CA1227302A - Net antifouling composition - Google Patents
Net antifouling compositionInfo
- Publication number
- CA1227302A CA1227302A CA000457389A CA457389A CA1227302A CA 1227302 A CA1227302 A CA 1227302A CA 000457389 A CA000457389 A CA 000457389A CA 457389 A CA457389 A CA 457389A CA 1227302 A CA1227302 A CA 1227302A
- Authority
- CA
- Canada
- Prior art keywords
- tri
- butyl tin
- butyl
- net
- ester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Paints Or Removers (AREA)
Abstract
ABSTRACT OF THE INVENTION
There is disclosed a net antifouling composition for use on nettings and comprised of from 2 to 10 percent, preferably 3-6 percent by weight of a tri-n-butyl tin ester selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, bis tri-n-butyl tin salicylate land mixtures thereof in an organic solvent system or a water base system, perferably a water base system, for controlling algae and invertebrate growth.
There is disclosed a net antifouling composition for use on nettings and comprised of from 2 to 10 percent, preferably 3-6 percent by weight of a tri-n-butyl tin ester selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, bis tri-n-butyl tin salicylate land mixtures thereof in an organic solvent system or a water base system, perferably a water base system, for controlling algae and invertebrate growth.
Description
~ 3 BACKGROUND OF THE INVENTION
It has been found that many types of nettings, exposed to sea and lake waters, experience heavy levels of clogging due to algae and inver-tebrates. Such clogging limi-ts the Elow of water and deposited organisms in the enclosed area with con-comitant weight increases as high as 1000 percent. Such a weight increase results in the sinking of the supported netting and fish escape as well as making it practically impossible to raise the netting for cleaning. In some instances, the cutting away of netting is necessitated resulting in the loss of net-ting.
In addition to netting losses, fish may also be lost or harmed.
Salt and freshwater aquaculture systems have traditlonally been plagued by heavy fouling on nets, cages, intake pipPs and aera-tion systems. Nets particularly have suffered from heavy incrus-tation making them inordina-tely heavy, and eventually incapable of permit-ting water, flow-through. Natural food penetration, acceptable oxygen levels and detritus removal are severely restricted, leading to poor crop yield. Labor for frequent cleaning adds high costs and full cage utilization is not possible because of cage rotation during cleaning. Anti-fouling compounds have been used for centuries with only partial success. Traditional an-ti-fouling coating treatments have relied on copper and mercury compounds which are effecti~e anti-~oulants but are hiyhly toxic and can be damaging to systems in which live organisms are expected to survive.
A net finishing composition in a suitable 501ve~t system has been proposed which when coated on a net substrate, particularly a nylon net subs-trate of a mesh size of Ero~ 1/~
to 2~ inches, substantially improves the intecJrity o~ the net substrate concommitantly improvinc~ seining ~ualities in terms of improved daily catch. The net fishiny composition is com-prised of a lo~ molecular weiyht, hi~ acetate content, vinyl 3~2 chloride copolymer, a monomeric plasticizer and a polymeric plasticizer. The molecular weight of the copolymer is from 20,000 to 65,000 and oE an acetate content of from 10-20 percent by weight. The plasticizers are present ln an amount oE Erom 40 to 60 parts, preferably 50 parts per 100 parts of -the copolymer with the ra-tio on monomeric plasticizer to poly-meric plasticizer ranging from about 1:1 to 3:1, preferably
It has been found that many types of nettings, exposed to sea and lake waters, experience heavy levels of clogging due to algae and inver-tebrates. Such clogging limi-ts the Elow of water and deposited organisms in the enclosed area with con-comitant weight increases as high as 1000 percent. Such a weight increase results in the sinking of the supported netting and fish escape as well as making it practically impossible to raise the netting for cleaning. In some instances, the cutting away of netting is necessitated resulting in the loss of net-ting.
In addition to netting losses, fish may also be lost or harmed.
Salt and freshwater aquaculture systems have traditlonally been plagued by heavy fouling on nets, cages, intake pipPs and aera-tion systems. Nets particularly have suffered from heavy incrus-tation making them inordina-tely heavy, and eventually incapable of permit-ting water, flow-through. Natural food penetration, acceptable oxygen levels and detritus removal are severely restricted, leading to poor crop yield. Labor for frequent cleaning adds high costs and full cage utilization is not possible because of cage rotation during cleaning. Anti-fouling compounds have been used for centuries with only partial success. Traditional an-ti-fouling coating treatments have relied on copper and mercury compounds which are effecti~e anti-~oulants but are hiyhly toxic and can be damaging to systems in which live organisms are expected to survive.
A net finishing composition in a suitable 501ve~t system has been proposed which when coated on a net substrate, particularly a nylon net subs-trate of a mesh size of Ero~ 1/~
to 2~ inches, substantially improves the intecJrity o~ the net substrate concommitantly improvinc~ seining ~ualities in terms of improved daily catch. The net fishiny composition is com-prised of a lo~ molecular weiyht, hi~ acetate content, vinyl 3~2 chloride copolymer, a monomeric plasticizer and a polymeric plasticizer. The molecular weight of the copolymer is from 20,000 to 65,000 and oE an acetate content of from 10-20 percent by weight. The plasticizers are present ln an amount oE Erom 40 to 60 parts, preferably 50 parts per 100 parts of -the copolymer with the ra-tio on monomeric plasticizer to poly-meric plasticizer ranging from about 1:1 to 3:1, preferably
2:1.
In United States Patent No. 4,010,141 to Onozuka et al.
there is disclosed a plurality of tin compounds, and in parti-cular dimethyl, n-alkyl tin esters of improved antifouling characteristics. While such trialkyl tin esters have shown some efficacy, such trialkyl tin esters are compatible with the plas-ticizers in the resin and can readily leach out or can be locked into the film after application to a netting substrate.
OBJECTS OF THE INVENTION
An objec-t of the present invention is to provide a net antifouling composition exhibiting substantial efficacy over extended periods of -time after netting application.
Another object of the present invention is to provide a net antifouling composition readily applied to a netting sub-strate.
Still another object oE the present invention is to provide a net antifouling composition which does not delete-riously affect -the fish catch.
Yet another object of the present invention is to pro-vide a net antifouling composition which leaches out at a con-trolled rate from the net substrate.
A further object of the present invention is to provide a net antifoulin~ composi-tion having a soft enough finish and being flexible which will not damage the fish when they brush against the treated netting.
; ~ ~
Still yet another object of the present invention is to provide a net antifouling composition capable o-f lowering operating costs resulting from reduced labor time in cleaning and maintenance of tlle netting.
~ nother object of the present invention is to provide a nc-~t anti-Eouling composition red-lcible with water instead of -~lammable solvents or tars allowing for simpler and safer application.
Still another object of the present invention is to provide a net antifouling composition that does not wear off the netting abovc the water line.
Yet another object of the present invention is to provide a net antifouling comyosition capable of protecting a treated nct e~posed to sun-ligh-t.
Still yet another object of the present invention is to provide a net antifouling composition more resistant to abrasion.
SU~IMARY OF TIIE INVeNTION
These and other objects o-E the present invention are achieved by a net antifouling compos:ition ~or use 011 nettings and comprised of from 2 to 10 percent, preferably 3-6 percent by weight of a tri-n-butyl tin ester selected from the group consisting o~ tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, bis tri-n-butyl tin salicy-late and mirctures thereof in an organic solvent system or a water base system, preferably a water base system~ for controlling algac and inverte-brate growtll. In one aspect of the presellt invelltion, the tri-n-butyl tin esters may be admi~eci with a net finishing composition as clescribed above.
BRIEF DESCRIPTION OF TIIE DRAWING
~n understanding of tllc invention will be facilltated by re~er-ence to the photograplls on the dra~Ying and the accompanying detailed description, wherein:
Figure I are photograplls of a fish netting treated with the present invelltion; and Figure _ are photograplls of untreated fish netting.
..j~
lZ;~73(~Z
DETAILED DESCRlPll[ON O~ THE INVENTION
The tri-n-butyl tin esters used in the present invention are selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof. The tri-n-butyl tin ester is ~dded in an amount of from 2 to 10, preferably 3-6 percent by weight to either an organic sol~ent system or a water base system, preferably a wQter base system.
The essential components of a concentrate forming the preservative system of the present invention are a tri-n-butyl tin ester and filler such as clay. The tri-n-butyl tin es-ter ~nd filler are mixed in a ratio of 1 part of tri-n-butyl tin ester to 1-4 parts of filler and more preferably 1 part of bis tri-n-butyl tin ester to 2-3 parts of filler. The filler acts as a buffering agent and helps releases the toxicant, tri-n-butyl tin ester. In preparation for treating the netting, the preservative system concen-trate is added to a water base or organic base solvent system.
The essenti01 components of the water base sol~ent system are the tri-n-butyl tin ester and filler, such as clay concentrate in addition to binders such as acry~ic/vinyl latexes, styrene latex, styrene/acrylic latexes, vinyl chloride, vinyl chloride acetate, acrylonitrile latexes and the like~ Also added to the water based solvent system are wetting agents, suspending agents, coaleseent agents, pigments and water.
If an organic base solvent system is used, the essential eomponents of the organic base system are tri-n-butyl tin ester, a solution resin, such as a vinyl chloride - vinyl acetate co-polymer, plasticizers, stabili2ers, pigments and organic solYents.
In one embodiment of the present invention the tri~n-butyl tin ester seleeted from the group consisting of tri-n-butyl tin linoleate, bis (tri-n-butyl tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof, is added in an amount rom 2 to 10 percent by weignt to a net finishin~ composition comprised of a resin system dissolved in a solvent system, such that th~ solids content of the resulting composition of matter is not iess th~n about 20% by weight, and between 2û% to about 50% solids, with a preferable solids range of abou~ 30 to 40~ by weight.
~7302 A method of applieation of the net antifouling composition of the present invention is achieved by dipping a net in a tank containing the preservati~e system admixed with a solvent system. When the net is dipped in the tank that portion of the net dipped should be allowed to set in the tank for about 10 seconds to about 30minutes with a preferable time limit being approximately 3-5 minutes.
Although the net treated with the preservative system in a solvent system can beutilized when it becomes dry to the touch it is preferable that the net antifouling composition be allowed to cure on the net. The purpose of curing allows for the ~aporization or evaporation of the solvent system and the absorbtion of the preservative system into the net. The preservative system should be allowed to cure from about 4 to 96 hours, with a preferable curing time of 48 to 72 hours prior to use.
It has been fcund that a net treated with the antifouling composition having a minumum weight pick u~ of 30% on the net of the present invention results in a coated net exhibiting after a long term test period an increase of weight of only about 5 percent as ~ompared to a control net (without the orgnno tin ester coating) exhibiting a weight increase of greater than 500 percent.
Referring to FIGS. 1 and 2, there are shown photographs of treated and untreatednets with the net antifouling composition demonstrating the efficacy of the present invention. Such efficacy has been repeatedly demonstrated whether in the fresh waters of tha Great Lakes Region or the salt water of the Florida Keys, the Gulf, Cepe Hatter~, ova Scotie ~nd the like.
_5 Z73~2 ~-E~AMPL~ OP THR INY~NTION
The following examples are illustrative of the present invention:
E~AMPL~ 1 A nylon fish net is treated in Q water based net antifouling composition of the components as set forth in Table I, below:
TABLE I
COMPONENTS PARTS
Water 42.00 5Odium Tri Poly Phosphate .20 Non-Ionic Surface Active Agent .20 Hydroxy Ethyl Cellulose 50 Tri-n-butyl tin linoleate 5.30 China cl~y 13.35 Anti-Foaming Agent .25 Ethylene Glycol 1.10 Diethylene Glycol Mono Ethyl Ether 1.10 Pigments 3.00 Vinyl chloride acrylic copolymer latex 33.00 100.00 The solution i5 introduced into a trough at arnbient temperature. A fishin~ net having a mesh si~e in the range of from .25 to 24 inches is continously introduced into the trough and withdrawn, such that incrementAl sections of net r~main in the solution of from 10 seconds to 10 minutes or can be dipped in a tank and Rllowed to drain.
The antifouling composition costed on the net dries in flbout 4 to 6 hours. The net antifouling composition i~ permitted to cure on the net for ~ period of approximately 72 hours before net usa~e.
]e~MPLE ~
A nylon fish net is treRted in an or~anic solven~ b~sed net antifouling cornposi-tlon hQving the following component~:
~L2X7~2 TA~LE II
COMPONENTS PARTS
Xylene-xylol(ortho) Aromatic 40.30 solvent M.I.B.K. (methyl isobutyl ketone) 30.35 Icetone solvent Polymeric plasticizer 2.80 dibasic acid and glycol 409/429 Monsanto Chemical Di octyl/phthalate (DOP) Di-2 ethyl hexy/hthalate) 2.45 Vinyl chloride-vinyl acetate 16.80 copolymer - resin Ex: VC113/Borden Chemical ~SUV stabilizer .10 Black Pigment 4.10 8is (tri-n-butyl)tin succinate .81 Tri-n-8utyltin benzoate .96 ~ 0 .
12Z~30;2 A net coated with the above referenced antl~ouling composition was submerged in the ocean off of the British Coast along with a control net which was not treated for a period of 22 weeks. The control net treated with the net antifouling composi~ion had an initisl weight of 377 pounds prior to being deposited on the sea floor. The untreated net ttreated without antifouling composition) had an initial weight of 418 pounds prior to submersion.
Now referring to Fig. 1 there is s~own a photograph of the net treated with the ~ntifouling composition after it was removed from the sea floor. It was found toweigh 660 pounds after its remo~al. This was a weight increase of only 43.296.
Additionally, it was found that approximately 10% of the treated net was fouled, with the primary fouling organism being hydrozoan.
Now referring to Fig. a, there is shown a photograph of the control net after its remo~/al from the sea floor. I~pon removal it was found to weigh 1190 pounds, thus having a weight increase of almost 185%. Approximately, 90q6 of the net was fouled with th~ primary fouling organisms being hydrozoan, mussels and sea squirts.
While the invention has been described in connection with the exemplary embodiment thereof, it will be understood that many modifications will be apparent to those of ordinary skill in the art and thst this application is intended to cover any adaptions or Yariations thereof. Therefore, it is manifestly intended that this invention be only limited by the claims and the equivalents thereof.
In United States Patent No. 4,010,141 to Onozuka et al.
there is disclosed a plurality of tin compounds, and in parti-cular dimethyl, n-alkyl tin esters of improved antifouling characteristics. While such trialkyl tin esters have shown some efficacy, such trialkyl tin esters are compatible with the plas-ticizers in the resin and can readily leach out or can be locked into the film after application to a netting substrate.
OBJECTS OF THE INVENTION
An objec-t of the present invention is to provide a net antifouling composition exhibiting substantial efficacy over extended periods of -time after netting application.
Another object of the present invention is to provide a net antifouling composition readily applied to a netting sub-strate.
Still another object oE the present invention is to provide a net antifouling composition which does not delete-riously affect -the fish catch.
Yet another object of the present invention is to pro-vide a net antifouling composition which leaches out at a con-trolled rate from the net substrate.
A further object of the present invention is to provide a net antifoulin~ composi-tion having a soft enough finish and being flexible which will not damage the fish when they brush against the treated netting.
; ~ ~
Still yet another object of the present invention is to provide a net antifouling composition capable o-f lowering operating costs resulting from reduced labor time in cleaning and maintenance of tlle netting.
~ nother object of the present invention is to provide a nc-~t anti-Eouling composition red-lcible with water instead of -~lammable solvents or tars allowing for simpler and safer application.
Still another object of the present invention is to provide a net antifouling composition that does not wear off the netting abovc the water line.
Yet another object of the present invention is to provide a net antifouling comyosition capable of protecting a treated nct e~posed to sun-ligh-t.
Still yet another object of the present invention is to provide a net antifouling composition more resistant to abrasion.
SU~IMARY OF TIIE INVeNTION
These and other objects o-E the present invention are achieved by a net antifouling compos:ition ~or use 011 nettings and comprised of from 2 to 10 percent, preferably 3-6 percent by weight of a tri-n-butyl tin ester selected from the group consisting o~ tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, bis tri-n-butyl tin salicy-late and mirctures thereof in an organic solvent system or a water base system, preferably a water base system~ for controlling algac and inverte-brate growtll. In one aspect of the presellt invelltion, the tri-n-butyl tin esters may be admi~eci with a net finishing composition as clescribed above.
BRIEF DESCRIPTION OF TIIE DRAWING
~n understanding of tllc invention will be facilltated by re~er-ence to the photograplls on the dra~Ying and the accompanying detailed description, wherein:
Figure I are photograplls of a fish netting treated with the present invelltion; and Figure _ are photograplls of untreated fish netting.
..j~
lZ;~73(~Z
DETAILED DESCRlPll[ON O~ THE INVENTION
The tri-n-butyl tin esters used in the present invention are selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof. The tri-n-butyl tin ester is ~dded in an amount of from 2 to 10, preferably 3-6 percent by weight to either an organic sol~ent system or a water base system, preferably a wQter base system.
The essential components of a concentrate forming the preservative system of the present invention are a tri-n-butyl tin ester and filler such as clay. The tri-n-butyl tin es-ter ~nd filler are mixed in a ratio of 1 part of tri-n-butyl tin ester to 1-4 parts of filler and more preferably 1 part of bis tri-n-butyl tin ester to 2-3 parts of filler. The filler acts as a buffering agent and helps releases the toxicant, tri-n-butyl tin ester. In preparation for treating the netting, the preservative system concen-trate is added to a water base or organic base solvent system.
The essenti01 components of the water base sol~ent system are the tri-n-butyl tin ester and filler, such as clay concentrate in addition to binders such as acry~ic/vinyl latexes, styrene latex, styrene/acrylic latexes, vinyl chloride, vinyl chloride acetate, acrylonitrile latexes and the like~ Also added to the water based solvent system are wetting agents, suspending agents, coaleseent agents, pigments and water.
If an organic base solvent system is used, the essential eomponents of the organic base system are tri-n-butyl tin ester, a solution resin, such as a vinyl chloride - vinyl acetate co-polymer, plasticizers, stabili2ers, pigments and organic solYents.
In one embodiment of the present invention the tri~n-butyl tin ester seleeted from the group consisting of tri-n-butyl tin linoleate, bis (tri-n-butyl tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof, is added in an amount rom 2 to 10 percent by weignt to a net finishin~ composition comprised of a resin system dissolved in a solvent system, such that th~ solids content of the resulting composition of matter is not iess th~n about 20% by weight, and between 2û% to about 50% solids, with a preferable solids range of abou~ 30 to 40~ by weight.
~7302 A method of applieation of the net antifouling composition of the present invention is achieved by dipping a net in a tank containing the preservati~e system admixed with a solvent system. When the net is dipped in the tank that portion of the net dipped should be allowed to set in the tank for about 10 seconds to about 30minutes with a preferable time limit being approximately 3-5 minutes.
Although the net treated with the preservative system in a solvent system can beutilized when it becomes dry to the touch it is preferable that the net antifouling composition be allowed to cure on the net. The purpose of curing allows for the ~aporization or evaporation of the solvent system and the absorbtion of the preservative system into the net. The preservative system should be allowed to cure from about 4 to 96 hours, with a preferable curing time of 48 to 72 hours prior to use.
It has been fcund that a net treated with the antifouling composition having a minumum weight pick u~ of 30% on the net of the present invention results in a coated net exhibiting after a long term test period an increase of weight of only about 5 percent as ~ompared to a control net (without the orgnno tin ester coating) exhibiting a weight increase of greater than 500 percent.
Referring to FIGS. 1 and 2, there are shown photographs of treated and untreatednets with the net antifouling composition demonstrating the efficacy of the present invention. Such efficacy has been repeatedly demonstrated whether in the fresh waters of tha Great Lakes Region or the salt water of the Florida Keys, the Gulf, Cepe Hatter~, ova Scotie ~nd the like.
_5 Z73~2 ~-E~AMPL~ OP THR INY~NTION
The following examples are illustrative of the present invention:
E~AMPL~ 1 A nylon fish net is treated in Q water based net antifouling composition of the components as set forth in Table I, below:
TABLE I
COMPONENTS PARTS
Water 42.00 5Odium Tri Poly Phosphate .20 Non-Ionic Surface Active Agent .20 Hydroxy Ethyl Cellulose 50 Tri-n-butyl tin linoleate 5.30 China cl~y 13.35 Anti-Foaming Agent .25 Ethylene Glycol 1.10 Diethylene Glycol Mono Ethyl Ether 1.10 Pigments 3.00 Vinyl chloride acrylic copolymer latex 33.00 100.00 The solution i5 introduced into a trough at arnbient temperature. A fishin~ net having a mesh si~e in the range of from .25 to 24 inches is continously introduced into the trough and withdrawn, such that incrementAl sections of net r~main in the solution of from 10 seconds to 10 minutes or can be dipped in a tank and Rllowed to drain.
The antifouling composition costed on the net dries in flbout 4 to 6 hours. The net antifouling composition i~ permitted to cure on the net for ~ period of approximately 72 hours before net usa~e.
]e~MPLE ~
A nylon fish net is treRted in an or~anic solven~ b~sed net antifouling cornposi-tlon hQving the following component~:
~L2X7~2 TA~LE II
COMPONENTS PARTS
Xylene-xylol(ortho) Aromatic 40.30 solvent M.I.B.K. (methyl isobutyl ketone) 30.35 Icetone solvent Polymeric plasticizer 2.80 dibasic acid and glycol 409/429 Monsanto Chemical Di octyl/phthalate (DOP) Di-2 ethyl hexy/hthalate) 2.45 Vinyl chloride-vinyl acetate 16.80 copolymer - resin Ex: VC113/Borden Chemical ~SUV stabilizer .10 Black Pigment 4.10 8is (tri-n-butyl)tin succinate .81 Tri-n-8utyltin benzoate .96 ~ 0 .
12Z~30;2 A net coated with the above referenced antl~ouling composition was submerged in the ocean off of the British Coast along with a control net which was not treated for a period of 22 weeks. The control net treated with the net antifouling composi~ion had an initisl weight of 377 pounds prior to being deposited on the sea floor. The untreated net ttreated without antifouling composition) had an initial weight of 418 pounds prior to submersion.
Now referring to Fig. 1 there is s~own a photograph of the net treated with the ~ntifouling composition after it was removed from the sea floor. It was found toweigh 660 pounds after its remo~al. This was a weight increase of only 43.296.
Additionally, it was found that approximately 10% of the treated net was fouled, with the primary fouling organism being hydrozoan.
Now referring to Fig. a, there is shown a photograph of the control net after its remo~/al from the sea floor. I~pon removal it was found to weigh 1190 pounds, thus having a weight increase of almost 185%. Approximately, 90q6 of the net was fouled with th~ primary fouling organisms being hydrozoan, mussels and sea squirts.
While the invention has been described in connection with the exemplary embodiment thereof, it will be understood that many modifications will be apparent to those of ordinary skill in the art and thst this application is intended to cover any adaptions or Yariations thereof. Therefore, it is manifestly intended that this invention be only limited by the claims and the equivalents thereof.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A fishing net coated with an antifouling composition comprised of a tri-n-butyl tin ester selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof, said tri-n-butyl tin ester being present in an amount of from about 3 to 6 percent by weight.
2. The fishing net as defined in claim 1 wherein said tri-n-butyl tin ester is tri-n-butyl tin linoleate.
3. The fishing net as defined in claim 2 wherein a filler is added to said tri-n-butyl tin ester to control leach out of said tri-n-butyl tin ester.
4. A process for treating a fishing net to impart anti-fouling properties which comprises contacting said fishing net with an antifouling composition comprised of a tri-n-butyl tin ester selected from the group consisting of tri-n-butyl tin linoleate, bis(tri-n-butyl) tin succinate, tri-n-butyl tin benzoate, tri-n-butyl tin salicylate and mixtures thereof, said tri-n-butyl tin ester being present in an amount of from about 3 to 6 percent by weight in a solvent system.
5. The process as defined in claim 4 wherein said tri-n-butyl tin ester is tri-n-butyl tin linoleate.
6. The process as defined in claim 5 wherein a filler is added to said tri-n-butyl ester to control leach out of said tri-n-butyl tin ester
7. The process as defined in claim 4 wherein said tri-n-butyl tin ester is in a resin system dissolved in said solvent system to form a mixture having a solids content of from 20% to about 50% solids by weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/508,520 | 1983-06-27 | ||
| US06/508,520 US4698097A (en) | 1978-03-20 | 1983-06-27 | Net antifouling composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227302A true CA1227302A (en) | 1987-09-29 |
Family
ID=24023070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000457389A Expired CA1227302A (en) | 1983-06-27 | 1984-06-26 | Net antifouling composition |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1227302A (en) |
| NO (1) | NO842573L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO342674B1 (en) * | 2017-03-15 | 2018-06-25 | Pe Bjoerdal As | Impregnator and drought and method of using the same |
-
1984
- 1984-06-26 CA CA000457389A patent/CA1227302A/en not_active Expired
- 1984-06-26 NO NO842573A patent/NO842573L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO842573L (en) | 1984-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1338993C (en) | Antifouling coating composition | |
| DK1998619T3 (en) | BIOCID COMPOSITION WITH ZINC PYRITHION AND A PYRROLIC DERIVATIVE | |
| US5096488A (en) | Antifouling composition | |
| JPS6017764B2 (en) | aquatic creature repellent | |
| RU2270847C2 (en) | Paint for nonfouling coatings | |
| CN1304496C (en) | Antifouling paint composition | |
| US4990547A (en) | Antifouling composition | |
| US4661400A (en) | Net antifouling composition | |
| EP0408352A1 (en) | Antifouling composition | |
| US5082722A (en) | Process for treating netting with an antifouling composition and product produced thereby. | |
| CA1227302A (en) | Net antifouling composition | |
| US5334389A (en) | Antifouling coating and method for using same | |
| JP2002080778A (en) | Antifouling coating composition, coating film thereof, fishing gear/fishnet coated with such coating film and antifouling method for fishing gear/fishnet | |
| KR100314105B1 (en) | Antifouling coating composition and protection method of structure using the same | |
| US4698097A (en) | Net antifouling composition | |
| US5104618A (en) | Composition for treating netting | |
| US4297803A (en) | Composition useful for inhibiting adhesion and propagation of undesirable algae and/or shellfish on articles | |
| CA1314347C (en) | Marine anti-fouling coating composition | |
| JPH11500457A (en) | Use of organoboron compounds as antifouling agents | |
| US4168174A (en) | Marine antifoulant processes | |
| US4554092A (en) | Preservative system composition for non-porous surfaces and wooden surfaces | |
| US4555356A (en) | Wood preservative system composition | |
| JP3120731B2 (en) | Underwater antifouling agent | |
| JPS63280779A (en) | Water-based underwater antifouling agent | |
| US4748188A (en) | Process for treating wood products with an antifouling/preservative composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |