Abstract: A method and composition for producing a bactericidal active monochlorotriazine dye, by reacting active dichlorotriazine dye with a bactericidal compound containing hydroxyl or amino groups. The reaction is run in an aqueous, organic, or water-organic medium at 20.degree.-40.degree. C. The monochlorotriazine dye thus formed is active and possesses bactericidal properties. On dyeing fibres, it endows them with high bactericidal properties retained after repeated wet treatments.

Abstract: The present invention relates to aryl perfluoro-alkyl ethers that are compounds of the general formula: ##STR1## where R.sub.F .dbd. CF.sub.3 or CF.sub.2 OCF.sub.3, X.dbd. Br;R.sub.f .dbd. cf.sub.2 ocf.sub.3, x .dbd. no.sub.2.and also to a method of producing them. The method according to the present invention consists in fluorinating aryl esters of perfluorocarboxylic acids of the general formula ##STR2## where R.sub.F and X are as defined above, with sulphur tetrafluoride in autoclaves at a temperature of 20.degree.-100.degree. C in hydrogen fluoride solution with the concentration of the starting esters in hydrogen fluoride being 20-50%. Aryl perfluoroalkyl ethers can be used as intermediate products for producing medicinal preparations, heat-, cold-, benzene, and oil-resistant sealing compounds, as well as compounds and polymers applied in various fields of engineering. The above-described method allows obtaining the desired products under mild conditions with a high yield (80% of theory).

Abstract: The present invention relates to fluorosiloxane rubbers of the formula: ##STR1## wherein: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7,R = ch.sub.3, c.sub.6 h.sub.5,x = 1.0 - 0.97,y = 0 - 0.03,m = 370.9 - 1,863.4,n = 0 - 44.5Having an average molecular weight within the range of from 98,000 to 410,250. The present invention also relates to a process for producing said fluorosiloxane rubbers. The process comprises polycondensation of fluorosiloxane-diols of the formula: ##STR2## wherein: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 H.sub.7,R = ch.sub.3, c.sub.6 h.sub.5,x = 1.0 - 0.97,y = 0 - 0.03,p = 2.3 - 187.2,q = 0 - 3.8Having an average molecular weight within the range of from 620 to 51,200 at a temperature of from 80.degree. to 150.degree. C in the presence of a basic catalyst or a catalyst comprising a complex salt of trifluoroacetic acid and piperidine.

Abstract: The present invention relates to fluorosiloxane diols of the formula ##STR1## where: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7,R = ch.sub.3, c.sub.6 h.sub.5,x = 1.0 - 0.97,y = 0 - 0.03,m = 2.3 - 187.2, `n = 0 - 3.8With an average molecular weight of 620 - 51,200. The invention also relates to a method of producing said compounds of the general formula (I) residing in that hydrolysis is performed on fluorosiloxanes of the general formula: ##STR2## where: R.sub.F = OCF.sub.3, OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7or of a mixture of said compounds of the general formula (II) with methyl(phenyl)vinylidichlorosilanes of the general formula: ##STR3## where: R = CH.sub.3, C.sub.6 H.sub.5with a mole ratio of the general formula (II) to those of the general formula (III) equal to 1-0.97 : 0-0.

Abstract: The invention relates to [perfluoroalkyl(alkoxy)phenyl]methyldichlorosilanes characterized by the general formula ##STR1## where: R.sub.F = OCF.sub.3 OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7 and also to a method of preparing them.The method according to the invention consists in that fluorobromo[alkyl(alkoxy)]benzenes having the general formula ##STR2## where: R.sub.F = OCF.sub.3 OC.sub.2 F.sub.5, OC.sub.2 F.sub.4 OCF.sub.3, C.sub.2 F.sub.4 OCF.sub.3, C.sub.3 F.sub.7 are treated with magnesium taken in a 5 - 20 per cent excess with respect to the stoichiometric quantity in a solution of absolute diethyl ether or absolute tetrahydrofurane at a temperature of 8.degree. - 60.degree. C.