Patent US4154818A successfully refreshed from Google Patents.
US4154818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel product for destroying harmful marine organisms and method of applying the same
Assignee: Katayama Chemical Inc
•
Filing: 1977-06-09
•
Granted: 1979-05-15
•
Expires: 1997-06-09
Abstract
Abstract New gel product for exterminating harmful marine organisms. Comprises (a) about 1 to 25% by weight of a natural high molecular weight compound capable of forming a gel in water, (b) about 5 to 30% by weight of an agent for exterminating harmful marine organisms, (c) about 1 to 25% by weight of at least one compound selected from the group consisting of a water soluble synthetic linear polymer, an inorganic substance, a surfactant, an organic solvent, a gel-modifier, and mixtures thereof, and (d) water.
Inventors
- 👤 Sadaoki Kanada
- 👤 Kunio Nishmura
- 👤 Toru Yasunaga
- 👤 Sakae Katayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:42
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
184 words
A gel product for exterminating or inhibiting harmful marine organisms from boring or attaching to lumber stored in salt water when said gel product is disposed in salt water proximate to said lumber, said gel product comprising (a) from about 1 to 25% by weight of a natural, high molecular weight compound capable of forming a gel in water, said compound being gelatin, glue, starch, carboxymethyl cellulose or agar; (b) from about 5 to 30% by weight of an agent capable of exterminating harmful marine organisms; (c) from about 1 to 25% by weight of a compound selected from the group consisting of a water-soluble synthetic linear polymer, an inorganic material, a surfactant, an organic solvent, a gel-modifier, and mixtures thereof, wherein the water-soluble synthetic linear polymer is a polyacrylate, polyacrylamide, polyethyleneoxide, a polymethacrylate, acrylic acid/maleic acid copolymer or a salt thereof, acrylic acid/acrylamide copolymer or salt thereof, and wherein the inorganic material is a water-soluble sulfate, an alkali metal halide, a water-soluble borate, a water-soluble nitrite, a water-soluble thiosulfate, talc or diatomaceous earth; and (d) water; said gel product exhibiting elasticity and flexibility.
Claim 2
Dependent Claim
184 words
A gel product for exterminating or inhibiting harmful marine organisms from boring or attaching to lumber stored in salt water when said gel product is disposed in salt water proximate to said lumber, said gel product comprising (a) from about 1 to 25% by weight of a natural, high molecular weight compound capable of forming a gel in water, said compound being gelatin, glue, starch, carboxymethyl cellulose or agar; (b) from about 5 to 30% by weight of an agent capable of exterminating harmful marine organisms; (c) from about 1 to 25% by weight of a compound selected from the group consisting of a water-soluble synthetic linear polymer, an inorganic material, a surfactant, an organic solvent, a gel-modifier, and mixtures thereof, wherein the water-soluble synthetic linear polymer is a polyacrylate, polyacrylamide, polyethyleneoxide, a polymethacrylate, acrylic acid/maleic acid copolymer or a salt thereof, acrylic acid/acrylamide copolymer or salt thereof, and wherein the inorganic material is a water-soluble sulfate, an alkali metal halide, a water-soluble borate, a water-soluble nitrite, a water-soluble thiosulfate, talc or diatomaceous earth; and (d) water; said gel product exhibiting elasticity and flexibility.
Claim 3
Dependent Claim
24 words
The product of claim 1, wherein the exterminating agent is triphenyltin hydroxide, triphenyltin acetate, tricyclohexyltin hydroxide, tetramethylthiuram disulfide, ethylenethiuram monosulfide, ethylenebis-dithiocarbamate, 3,5-dimethyltetrahydro-1,3,5-thiadiazine-2-thione, or 5-chloro-2-methyl-4-isothiazoline-3-one.
Claim 4
Dependent Claim
25 words
The product of claim 1, wherein element (c) comprises a water-soluble linear polymer present in an amount of from about 0.5 to 5% by weight.
Claim 5
Dependent Claim
29 words
The product of claim 3, additionally containing from about 1 to 10% by weight of said inorganic material and from about 0.1 to 5.0% by weight of said surfactant.
Claim 6
Dependent Claim
18 words
The product of claim 4, additionally containing from about 1 to 20% by weight of said organic solvent.
Claim 7
Dependent Claim
17 words
The product of claim 5, additionally containing from about 0.01 to 5.0% by weight of said gel-modifier.
Claim 8
Dependent Claim
18 words
The product of claim 3, additionally containing from about 1 to 20% by weight of said organic solvent.
Claim 9
Dependent Claim
23 words
The product of claim 1, wherein element (c) comprises said inorganic material in an amount of from about 1.0 to 10.0% by weight.
Claim 10
Dependent Claim
17 words
The product of claim 1, additionally containing from about 0.1 to 5.0% by weight of said surfactant.
Claim 11
Dependent Claim
42 words
The product of claim 1, said product containing about 10% by weight of gelatin, about 10% by weight of triphenyltin hydroxide, about 2% by weight of sodium polyacrylate, about 1% by weight of sodium nitrite, and about 77% by weight of water.
Claim 12
Dependent Claim
40 words
The product of claim 1, said product containing about 10% by weight of glue, about 15% by weight of ethylenethiuram monosulfide, about 3% by weight of polyethyleneoxide, about 5% by weight of talc, and about 67% by weight of water.
Claim 13
Dependent Claim
68 words
The product of claim 1, said product containing 4% by weight of glue, about 20% by weight of tetramethylthiuram disulfide, about 2% by weight of triphenyltin hydroxide, about 0.5% by weight of 3,5-dimethyltetrahydro-1,3,5-thiadiazin-2-thione, about 2.5% by weight of sodium polyacrylate, about 3% by weight of sodium borate, about 3% by weight of sodium chloride, about 3% by weight of sodium nitrite, and about 64% by weight of water.
Claim 14
Dependent Claim
46 words
The product of claim 1, said product containing about 6% by weight of gelatin, about 2% by weight of starch, about 20% by weight of tetramethylthiuram disulfide, about 2% by weight of polyacrylamide, about 3% by weight of glycerin, and about 67% by weight of water.
Claim 15
Dependent Claim
49 words
The product of claim 1, said product containing about 8% by weight of glue, about 20% by weight of ethylenethiuram monosulfide, about 2% by weight of carboxymethylcellulose, about 2% by weight of sodium borate, about 3% by weight of polyoxyethylene lauryl ether, and about 65% by weight of water.
Claim 16
Dependent Claim
67 words
The product of claim 1, said product containing about 2% by weight of gelatin, about 4% by weight of glue, about 25% by weight of tetramethylthiuram disulfide, about 1% by weight of sodium polyacrylate, about 1% by weight of polyacrylamide, about 2% by weight of sodium chloride, about 1.9% by weight of polyoxyethylene palmalkylamide, about 0.1% by weight of formalin, and about 63% by weight of water.
Claim 17
Dependent Claim
20 words
The product of claim 1, wherein the remainder of said product, apart from elements (a), (b), and (c), is water.
Claim 18
Dependent Claim
36 words
A method of inhibiting harmful marine organisms from boring or attaching to lumber stored in salt water, this method comprising disposing the gel product of claim 1 in said salt water and proximate to said lumber.
Claim 19
Dependent Claim
52 words
The product of claim 1, wherein element (c) comprises said water-soluble synthetic linear polymer in an amount of from 0.5 to 5% by weight, said inorganic material in an amount of from about 1 to 10% by weight, and said gel-modifier in an amount of from about 0.01 to 5% by weight.
Claim 20
Dependent Claim
37 words
The product of claim 1, wherein element (c) comprises said inorganic material in an amount of from about 1 to 10% by weight and said surfactant in an amount of from about 0.1 to 5% by weight.
Claim 21
Dependent Claim
17 words
The product of claim 3, additionally containing from 1 to 10% by weight of said inorganic material.
Claim 22
Dependent Claim
16 words
The product of claim 18, additionally containing from 0.1 to 10% by weight of said surfuctant.
References Cited (Backward Citations)
US2599373A
Cited
US3513234A
Cited
US3575123A
Cited
US3684752A
Cited
US3876761A
Cited
US4010141A
Cited
US4053627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |