US4024098A
Expired / Lapsed
US
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Reinforcing composition for mineral structures
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1975-08-13
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Granted: 1977-05-17
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Expires: 1995-08-13
Abstract
Abstract A reinforcing composition for mineral structures which comprises as reactive ingredients one or more radical-polymerizable or copolymerizable monomer and a bisulfite ion-supplying substance. The use of the reinforcing composition facilitates reinforcement of natural or artificial mineral structures and products.
Inventors
- 👤 Tadashi Yamaguchi
- 👤 Takayuki Ono
- 👤 Hiroshi Hoshi
- 👤 Michio Hirakawa
- 👤 Isao Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:50
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/48; C04B41/483; C09; C09K; C09K17/00; C09K17/40; C09K17/48
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A composition for impregnating and reinforcing mineral masses by in situ polymerization therein which is stable against polymerization until contacted with said mineral mass, said composition being formed of a liquid mixture consisting essentially of at least one radical polymerizable liquid monomer selected from the group consisting of methyl acrylate, methyl methacrylate, and glycidyl methacrylate and an amount of a bisulfite ion-supplying substance which is within the range of about 0.001-50 parts, calculated as SO 2 , per 100 parts by weight of monomer and sufficient to effect polymerization of said monomeric ester upon contact with said mineral mass.
Claim 2
Dependent Claim
99 words
A composition for impregnating and reinforcing mineral masses by in situ polymerization therein which is stable against polymerization until contacted with said mineral mass, said composition being formed of a liquid mixture consisting essentially of at least one radical polymerizable liquid monomer selected from the group consisting of methyl acrylate, methyl methacrylate, and glycidyl methacrylate and an amount of a bisulfite ion-supplying substance which is within the range of about 0.001-50 parts, calculated as SO 2 , per 100 parts by weight of monomer and sufficient to effect polymerization of said monomeric ester upon contact with said mineral mass.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein said bisulfite ion-supplying substance is an aqueous solution of sulfurous acid and said monomer is dispersed in said solution.
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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |