US4385134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organotin polysiloxane and acrylic antifouling coating
Assignee: Ameron Inc
•
Filing: 1981-10-19
•
Granted: 1983-05-24
•
Expires: 2001-10-19
Abstract
Abstract A marine antifouling coating composition comprises an acrylic resin such as methyl methacrylate in the range of from 6 to 20% by weight, a polysiloxane having substituted thereon tributyltin moieties that are toxic to marine organisms. The polysiloxane is in the range of from 7 to 25% by weight. The acrylic resin and polysiloxane are dissolved in a solvent in the range of from 18 to 52% by weight with the balance of the composition in the range of from 10 to 65% by weight being primarily conventional marine paint and toxicant agents for augmenting action of the tributyltin polysiloxane. Copper or copper salts that are effective for inhibiting growth of marine organisms and facilitating release of toxins can also be included.
Inventors
- 👤 Raymond E. Foscante
- 👤 Charles D. Stevens
- 👤 Lee M. Parson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:13
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; C09D5/16; C09D5/1606; C09D5/1637; C09D5/1643; C09D133/00; C09D133/04; C09D133/06; C08; C08L; C08L83/00; C08L83/04; C08L83/08
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
250 words
A marine antifouling coating composition comprising: an acrylic resin selected from the group consisting of methyl methacrylate, ethyl methacrylate, propyl methacrylate, isobutyl methacrylate, and n-butyl methacrylate in the range of from 6 to 20 percent by weight; an organotin polysiloxane having the formula ##STR4## where m is an average of up to about ten, each X is independently selected from the group consisting of R and Y; where each R is selected from the group consisting of hydrogen and alkyl and alkoxyalkyl radicals containing less than six carbon atoms; where each Y is a trisubstituted tin radical having the formula ##STR5## where R 1 , R 2 , and R 3 are independently selected from the group consisting of alkyl, cycloalkyl and aryl radicals and R 1 , R 2 , and R 3 contain collectively up to 18 carbon atoms; and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 0.7:5 to 5:5, the organotin polysiloxane being in the range of from 7 to 25 percent by weight; solvent for the acrylic resin and polysiloxane in the range of from 18 to 52 percent by weight; and a balance in the range of from 10 to 65 percent by weight of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, copper powder, cuprous salts, zinc oxide, algicides, silica, clay, talc, metal oxides, plasticizers and slightly water soluble resins.
Claim 2
Dependent Claim
250 words
A marine antifouling coating composition comprising: an acrylic resin selected from the group consisting of methyl methacrylate, ethyl methacrylate, propyl methacrylate, isobutyl methacrylate, and n-butyl methacrylate in the range of from 6 to 20 percent by weight; an organotin polysiloxane having the formula ##STR4## where m is an average of up to about ten, each X is independently selected from the group consisting of R and Y; where each R is selected from the group consisting of hydrogen and alkyl and alkoxyalkyl radicals containing less than six carbon atoms; where each Y is a trisubstituted tin radical having the formula ##STR5## where R 1 , R 2 , and R 3 are independently selected from the group consisting of alkyl, cycloalkyl and aryl radicals and R 1 , R 2 , and R 3 contain collectively up to 18 carbon atoms; and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 0.7:5 to 5:5, the organotin polysiloxane being in the range of from 7 to 25 percent by weight; solvent for the acrylic resin and polysiloxane in the range of from 18 to 52 percent by weight; and a balance in the range of from 10 to 65 percent by weight of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, copper powder, cuprous salts, zinc oxide, algicides, silica, clay, talc, metal oxides, plasticizers and slightly water soluble resins.
Claim 3
Dependent Claim
24 words
A composition as recited in claim 1 wherein the acrylic resin is present in the range of from 8 to 12 percent by weight.
Claim 4
Dependent Claim
24 words
A composition as recited in claim 2 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 5
Dependent Claim
24 words
A composition as recited in claim 1 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 6
Dependent Claim
31 words
A composition as recited in claim 1 wherein the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5.
Claim 7
Dependent Claim
25 words
A composition as recited in claim 5 wherein the acrylic resin comprises polymethyl methacrylate in the range of from 8 to 12 percent by weight.
Claim 8
Dependent Claim
24 words
A composition as recited in claim 6 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 9
Dependent Claim
24 words
A composition as recited in claim 5 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 10
Dependent Claim
35 words
A composition as recited in claim 1 comprising a copper base antifouling agent selected from the group consisting of copper powder and cuprous salts in the range of from 10 to 30 percent by weight.
Claim 11
Dependent Claim
24 words
A composition as recited in claim 9 wherein the acrylic resin is present in the range of from 8 to 12 percent by weight.
Claim 12
Dependent Claim
24 words
A composition as recited in claim 10 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 13
Dependent Claim
24 words
A composition as recited in claim 9 wherein the organotin polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 14
Dependent Claim
37 words
A composition as recited in any of claims 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, comprising a plasticizer for acrylic resin in the range of from 0.5 to 5 percent by weight.
Claim 15
Dependent Claim
37 words
A composition as recited in any of claims 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, comprising a slightly water soluble resin in the range of from 1 to 10 percent by weight.
Claim 16
Dependent Claim
36 words
A composition as recited in any of claims 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, wherein the solvent is present in the range of from 24 to 36 percent by weight.
Claim 17
Dependent Claim
37 words
A composition as recited in any of claims 2, 3, 4, 5, 6, 7 or 8 wherein the balance of marine paint and toxicant agents is in the range of from 30 to 45 percent by weight.
Claim 18
Dependent Claim
20 words
A composition as recited in claim 1 wherein m in the formula is an average of at least about 5.
Claim 19
Dependent Claim
20 words
A composition as recited in claim 17 wherein R 1 , R 2 , and R 3 are each butyl.
Claim 20
Dependent Claim
20 words
A composition as recited in claim 1 wherein R 1 , R 2 , and R 3 are each butyl.
Claim 21
Dependent Claim
20 words
A composition as recited in claim 19 wherein R is selected from the group consisting of hydrogen and ethyl radical.
Claim 22
Dependent Claim
31 words
A composition as recited in claim 20 wherein the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5.
Claim 23
Dependent Claim
20 words
A composition as recited in claim 21 wherein m in the formula is an average of at least about 5.
Claim 24
Dependent Claim
26 words
A composition as recited in claim 1 wherein the weight ratio of acrylic resin to organotin polysiloxane is in the range of from 0.5 to 1.0.
Claim 25
Dependent Claim
26 words
A composition as recited in claim 23 wherein the weight ratio of acrylic resin to organotin polysiloxane is in the range of from 0.6 to 0.8.
Claim 26
Dependent Claim
46 words
A composition as recited in claim 1 comprising a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts wherein the weight ratio of organotin polysiloxane to the copper bearing antifouling agent is in the range of from 0.5 to 1.5.
Claim 27
Dependent Claim
151 words
An antifouling coating composition comprising: an acrylic resin binder; an organotin polysiloxane having the formula: ##STR6## where m is an average of up to about 10, each X is independently selected from the group consisting of R and Y, where each R is selected from the group consisting of hydrogen and ethyl radical, where each Y is a tributyl tin radical and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range from 0.7:5 to 5:5; copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts; a volatile organic solvent for the acrylic resin and organotin polysiloxane; and a sufficient balance of paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, zinc oxides, algicides, silica, clay, talc, metal oxides, plasticizers and slightly water soluble resin for forming a marine paint.
Claim 28
Dependent Claim
151 words
An antifouling coating composition comprising: an acrylic resin binder; an organotin polysiloxane having the formula: ##STR6## where m is an average of up to about 10, each X is independently selected from the group consisting of R and Y, where each R is selected from the group consisting of hydrogen and ethyl radical, where each Y is a tributyl tin radical and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range from 0.7:5 to 5:5; copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts; a volatile organic solvent for the acrylic resin and organotin polysiloxane; and a sufficient balance of paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, zinc oxides, algicides, silica, clay, talc, metal oxides, plasticizers and slightly water soluble resin for forming a marine paint.
Claim 29
Dependent Claim
30 words
A composition as recited in claim 26 wherein the weight ratio of the organotin polysiloxane to the copper bearing antifouling agent is in the range of from 0.5 to 1.5.
Claim 30
Dependent Claim
29 words
A composition as recited in claim 27 wherein the copper bearing antifouling agent is present in the range of from 10 to 30 percent by weight of the composition.
Claim 31
Dependent Claim
26 words
A composition as recited in claim 27 wherein the weight ratio of acrylic resin to organotin polysiloxane is in the range of from 0.5 to 1.0.
Claim 32
Dependent Claim
26 words
A composition as recited in claim 27 wherein the weight ratio of acrylic resin to organotin polysiloxane is in the range of from 0.6 to 0.8.
Claim 33
Dependent Claim
26 words
A composition as recited in claim 26 wherein the weight ratio of acrylic resin to organotin polysiloxane is in the range of from 0.5 to 1.0.
Claim 34
Dependent Claim
28 words
A composition as recited in claim 31 wherein the copper bearing antifouling agent is in the range of from 10 to 30 percent by weight of the composition.
Claim 35
Dependent Claim
27 words
A composition as recited in claim 32 wherein the organotin polysiloxane is present in the range of from 7 to 25 percent by weight of the composition.
Claim 36
Dependent Claim
27 words
A composition as recited in claim 33 wherein the acrylic resin is present in the range of from 6 to 20 percent by weight of the composition.
Claim 37
Dependent Claim
26 words
A composition as recited in claim 26 wherein the organotin polysiloxane is present in the range of from 7 to 25% by weight of the composition.
Claim 38
Dependent Claim
29 words
A composition as recited in claim 35 wherein the copper bearing antifouling agent is present in the range of from 10 to 30 percent by weight of the composition.
Claim 39
Dependent Claim
155 words
A marine antifouling paint comprising: an acrylic resin binder; an organotin polysiloxane having the formula ##STR7## where m is an average of up to about 10, each X is selected independently from the group consisting of R and Y, where each R is selected from the group consisting of hydrogen and alkyl and alkoxyalkyl radicals containing less than six carbon atoms, where each Y is a trisubstituted tin radical having the formula ##STR8## where R 1 , R 2 , and R 3 are independently selected from the group consisting of alkyl, cycloaklky and aryl radicals and R 1 , R 2 , and R 3 contain collectively up to about 18 carbon atoms and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 0.7:5 to 5:5; and a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts.
Claim 40
Dependent Claim
155 words
A marine antifouling paint comprising: an acrylic resin binder; an organotin polysiloxane having the formula ##STR7## where m is an average of up to about 10, each X is selected independently from the group consisting of R and Y, where each R is selected from the group consisting of hydrogen and alkyl and alkoxyalkyl radicals containing less than six carbon atoms, where each Y is a trisubstituted tin radical having the formula ##STR8## where R 1 , R 2 , and R 3 are independently selected from the group consisting of alkyl, cycloaklky and aryl radicals and R 1 , R 2 , and R 3 contain collectively up to about 18 carbon atoms and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 0.7:5 to 5:5; and a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts.
Claim 41
Dependent Claim
28 words
A marine paint as recited in claim 37 wherein the organotin polysiloxane is present in the range of from 7 to 25 percent by weight of the paint.
Claim 42
Dependent Claim
30 words
A marine paint as recited in claim 38 wherein the copper bearing antifouling agent is present in the range of from 10 to 30 percent by weight of the paint.
Claim 43
Dependent Claim
30 words
A marine paint as recited in claim 37 wherein the copper bearing antifouling agent is present in the range of from 10 to 30 percent by weight of the paint.
Claim 44
Dependent Claim
35 words
A marine paint as recited in any of claims 37, 38, 39, or 40, wherein the weight ratio of organotin polysiloxane to copper bearing antifouling agent is in the range of from 0.5 to 1.5.
Claim 45
Dependent Claim
34 words
A marine paint as recited in any of claims 37, 38, 39, or 40 wherein the acrylic resin is present in the range of from 6 to 20 percent by weight of the paint.
Claim 46
Dependent Claim
223 words
A marine antifouling coating composition comprising: polymethyl metharcrylate in the range of from about 8 to 12 percent by weight; an organotin polysiloxane having the formula ##STR9## where m is an average of at least about 5, each X is independently selected from the group consisting of R and Y, wherein each R is selected from the group consisting of hydrogen and ethyl radical, where Y is a tributyl tin radical and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5, the organotin polysiloxane being present in the range of from 12 to 16 percent by weight; a solvent for the acrylic resin and organotin polysiloxane in the range of from 24 to 36 percent by weight; a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts in the range of from 10 to 30 percent by weight; a plasticizer compatible with the acrylic resin and organotin polysiloxane in the range of from 0.5 to 5 percent by weight; rosin in the range of from 1 to 10 percent by weight; and a balance of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, zinc oxide, algicides, silica, clay, talc, and metal oxides.
Claim 47
Dependent Claim
223 words
A marine antifouling coating composition comprising: polymethyl metharcrylate in the range of from about 8 to 12 percent by weight; an organotin polysiloxane having the formula ##STR9## where m is an average of at least about 5, each X is independently selected from the group consisting of R and Y, wherein each R is selected from the group consisting of hydrogen and ethyl radical, where Y is a tributyl tin radical and the X's are selected so that the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5, the organotin polysiloxane being present in the range of from 12 to 16 percent by weight; a solvent for the acrylic resin and organotin polysiloxane in the range of from 24 to 36 percent by weight; a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts in the range of from 10 to 30 percent by weight; a plasticizer compatible with the acrylic resin and organotin polysiloxane in the range of from 0.5 to 5 percent by weight; rosin in the range of from 1 to 10 percent by weight; and a balance of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, zinc oxide, algicides, silica, clay, talc, and metal oxides.
Claim 48
Dependent Claim
145 words
A marine antifouling coating composition comprising: an acrylic resin in the range of from 6 to 20 percent by weight; a polysiloxane having substituted thereon trisubstituted organotin moieties that are toxic to marine organisms, the proportion of organotin moiety relative to the silicon content of the polysiloxane being sufficient for the polysiloxane to be compatible with the acrylic resin, the polysiloxane being in the range of from 7 to 25 percent by weight; a solvent for the acrylic resin and the polysiloxane, in the range of from 18 to 52 percent by weight; and a balance in the range of from 10 to 65 percent by weight of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, copper powder, cuprous salts, zinc oxide, algicides, silica, clay, talc, metal oxides, plasticizers, and slightly water soluble resins.
Claim 49
Dependent Claim
145 words
A marine antifouling coating composition comprising: an acrylic resin in the range of from 6 to 20 percent by weight; a polysiloxane having substituted thereon trisubstituted organotin moieties that are toxic to marine organisms, the proportion of organotin moiety relative to the silicon content of the polysiloxane being sufficient for the polysiloxane to be compatible with the acrylic resin, the polysiloxane being in the range of from 7 to 25 percent by weight; a solvent for the acrylic resin and the polysiloxane, in the range of from 18 to 52 percent by weight; and a balance in the range of from 10 to 65 percent by weight of primarily marine paint and toxicant agents selected from the group consisting of pigment powders, fillers, thickening agents, antisettling agents, copper powder, cuprous salts, zinc oxide, algicides, silica, clay, talc, metal oxides, plasticizers, and slightly water soluble resins.
Claim 50
Dependent Claim
35 words
A composition as recited in claim 44 comprising a copper bearing antifouling agent selected from the group consisting of copper powder and cuprous salts in the range of from 10 to 30 percent by weight.
Claim 51
Dependent Claim
25 words
A composition as recited in claim 45 wherein the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5.
Claim 52
Dependent Claim
25 words
A composition as recited in claim 44 wherein the ratio of tin atoms to silicon atoms is in the range of from 1.3:5 to 2.5:5.
Claim 53
Dependent Claim
23 words
A composition as recited in claim 47 wherein the polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 54
Dependent Claim
23 words
A composition as recited in claim 44 wherein the polysiloxane is present in the range of from 12 to 16 percent by weight.
Claim 55
Dependent Claim
33 words
A composition as recited in any of claims 44, 45, 46, 47, 48 or 49 wherein the acrylic resin comprises polymethyl methacrylate in the range of from 8 to 12 percent by weight.
Claim 56
Dependent Claim
42 words
A composition as recited in any of claims 44, 46, 47, 48, or 49 comprising a copper base antifouling agent selected from the group consisting of copper powder and cuprous salts in the range of from 10 to 20 percent by weight.
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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |