US4469615A
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Water treating compositions
Assignee: Kohryu Industrial Co Ltd
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Filing: 1982-11-09
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Granted: 1984-09-04
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Expires: 2002-11-09
Abstract
Abstract A water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an alpha , beta -ethylenically unsaturated carboxylic acid and (B) another vinyl monomer. In one embodiment, the water treating composition further comprises one or more conventional corrosion preventing/inhibiting agents.
Inventors
- 👤 Setsuo Tsuruoka
- 👤 Iehito Tasaka
- 👤 Yuji Kawamura
- 👤 Shizuo Kimata
- 👤 Tatsuki Wabiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/12; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
36 words
A water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer.
Claim 2
Dependent Claim
36 words
A water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer.
Claim 3
Dependent Claim
59 words
A water treating composition according to claim 1, wherein the glycidyl ether is a methylglycidyl ether, ethylglycidyl ether, butylglycidyl ether, 2-ethylhexylglycidyl ether, laurylglycidyl ether, butylmethaglycidyl ether, phenylglycidyl ether, phenylmethaglycidyl ether or allylglycidyl ether, and the glycidyl ester is acetic acid methaglycidyl ester, propionic acid glycidyl ester, benzoic acid glycidyl ester, lauric acid glycidyl ester or palmitic acid glycidyl ester.
Claim 4
Dependent Claim
19 words
A water treating composition according to claim 1, wherein the glicidyl ether is a butylglycidyl ether or phenylglycidyl ether.
Claim 5
Dependent Claim
24 words
A water treating composition according to claim 1, wherein the α,β-ethylenically unsaturated carboxylic acid is acrylic acid, methacrylic acid, maleic acid or itaconic acid.
Claim 6
Dependent Claim
20 words
A water treating composition according to claim 1, wherein the α,β-ethylenically unsaturated carboxylic acid is acrylic acid or methacrylic acid.
Claim 7
Dependent Claim
43 words
A water treating composition according to any one of claims 1-5 wherein the other vinyl monomer (B) is acrylic acid, methacrylic acid, maleic acid, itaconic acid, acrylamide, diacetoneacrylamide, methallylsulfonic acid, styrenesulfonic acid, 2-hydroxyethyl acrylate, methylvinyl ether, vinylpyrrolidone, dimethylaminoethyl methacrylate or polyethylene glycol monomethacrylate.
Claim 8
Dependent Claim
24 words
A water treating composition according to claim 6, wherein the other vinyl monomer (B) is acrylic acid, methacrylic acid, maleic acid or itaconic acid.
Claim 9
Dependent Claim
35 words
A water treating composition according to any one of claims 1-5, wherein the water-soluble copolymer consists of the addition reaction product (A) and the other vinyl monomer (B) in a ratio by weight of 0.1-50%:50-99.9%.
Claim 10
Dependent Claim
27 words
A water treating composition according to claim 8, wherein the ratio by weight of the addition reaction product (A) and the other vinyl monomer (B) is 0.1-40%:60-99.9%.
Claim 11
Dependent Claim
32 words
A water treating composition according to claim 6, wherein the water-soluble copolymer consists of the addition reaction product (A) and the other vinyl monomer (B) in a ratio by weight of 0.1-50%:50-99.9%.
Claim 12
Dependent Claim
17 words
A water treating composition according to claim 1, further comprising at least one conventional corrosion preventing/inhibiting agent.
Claim 13
Independent Claim
52 words
A method for water treatment characterized by adding a water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer, in a concentration of 0.5-1000 p.p.m. in water.
Claim 14
Independent Claim
52 words
A method for water treatment characterized by adding a water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer, in a concentration of 0.5-1000 p.p.m. in water.
Claim 15
Dependent Claim
20 words
A method for water treatment according to claim 12, wherein the concentration of the water treating composition is 50-200 p.p.m.
Claim 16
Independent Claim
66 words
A method for water treatment characterized by adding, in water, a conventional corrosion preventing/inhibiting agent in a concentration of 1-100 p.p.m. in combination with a water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer, in a concentration of 0.1-500 p.p.m.
Claim 17
Independent Claim
66 words
A method for water treatment characterized by adding, in water, a conventional corrosion preventing/inhibiting agent in a concentration of 1-100 p.p.m. in combination with a water treating composition comprising a water-soluble copolymer consisting of, as the components, (A) an addition reaction product of a glycidyl ether or glycidyl ester and an α,β-ethylenically unsaturated carboxylic acid and (B) another vinyl monomer, in a concentration of 0.1-500 p.p.m.
Claim 18
Dependent Claim
20 words
A method for water treatment according to claim 14, wherein the concentration of the water treating composition is 5-50 p.p.m.
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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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |