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US4151150A
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Styrene-butadiene interpolymer latex based cement additives containing a silane
Assignee: Dow Chemical Co
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Filing: 1977-12-27
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Granted: 1979-04-24
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Expires: 1997-12-27
Abstract
Abstract Cement compositions having improved strength and enhanced adhesion to siliceous substrates are obtained by admixing Portland cement with a cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, said latex being present in an amount sufficient to provide from about 5 to about 25 parts by weight of latex polymer solids based on the weight of cement and (2) from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR') 3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 carbon atoms, --CH 2 CH 2 OR" and --CH 2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
Inventors
- 👤 James Peters
- 👤 Victor E. Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:19
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C04B24/00; C04B24/40; C04B24/42
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
119 words
A cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, (2) as a coupling agent from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR') 3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 carbon atoms, --CH 2 CH 2 OR" and --CH 2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
Claim 2
Dependent Claim
119 words
A cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, (2) as a coupling agent from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR') 3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 carbon atoms, --CH 2 CH 2 OR" and --CH 2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
Claim 3
Dependent Claim
22 words
The cement additive of claim 1 wherein said styrene-butadiene interpolymer has a styrene:butadiene weight ratio of from about 30:70 to about 70:30.
Claim 4
Dependent Claim
64 words
The cement additive of claim 2 wherein said additive additionally contains, based on 100 parts by weight of interpolymer solids, (A) from about 3 to about 10 parts by weight of a nonionic surfactant, (B) from about 3 to about 10 parts by weight of an anionic surfactant, and (C) from about 0.1 to about 5 parts by weight of a polyorganosiloxane foam depressant.
Claim 5
Dependent Claim
13 words
The cement additive of claim 3 wherein said nonionic surfactant is a di-t-butyl-phenoxynonaoxyethylene-ethanol.
Claim 6
Dependent Claim
14 words
The cement additive of claim 4 wherein said anionic surfactant is sodium lauryl sulfate.
Claim 7
Dependent Claim
19 words
The cement additive of claim 5 wherein said polyorganosiloxane foam depressant is a condensation product of dimethyl silane diol.
Claim 8
Dependent Claim
21 words
The cement additive of claim 6 wherein said silane is selected from the group consisting of mercaptopropyltrimethoxysilane, glycidoxytrimethoxysilane, vinyltriacetoxysilane, and N-betaaminoethyl-gamma-aminopropyltrimethoxysilane.
Claim 9
Dependent Claim
26 words
The cement additive of claim 7 wherein said interpolymer is an interpolymer of about 66 parts by weight styrene and about 34 parts by weight butadiene.
Claim 10
Dependent Claim
161 words
A Portland cement composition comprising a mixture of Portland cement and a cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, and latex being present in an amount sufficient to provide from about 5 to about 25 parts by weight of latex polymer solids based on the weight of cement and (2) as a coupling agent from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR') 3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 inclusive carbon atoms, --CH 2 CH 2 OR" and --CH 2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
Claim 11
Dependent Claim
161 words
A Portland cement composition comprising a mixture of Portland cement and a cement additive comprising (1) a styrene-butadiene interpolymeric latex containing up to about 60 parts by weight of interpolymer solids, and latex being present in an amount sufficient to provide from about 5 to about 25 parts by weight of latex polymer solids based on the weight of cement and (2) as a coupling agent from about 0.05 to about 3 parts by weight of latex solids of a silane of the formula ZSi(OR') 3 wherein Z is a member selected from the group consisting of hydrocarbon groups and substituted hydrocarbon groups in which the substituent is bonded to the silicon atom through at least one carbon atom, and R' is selected from the group consisting of alkyl radicals of from 1 to 3 inclusive carbon atoms, --CH 2 CH 2 OR" and --CH 2 CHOH where R" is an aliphatic hydrocarbon radical of 1 to 3 inclusive carbon atoms.
Claim 12
Dependent Claim
23 words
The Portland cement composition of claim 9 wherein said styrene-butadiene interpolymer has a styrene:butadiene weight ratio of from about 30:70 to about 70:30.
Claim 13
Dependent Claim
65 words
The Portland cement composition of claim 10 wherein said additive additionally contains, based on 100 parts by weight of interpolymer solids, (A) from about 3 to about 10 parts by weight of a nonionic surfactant, (B) from about 3 to about 10 parts by weight of an anionic surfactant, and (C) from about 0.1 to about 5 parts by weight of a polyorganosiloxane foam depressant.
Claim 14
Dependent Claim
14 words
The Portland cement composition of claim 11 wherein said nonionic surfactant is a di-butyl-phenoxynonaoxyethylene-ethanol.
Claim 15
Dependent Claim
15 words
The Portland cement composition of claim 12 wherein said anionic surfactant is sodium lauryl sulfate.
Claim 16
Dependent Claim
20 words
The Portland cement composition of claim 13 wherein said polyorganosiloxane foam depressant is a condensation product of dimethyl silane diol.
Claim 17
Dependent Claim
22 words
The Portland cement composition of claim 14 wherein said silane is selected from the group consisting of mercaptopropyltrimethoxysilane, glycidoxytrimethoxysilane, vinyltriacetoxysilane, and N-betaaminoethyl-gamma-aminopropyltrimethoxysilane.
Claim 18
Dependent Claim
27 words
The Portland cement composition of claim 15 wherein said interpolymer is an interpolymer of about 66 parts by weight styrene and about 34 parts by weight butadiene.
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |