternary ammonium silicate solution.
Claim 2
Dependent Claim
40 words
An inorganic cement mixture, capable of being foamed, and consisting essentially of, in percent by weight, 8-20% crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a silicate glass powder, and 45-70% of quaternary ammonium silicate solution.
Claim 3
Dependent Claim
24 words
An inorganic cement mixture in accordance with claim 1 wherein the crystalline hydraulic cement component is a premixed cement composed predominantly of Portland cement.
Claim 4
Dependent Claim
19 words
An inorganic cement mixture in accordance with claim 1 wherein the total hydraulic cement content does not exceed 50%.
Claim 5
Dependent Claim
42 words
An inorganic cement mixture in accordance with claim 1 wherein the crystalline hydraulic cement content does not exceed 15%, the silicate glass hydraulic cement content does not exceed 30%, and the quaternary ammonium silicate solution is at least 55% of the mixture.
Claim 6
Dependent Claim
34 words
An inorganic cement mixture in accordance with claim 1 wherein the crystalline hydraulic cement content is about 10%, the glass powder content is about 25% and the quaternary ammonium silicate solution is about 65%.
Claim 7
Independent Claim
58 words
A method of forming an inorganic cement body which comprises forming a thixotropic mixture consisting essentially of, in percent by weight, 8-20% crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a silicate glass powder, and 45-70% of quaternary ammonium silicate, and allowing the mixture to react and set at a temperature below 150° C.
Claim 8
Independent Claim
58 words
A method of forming an inorganic cement body which comprises forming a thixotropic mixture consisting essentially of, in percent by weight, 8-20% crystalline hydraulic cement, 22-35% of a hydraulic cement in the form of a silicate glass powder, and 45-70% of quaternary ammonium silicate, and allowing the mixture to react and set at a temperature below 150° C.
Claim 9
Dependent Claim
32 words
A method in accordance with claim 6 wherein the set mixture is heated at a temperature sufficient to expand the mass to not more than five fold to form a foamed cement.
References Cited (Backward Citations)
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US3743601A
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US3743525A
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US3844804A
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US3832195A
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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) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |