SU522803A3 - Coating composition - Google Patents

Description

(54) COMPOSITION FOR COATINGS

This invention relates to a liquid composition of IBM for producing underwater coatings and containing organotin compounds which prevent the surface of the coatings from fouling by seashells and algae. : Rubber based compounds are known to contain a series of tripropyl and tributyl tin derivatives, including chlorides, oxide fluorides, hydrides, and salts, as well as crosslinkers. It is also known that T1 -quinonioxime and lead dioxide are used to crosslink the copolymer of isobutylene and isoprene. However, coatings of low molecular weight rubber compounds that remain liquid at ambient temperature and contain known organotin compounds are of poor quality, since they interfere with the rubber crosslinking process, which is a film-forming composition for coatings. The aim of the invention is ynynucfuie coating quality. This is achieved by the fact that the composition contains 1g of k) as an organotin compound; neither the substances of the general formula K, SnX gia R are apyclic with Cj — C or phenol} X - phenoca radical, which can be soda | , reap substituents in the form of halogen atoms or aryl hydrocarbon radicals,; with the following ratio of components, weight. h .: Rubber1OO and -Hinondioxim1-1O Lead dioxide2-5O Tin compound Solenoid compound Liquid rubber is a product of joint (limonization of isobutylene with small amounts of isoprene, has an average mol. | weight of about 32OOO and contains on average about 7 double H3X bonds between two carbon atoms on a single molecule. Fragile rubbers have a significant advantage compared to their solid homologues, which have a higher molar ratio of 1) (n.) and rubbers are easily incorporated into the LH formation of coatings characterized by} yusitelyyu small ъ Bone hard coatings, such as acidic or spraying, are usually used in the form of a LIST that is firmly glued to the surface to be protected, for example, to the underwater part of the corona shell or to a pile of aristeni. large surges of irregular surface configuration 51 are difficult. Derivatives treprosch1 olo-va effectively kill and / or repel rakigiks and other opraimsMbij resulting in fouling of underwater surfaces and do not have a negative effect on kataliznrovannoe otverzhde1she Sidky rubbers are inherent / someone other three organic tin compound m, especially bis- (tra organo tin) oxides. Coating formulations; they are solidified, t, e. the formation of the cross-linked molecular structure to obtain solid products at ambient temperature para-quinone-dioxkus (catalyst), which is used in accounting for lead dioxide (oxidant In connection with the fact that liquid rubber cures from the very beginning in the presence of a catalyst with an oxidizing agent, it is desirable to add an oxidizing agent directly before applying the composition to form a coating.It is convenient to introduce lead oxide into the paste, which also contains fatty acid, for example, eirir; new acid, phthalate and ester play the role of a plasticizer. Tin-org-animatic compound

BIS MSD

MSW 2,4, lorpheoxide MSW pentahdorfoxide

MSW o-phenylphenoxide

MSW (4 metshgio) -phenoxide

MSW dimethyldithiocarbomate MSW dimer1ggotmadad1 azole

1T) About meth. Polymercaptoti: adiazole

1 :: IS-Т 1О-ОКСИД

1H Leita Chlorfeguxy

TIIO o-phenylphenoxide

ripijNteicUTHe: 1) MSW -tri- 2) ™ tr1 -n-about p-l-oBo orBep.nvaeHdH, moat, swamp; do not contain (he tin 1,: oeduments, the concentration of the coagulative n oxide / pin 1 is determined by the desired rate of depletion.; In addition to the liquid rubber, the compounds in the form of three organo-o / yva, catalyst and oxidant, coating formulas 1tk:; may contain and other composite components which apply for coating or modifying one or several properties of the target product. Organic solvents, naphtha, dyes and pigments are used as part of the oi components chosen oi. containing 360 parts by weight of liquid isobuty of unisoprene copolymer (M butyl SO4, manufactured by a foreign company .Enjay Chemicdf Company, USA) .480b8c, part of xylene, 2.4 weight, part of para-quinone dioxy-ma and 3 weight , including standard ycKOf1tep otgzerzhdeniya, representing a mixture of N, N-dimethylformamide with glacial acetic acid in a ratio of 1: 1 by weight, added: a) 3.3 weight. including paste containing 3.25 weight. including lead dioxide, 0.33 weight, including stearic acid and 2.92 weight. d. dib utilftalata and b) weight. h. of a liquid organic compound. The resulting compositions are thoroughly mixed for several minutes and then applied as a film coating onto glass HHcie plates. The coated plates are left to stand at about 16-2 ° C at an ambient temperature. The films are then examined to determine the degree of cure. The results of the study are listed below. Degree of cure

Example 2; Comparison of ef (|) of eects; ti bis-TBS-oxide and MSW-2,4,6 trichloro4 | e nata in curable liquid rubber-based formulations.

K 9O weight. including a mixture of BOO g xipole solution containing 6O Bes.% of the product of the joint polymerization of butylene with isolene, described in Example 1, is added: 1O weight, including bis- (tri-butyl-tin) oxide or tri-n-butyl -Tin-2,4,6-trichlorophenate. A third formulation was prepared without any tin compound. Each of the formulations was applied to the steel plates with the aid of a kit; TI. After 24 hours of exposure to air at ambient temperature, recipes that do not contain tin and trichlorophenate compounds appear to be cured in appearance, the coatings are dry and show only a slight stickiness on the skin. The recipe containing bis- (tri-n-butyltin) oxide has a much greater stickiness compared with the other two samples, and a film of brown liquid is on the surface of the layer of the skin. This indicates sweating of at least part of the compound; tin from the surface layer of liquid rubber. Example 3. Production and evaluation of coatings containing liquid rubbers and soy; dinens of tri-organo-hulls and preventing: the formation of algae and shells; supply: new part of the ship, G Get the recipe by combining and thoroughly mixing the following parts: a) 100 weight. h. 60 weight,% jHoro solution of a liquid copolymer of isobutylene with isoprene in xylene; b) 4O weight. xylene x; -6) 4 wt. including a pair of quinodioxime. 9O weight, including the mixture obtained is mixed with a) 1O weight. including carbon black; b) 7 weight, h paste containing 3.25 weight. lead dioxide; 0.33 weight. including stearic acid and 2.92 weight, including budibutyl phthalate and) Yu weight. including 3-n-butyl-pentachlor / phenate.

Claims (1)

The pivot neocena1vAK1T by ei-o is capable of accepting ai / TBpaiJiaTbо6 Astana looking at water; 1ros: d and the shells through the coatings / hooks of the coatings (each coating thickness of 5.1-6.4.1 o cm) on both ocHOBHbie panel surfaces 115x4O cm (inches) on glass-reinforced polyester resin, which is pre-treated with a stream of sand to obtain a rough surface. Q; Cured coating panels immerse water. The panels protect against a complete plant by the fact that above the surface of the water: only 1/3 of the panel always protrudes. K (End of five-month period. The most affected surface of the panel showed the presence of only 7 shells, the Panel, covered with the same} 5th composition, not containing tin-organic compound, | overgrown with 79 shells after month aging and more than 1OO shells after Three-month exposure, Formula of the Invention The composition for coatings containing a liquid rubber copolymer of isobutylene and ioprene, n-quininedioxime, lead dioxide and an organic compound, which in order to improve the quality of the coating, it contains e is an organotin compound of the general formula l, StiX where R is alkyl with C — C or phenyl; is a phenoxy radical which may contain substituents in the form of halogen atoms or aryl hydrocarbon radicals, in the following ratio of components, parts by weight : Kauchuk1OO p-Hinondioxim1-10 Lead dioxide2-5O Organotin 5-5O.