Patent US3615784A successfully refreshed from Google Patents.
US3615784A
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US
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Compositions for producing improved concrete
Assignee: JAMES R CATTANACH
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Filing: 1969-08-04
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Granted: 1971-10-26
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Expires: 1989-08-04
Abstract
Abstract A composition for producing air-entrained concrete which includes hydrolyzed casein, water, and a polyethenoxy type surface active agent. Polyvinyl alcohol also can be added to mixture. These compositions in foamed or unfoamed form are mixed with hydraulic cement and water to produce air-entrained concrete or concrete with normal amounts of air.
Inventors
- 👤 James R Cattanach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:50
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02; Y10S516/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
21 words
A composition as claimed in claim 1 in which the casein is hydrolyzed by water and ammonium hydroxide or potassium hydroxide.
Claim 2
Dependent Claim
28 words
A composition as claimed in claim 2 in which the casein is hydrolyzed by boiling with said hydroxide and water before being mixed with said surface active agent.
Claim 3
Dependent Claim
38 words
A composition as claimed in claim 2 in which the amount of said hydroxide is from about 15 to 25 parts, and the amount of water is from about 1,000 to 2,500 parts per 100 parts of casein.
Claim 4
Dependent Claim
23 words
A composition as claimed in claim 1 including about 0.0002 to about 0.0004 parts of ortho-hydroxy benzoic acid per 100 parts of casein.
Claim 5
Dependent Claim
23 words
A composition as claimed in claim 4 including about 0.0002 to about 0.0004 parts of ortho-hydroxy benzoic acid per 100 parts of casein.
Claim 6
Dependent Claim
32 words
An aqueous composition according to claim 1 wherein water is present in said solution in an amount of from 1,000 to 2,500 parts by weight per 100 parts by weight of casein.
Claim 7
Dependent Claim
55 words
An aqueous composition according to claim 1 wherein tHe casein content of said solution is from 3 to 8 percent, said composition further including hydraulic cement, said solution being present in an amount of from one-fourth to 36 fluid ounces per sack of cement, the water/cement ratio of said composition being from 0.25 to 0.50.
Claim 8
Dependent Claim
20 words
An aqueous composition according to claim 8 further including a material selected from the group consisting of sand and aggregate.
Claim 9
Dependent Claim
21 words
A composition according to claim 8 including about 0.0002 to 0.0004 parts of ortho-hydroxy benzoic acid per 100 parts of casein.
Claim 10
Dependent Claim
24 words
A composition according to claim 8 including about 0.25 to 5 percent by weight of polyvinyl alcohol based on the weight of said cement.
References Cited (Backward Citations)
US1769275A
Cited
US2522050A
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GB633114A
Cited
GB663568A
Cited
US2613155A
Cited
US2933406A
Cited
US2913346A
Cited
US3156655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |