Patent US1876134A successfully refreshed from Google Patents.
US4036658A
Expired / Lapsed
US
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Process for the preparation of an impregnated building material, and the product thereby obtained
Assignee: Nya Asfalt AB
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Filing: 1974-04-25
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Granted: 1977-07-19
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Expires: 1994-04-25
Abstract
Abstract The invention refers to a process for the preparation of a hydrofobous building material containing a ballast material and a binder added or formed in connection with the manufacture. At least part of the ballast material is or is made water-repellant and is admixed with the rest of the ingredients of the building material, the amount of water-repellant ballast material and the grain size thereof being adapted so that the water-repellant characteristics of the building material is brought to an acceptable level while maintaining a sufficient wet vapor diffusion ability.
Inventors
- 👤 Josef Alfred Puhringer
- 👤 David Yngve Mikael Lund
- 👤 Rolf Bo Froberg
- 👤 Erik Vilhelm Bernhard Ornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:30
CPC Classifications
C; C04; C04B; C04B20/00; C04B20/10; C04B20/1051
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
132 words
A process for the preparation of plaster or mortar as a hydrofobous building material, wherein said plaster or mortar contains a ballast material and a binder, comprising impregnating the ballast material in a proportion of 5 to 90% by volume of said ballast material with a water repellant, said water repellant being a silane or a siloxane solution, a predominant part of the water repellant ballast material having a grain size of about 0.1 to 4 mms; drying said impregnated ballast material, admixing said impregnated ballast with said binder in an amount sufficient for forming plaster or mortar, said plaster or mortar possessing substantial water-repellant and substantial water vapor diffusion characteristics by allowing the material to reject water yet allowing the expelling of moisture from or through the incorporated plaster or mortar.
Claim 2
Dependent Claim
132 words
A process for the preparation of plaster or mortar as a hydrofobous building material, wherein said plaster or mortar contains a ballast material and a binder, comprising impregnating the ballast material in a proportion of 5 to 90% by volume of said ballast material with a water repellant, said water repellant being a silane or a siloxane solution, a predominant part of the water repellant ballast material having a grain size of about 0.1 to 4 mms; drying said impregnated ballast material, admixing said impregnated ballast with said binder in an amount sufficient for forming plaster or mortar, said plaster or mortar possessing substantial water-repellant and substantial water vapor diffusion characteristics by allowing the material to reject water yet allowing the expelling of moisture from or through the incorporated plaster or mortar.
Claim 3
Dependent Claim
25 words
The process as defined in claim 1 wherein the impregnant is a silane and is used as a solution consisting of 40% silane in methanol.
Claim 4
Dependent Claim
32 words
The process of claim 1 wherein one half of the ballast material has a maximum particle size of 0.25 mm and the other half has a maximum particle size of 0.50 mm.
Claim 5
Dependent Claim
18 words
The process of claim 1 wherein at least 10% by volume of the ballast material is water repellant.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein up to 50% of the ballast material is water repellant.
Claim 7
Dependent Claim
18 words
The process of claim 1 wherein 20% to 50% by volume of the ballast material is water repellant.
Claim 8
Dependent Claim
23 words
The process of claim 1 wherein the binder is mixed with the ballast material at a ratio of 20 parts to 100 parts.
Claim 9
Dependent Claim
23 words
The process of claim 1 wherein the binder is mixed with the ballast material at a ratio of 30 parts to 100 parts.
Claim 10
Dependent Claim
135 words
A hydrofobous building material consisting essentially of a mixture of a binder of lime mortar, cement mortar, or plaster in an amount sufficient to bind a ballast material therefor, wherein said ballast material is crushed cement mortar, crushed lime mortar, crushed concrete, crushed clay brick, or crushed stone having a particle size of about 0.1 to 4 mms, wherein 5% to about 90% by volume of the ballast material is made water-repellant by impregnating with a 5% to 40% solution of a silane or a siloxane and then dried and a sufficient amount of water-repellant ballast material is mixed with the binder to impart to the cured building material a water penetration ability not exceeding 0.5 liter/m 2 , h and a water vapor diffusion of at least 1 g/m 2 , h, mm Hg.
Claim 11
Dependent Claim
135 words
A hydrofobous building material consisting essentially of a mixture of a binder of lime mortar, cement mortar, or plaster in an amount sufficient to bind a ballast material therefor, wherein said ballast material is crushed cement mortar, crushed lime mortar, crushed concrete, crushed clay brick, or crushed stone having a particle size of about 0.1 to 4 mms, wherein 5% to about 90% by volume of the ballast material is made water-repellant by impregnating with a 5% to 40% solution of a silane or a siloxane and then dried and a sufficient amount of water-repellant ballast material is mixed with the binder to impart to the cured building material a water penetration ability not exceeding 0.5 liter/m 2 , h and a water vapor diffusion of at least 1 g/m 2 , h, mm Hg.
Claim 12
Dependent Claim
20 words
The composition of claim 9 wherein the ballast material contains silane impregnated with a 5% to 40% solution of silane.
Claim 13
Dependent Claim
20 words
The composition of claim 9 wherein the ballast material contains silane impregnated with a 5% to 40% solution of siloxane.
Claim 14
Dependent Claim
22 words
The composition of claim 9 wherein the 20% to 50% by volume of the ballast material is impregnated with silane or siloxane.
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) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |