Patent US4076619A successfully refreshed from Google Patents.
US4076619A
Expired / Lapsed
US
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Hydrophilic acrylic polymers as marine filters, algae growth catalysts, and breeding stimulus for fish and invertebrates
Assignee: Polymetrics International Inc
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Filing: 1977-05-09
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Granted: 1978-02-28
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Expires: 1997-05-09
Abstract
Abstract Solutions and pelletized forms of a cross-linking, water-base hydrophilic acrylic polymers selectively absorb toxic marine life waste materials in natural or synthetic sea water. A hydrophilic acrylic polymer used in the present invention, unlike other polymeric and even hydrophilic polymeric materials, is applied as a film-forming coating or dispensed in bulk as pellets, in order to provide a healthful and natural marine like environment in accordance with the invention.
Inventors
- 👤 Kenneth A. Howery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:48
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/28; C02F1/285; A; A01; A01K; A01K63/00; A01K63/04; B; B01; B01D; B01D39/00; B01D39/02; B01D39/04; B01D39/14; B01D39/16; B01J; B01J20/00; B01J20/22; C02F3/00; C02F3/02; C02F3/10; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
131 words
An aqueous system comprising a body of water constituting the habitat of fish and invertebrates, water contacting means within said body of water, said water contacting means comprising a material formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; 14 to 22 weight percent of a forty percent by weight solids, prepolymer solution; 2.5 to 7.2 weight percent of a 3 percent by volume ammonia solution; and 3.5 to 7.2 weight percent of an epoxy resin; said contacting means functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 2
Dependent Claim
131 words
An aqueous system comprising a body of water constituting the habitat of fish and invertebrates, water contacting means within said body of water, said water contacting means comprising a material formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; 14 to 22 weight percent of a forty percent by weight solids, prepolymer solution; 2.5 to 7.2 weight percent of a 3 percent by volume ammonia solution; and 3.5 to 7.2 weight percent of an epoxy resin; said contacting means functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 3
Dependent Claim
24 words
The system of claim 1 wherein said contacting means comprises coatings of the compositions of claim 1 on substrates or in subdivided solid form.
Claim 4
Dependent Claim
129 words
A water contacting material for improving the fish and invertebrate life maintaining chemical balance within a body of water constituting the habitat of fish and invertebrates, said material being formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; 14 to 22 weight percent of 40 percent by weight solids, prepolymer solution; 2.5 to 7.2 weight percent of a 3 percent by volume ammonia solution; and 3.5 to weight 7.2 percent of an epoxy resin; said contacting material functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 5
Dependent Claim
129 words
A water contacting material for improving the fish and invertebrate life maintaining chemical balance within a body of water constituting the habitat of fish and invertebrates, said material being formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; 14 to 22 weight percent of 40 percent by weight solids, prepolymer solution; 2.5 to 7.2 weight percent of a 3 percent by volume ammonia solution; and 3.5 to weight 7.2 percent of an epoxy resin; said contacting material functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 6
Dependent Claim
19 words
The material of claim 3 in combination with substrates in the form of coatings or in subdivided solid form.
Claim 7
Dependent Claim
120 words
The process for improving the fish and invertebrate life sustaining chemical balance within a body of water constituting the habitat of fish and invertebrates, said process comprising the step of contacting said water with a material formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; fourteen to twenty-two weight percent of a forty percent solids, prepolymer solution; 2.5 to 7.2 weight percent of an epoxy resin; said material functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 8
Dependent Claim
120 words
The process for improving the fish and invertebrate life sustaining chemical balance within a body of water constituting the habitat of fish and invertebrates, said process comprising the step of contacting said water with a material formed from a composition consisting of 48 to 62 weight percent water; 10 to 18 weight percent of an aqueous solution containing 70 weight percent of a polymer consisting essentially of 60-95 weight percent of at least one alkylacrylate or alkylmethacrylate and 5-40 weight percent acrylic acid; fourteen to twenty-two weight percent of a forty percent solids, prepolymer solution; 2.5 to 7.2 weight percent of an epoxy resin; said material functioning to selectively absorb toxic marine life waste materials from said body of water.
Claim 9
Dependent Claim
30 words
The process of claim 5 wherein said material is a coating on substrates or is in subdivided solid form, and said water is passed through a bed of said material.
References Cited (Backward Citations)
US2963441A
Cited
US3217032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |