US3963507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam-containing slurry to make porous, inorganic construction material
Assignee: Teijin Ltd
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Filing: 1974-05-22
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Granted: 1976-06-15
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Expires: 1994-05-22
Abstract
Abstract Foam-containing slurry for making porous, inorganic construction material composed of 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II], and 0.02 to 1.20 parts of foaming agent [III], the foaming agent [III] comprising (1) as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose derivatives, (2) as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose derivatives, and (3) as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol.
Inventors
- 👤 Naoya Kuramoto
- 👤 Hachiro Saito
- 👤 Wataru Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:14
CPC Classifications
C; C04; C04B; C04B40/00; C04B40/0028; C04B40/0039; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
55 words
A foam-containing slurry for making porous, inorganic construction material comprising 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II] selected from the group consisting of cement, siliceous sand and quicklime and mixtures thereof, and 0.02 to 1.20 parts of foaming agent [III], said foaming agent [III] comprising
Claim 2
Dependent Claim
55 words
A foam-containing slurry for making porous, inorganic construction material comprising 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II] selected from the group consisting of cement, siliceous sand and quicklime and mixtures thereof, and 0.02 to 1.20 parts of foaming agent [III], said foaming agent [III] comprising
Claim 3
Dependent Claim
101 words
as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 2,000 centipoises at 20° C., and 3. as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 4
Dependent Claim
101 words
as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 2,000 centipoises at 20° C., and 3. as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 5
Dependent Claim
163 words
A foam-containing slurry for making porous, inorganic construction material, comprising 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II] selected from the group consisting of cement, siliceous sand and quicklime, and mixtures thereof, and 0.1 to 1.0 part by weight of foaming agent [III], said foaming agent [III] comprising 1. as the foaming component, 0.1 to 10 parts by weight of a water soluble, low-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of a water-soluble, high viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 4,000 centipoises at 20° C., and 3. as the foaming accelerator, 1 to 30 parts by weight of at least 85% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 6
Dependent Claim
163 words
A foam-containing slurry for making porous, inorganic construction material, comprising 100 parts by weight of water [I], 35 to 350 parts by weight of hydraulic substance [II] selected from the group consisting of cement, siliceous sand and quicklime, and mixtures thereof, and 0.1 to 1.0 part by weight of foaming agent [III], said foaming agent [III] comprising 1. as the foaming component, 0.1 to 10 parts by weight of a water soluble, low-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of a water-soluble, high viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 4,000 centipoises at 20° C., and 3. as the foaming accelerator, 1 to 30 parts by weight of at least 85% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 7
Dependent Claim
32 words
The foam-containing slurry of claim 1 wherein said foaming component (1) is selected from the group consisting of methyl cellulose, ethylmethyl cellulose, ethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropyl methyl cellulose and hydroxyethylethyl cellulose.
Claim 8
Dependent Claim
25 words
The foam-containing slurry of claim 2 wherein said foaming component (1) is selected from the group consisting of methyl cellulose, hydroxyethylmethyl cellulose and hydroxypropylmethyl cellulose.
Claim 9
Dependent Claim
33 words
The foam-containing slurry of claim 1 wherein said foam stabilizer (2) is selected from the group consisting of methyl cellulose, ethylmethyl cellulose, ethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, hydroxyethylethyl cellulose and carboxymethyl cellulose.
Claim 10
Dependent Claim
25 words
The foam-containing slurry of claim 2 wherein said foam stabilizer (2) is selected from the group consisting of methyl cellulose, hydroxyethylmethyl cellulose and hydroxypropylmethyl cellulose.
Claim 11
Dependent Claim
54 words
In a method for making a porous inorganic construction material by hardening a foam-containing slurry containing water, hydraulic substance selected from the group consisting of cement, siliceous sand and quicklime and mixtures thereof and foaming agent, the improvement comprising using as said foaming agent a foaming component, a foam stabilizer and foaming accelerator comprising
Claim 12
Dependent Claim
54 words
In a method for making a porous inorganic construction material by hardening a foam-containing slurry containing water, hydraulic substance selected from the group consisting of cement, siliceous sand and quicklime and mixtures thereof and foaming agent, the improvement comprising using as said foaming agent a foaming component, a foam stabilizer and foaming accelerator comprising
Claim 13
Dependent Claim
100 words
as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 2,000 centipoises at 20° C., and 3. as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 14
Dependent Claim
100 words
as the foaming component, 0.05 to 20 parts by weight of water-soluble, low-viscosity cellulose of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of water-soluble, high-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 2,000 centipoises at 20° C., and 3. as the foaming accelerator, at least 1 part by weight of at least 75% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 15
Dependent Claim
118 words
The improved method of claim 7 wherein said foaming agent comprises 1. as the foaming component, 0.1 to 10 parts by weight of a water soluble, low-viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity of 25 to 2,000 centipoises at 20° C., 2. as the foam stabilizer, 1 part by weight of a water soluble, high viscosity cellulose ether of which 2 weight % aqueous solution has a viscosity exceeding 4,000 centipoises at 20° C., and 3. as the foaming accelerator, 1 to 30 parts by weight of at least 85% saponified polyvinyl alcohol of which 4 weight % aqueous solution has a viscosity of not higher than 70 centipoises at 20° C.
Claim 16
Dependent Claim
31 words
The method of claim 7 wherein said foaming component (1) is selected from the group consisting of methyl cellulose, ethylmethyl cellulose, ethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropyl methyl cellulose and hydroxyethylethyl cellulose.
Claim 17
Dependent Claim
24 words
The method of claim 8 wherein said foaming component (1) is selected from the group consisting of methyl cellulose, hydroxyethylmethyl cellulose and hydroxypropylmethyl cellulose.
Claim 18
Dependent Claim
32 words
The method of claim 9 wherein said foam stabilizer (2) is selected from the group consisting of methyl cellulose, ethylmethyl cellulose, ethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, hydroxyethylethyl cellulose and carboxymethyl cellulose.
Claim 19
Dependent Claim
24 words
The method of claim 10 wherein said foam stabilizer (2) is selected from the group consisting of methyl cellulose, hydroxyethylmethyl cellulose and hydroxypropylmethyl cellulose.
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) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |