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US4043827A
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Sag-resistant dry-set mortar composition
Assignee: Tile Council of America Inc
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Filing: 1975-10-24
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Granted: 1977-08-23
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Expires: 1995-10-24
Abstract
Abstract Portland cement mortar compositions containing sand and a cellulos ether are modified with certain clay, certain long-chain organic compounds, or mixtures thereof.
Inventors
- 👤 Frank E. Bernett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:36
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C04B24/00; C04B24/24; C04B24/26; C04B24/2652; C04B24/38; C04B24/383
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
71 words
In a dry-set Portland cement mortar composition consisting essentially of, in the dry state, Portland cement and sand present in amounts sufficient to form a conventional mortar composition, and a minor amount of a water-soluble cellulose ether, the improvement consisting of the inclusion in the composition of from 0.5 to 3.0 percent by weight of an additive selected from the group consisting of montmorillonite clays and attapulgite clays, and mixtures thereof.
Claim 2
Dependent Claim
71 words
In a dry-set Portland cement mortar composition consisting essentially of, in the dry state, Portland cement and sand present in amounts sufficient to form a conventional mortar composition, and a minor amount of a water-soluble cellulose ether, the improvement consisting of the inclusion in the composition of from 0.5 to 3.0 percent by weight of an additive selected from the group consisting of montmorillonite clays and attapulgite clays, and mixtures thereof.
Claim 3
Dependent Claim
13 words
A composition as in claim 1, wherein the additive is a montmorillonite clay.
Claim 4
Dependent Claim
13 words
A composition as in claim 1, wherein the additive is an attapulgite clay.
Claim 5
Dependent Claim
17 words
A composition as in claim 1, wherein the additive is a mixture of attapulgite and montmorillonite clays.
Claim 6
Dependent Claim
110 words
In a dry-set Portland cement mortar composition consisting essentially of, in the dry state, Portland cement and sand present in amounts sufficient to form a conventional mortar composition, and a minor amount of a water-soluble cellulose ether, the improvement consisting of the inclusion in the composition of from 0.5 to 3.0 percent by weight of a first additive selected from the group consisting of montmorillonite clays, attapulgite clays, slaked lime, talc, kaolin, wollastonite, and mixtures thereof, said composition further having included in said composition of from about 0.01 to about 0.25 percent by weight of the composition of a long-chain polymeric compound additive having a Flocculation Index less then 0.50.
Claim 7
Dependent Claim
110 words
In a dry-set Portland cement mortar composition consisting essentially of, in the dry state, Portland cement and sand present in amounts sufficient to form a conventional mortar composition, and a minor amount of a water-soluble cellulose ether, the improvement consisting of the inclusion in the composition of from 0.5 to 3.0 percent by weight of a first additive selected from the group consisting of montmorillonite clays, attapulgite clays, slaked lime, talc, kaolin, wollastonite, and mixtures thereof, said composition further having included in said composition of from about 0.01 to about 0.25 percent by weight of the composition of a long-chain polymeric compound additive having a Flocculation Index less then 0.50.
Claim 8
Dependent Claim
15 words
A composition as in claim 5, wherein the long-chain polymeric compound additive is hydroxalkyl starch.
Claim 9
Dependent Claim
14 words
A composition as in claim 5, wherein the long-chain polymeric compound additive is polyacrylimide.
Claim 10
Dependent Claim
17 words
A composition as in claim 5, wherein the long-chain polymeric compound additive is non-ionic long-chain acrylimide copolymer.
Claim 11
Dependent Claim
17 words
A composition as in claim 5, wherein the long-chain polymeric compound additive is anionic long-chain acrylimide copolymer.
Claim 12
Dependent Claim
16 words
A composition as in claim 5, wherein the long-chain polymeric compound additive is sodium carboxymethyl cellulose.
Claim 13
Dependent Claim
18 words
A composition as in claim 5, wherein the long-chain polymeric compound has a Flocculation Index less than 0.40.
Claim 14
Dependent Claim
18 words
A composition as in claim 5, wherein the long-chain polymeric compound has a Flocculation Index less than 0.30.
Claim 15
Dependent Claim
21 words
A composition as in claim 5, wherein the first additive is slaked lime and the long polymeric compound additive is polyacrylamide.
Claim 16
Dependent Claim
19 words
A composition as in claim 5, wherein the first additive is talc and the polymeric compound additive is polyacrylamide
Claim 17
Dependent Claim
19 words
A composition as in claim 5, wherein the first additive is wollastonite and the polymeric compound additive is polyacrylamide.
Claim 18
Dependent Claim
20 words
A composition as in claim 5, wherein the first additive is wollastonite and the polymeric compound additive is hydroxyalkyl starch.
Claim 19
Dependent Claim
20 words
A composition as in claim 5, wherein the first additive is talc and the polymeric compound additive is hydroxyalkyl starch.
Claim 20
Dependent Claim
20 words
A composition as in claim 5, wherein the first additive is attapulgite and the polymeric compound additive is hydroxyalkyl starch.
Claim 21
Dependent Claim
19 words
A composition as in claim 5, wherein the first additive is attapulgite and the polymeric compound additive is polyacrylamide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |