Abstract: An organopolysiloxane composition that can be crosslinked by addition, comprisinga) a branched organopolysiloxane having unsaturated hydrocarbon groups, and triorganosiloxy end unitswherein at least 90% of the organo groups are methyl groups,the number average molecular weight of which is on average from 9,000 to 60,000,wherein the ratio of the number of diorganosiloxy units (D-units) to the number of branch points is on average between 15 and 40, andwherein at least one triorganosiloxy unit (M-unit) and at maximum half of all the M-units are free of unsaturated radicals, the remaining M-units each have only one unsaturated radical and the content of unsaturated radicals is from 0.

Abstract: Disclosed are electroviscous liquid essentially containingA) A linear and/or branched, eventually functionalized, polyether or the monomers thereof, the conversion product of such polyether resp. such monomer with mono- or oligo functional compounds and eventually additional additives, andB) a dispersing agent, andC) a non-aqueous dispersion-medium.In an embodiment a cavity contains the electroviscous liquid and has parts movable with relation to each other and electrode means for generating an electrical field within the cavitywherein applying the electrical field increases the viscosity of the liquid.

Abstract: A photographic recording material which contains a support and thereupon at least one light-sensitive silver halide emulsion layer together with a protective layer containing gelatine over the light-sensitive layer and optionally a layer on the reverse side containing gelatine, and the protective layer containing gelatine and/or the reverse side layer containing gelatine contains a silicone oil of the formula I ##STR1## in which R.sub.1 means hydroxy, alkoxy, cycloalkoxy, aryloxy,R.sub.2 means a residue of the formula ##STR2## or R.sub.1 R.sub.3, R.sub.4 means alkyl, aryl, cycloalkyl,R.sub.5, R.sub.

Abstract: Refrigerating oils useful in refrigerating devices to produce temperatures lower than -86.degree. C. and as low as -130.degree. C. and free from salts, alcohols, halogenated hydrocarbons and halocarbons and having a viscosity below 10 mm.sup.2 /s at -40.degree. C., consisting essentially of mixtures of at least two members selected from the group consisting of hexamethyl disiloxane, octamethyl trisiloxane, linear decamethyl tetrasiloxane, octamethyl cyclotetrasiloxane and decamethyl cyclopentasiloxane.

Abstract: Low temperature lubricating oils are fluorosiloxane compounds of the formulaT.sub.a M.sub.b D.sup.F.sub.c D.sub.dwhereinT represents phenyl trisiloxy groups or mixed phenyl trisiloxy-and alkyl trisiloxy groups;M represents trialkyl monosiloxy groups triphenyl monosiloxy groups or tri-alkyl/phenol-monosiloxy groups;D represents dialkyl disiloxy groups, diphenyl disiloxy groups, or phenyl-alkyl disiloxy groups and;D.sup.F represents disiloxy groups with a methyl or phenyl substituent and a fluorinated substituent of the formula C.sub.n F.sub.2n+1 --CH.sub.2 --CH.sub.2 --;a is a number from 0 to 5;b is a number from 3 to 7;c is a number from 3 to 7;d is a number from 30 to 70; andn is a number from 1 to 12.

Abstract: A coating composition for coating thin-layer substrates, containing a Si-bonded organopolysiloxane (A) containing unsaturated hydrocarbon radicals and having a viscosity of 50 to -10.sup.7 MpA.s, an organopolysiloxane (B) containing at least three hydrogen-silicon atoms, a noble metal catalyst (C) and an additive (D) which retards the addition reaction at room temperature, wherein polymer (A) contains a number of trifunctional and/or tetrafunctional branch points T.sub.n, and/or Q.sub.n' and a number of Si atoms X.sub.m containing unsaturated hydrocarbon radicals, in whichn is 0 to 10 andn' is 0 to 10 andthe sum of N+n' is 1 to 10, andwherein ##EQU1## the terminal groups of polymer (A) formed by triorganosiloxy units containing at least one unsaturated hydrocarbon radical.

Abstract: A skin care or skin-protecting composition comprising a highly viscous polydimethylsiloxane which optionally contains OH, vinyl, phenyl or alkyl groups with 2 to 6 C atoms in the terminal and/or middle positions, the polydimethylsiloxane having a viscosity of 10.sup.6 to 5.times.10.sup.7 mPa.s, and a highly volatile, linear or cyclic siloxane.

Abstract: Fluorosiloxane lubricant comprising compounds corresponding to the formulaT.sub.a M.sub.b D.sup.F.sub.c D.sub.dwhereinT denotes alkyltrisiloxy having 1 to 12 alkyl carbon atoms,M denotes trialkylmonosiloxy having 1 to 12 carbon atoms in each alkyl,D denotes dialkylsiloxy having 1 to 12 carbon atoms in each alkyl,D.sup.F denotes a substituted alkyldisiloxy having 1 to 12 carbon atoms in the alkyl and substituted by a fluorinated moiety of the formula C.sub.n F.sub.2n+1 --CH.sub.2 --CH.sub.2,whereinn is a number from 2 to 10,a is a number from 1 to 5,b is a number from 3 to 7,c is a number from 3 to 7, andd is a number from 30 to 70.

Abstract: A water-repellent plaster molding is produced by forming a foam of water, surfactant and polyalkyl-hydrogen-siloxane adding this foam to a paste of plaster powder in water, and letting the mixture set.

Abstract: A release agent for a polyurethane molding composition by weight comprising about 90 to 97 parts of an organic solvent and about 10 to 3 parts of a TiO group-containing polysiloxane.

Abstract: An aqueous alkylhydridopolysiloxane emulsion is stabilized against loss of hydrogen by addition thereto of about 0.1 to 5% by weight of an emulsifier containing perfluoroalkyl groups. The emulsion may further contain a fluoroalkyl-substituted siloxane of the formula ##STR1## wherein R each independently is alkyl with 1 to 6 carbon atoms or phenyl,R.sub.F is fluoroalkyl with 4-12 carbon atoms,a is about 5 to 70, andb is about 5 to 70.Advantageously the emulsifier is a member selected from the group consisting of a perfluoroalkyl ether of the formulaC.sub.x F.sub.2x+1 SO.sub.2 N (CH.sub.3) CO--(OCH.sub.2 --CH.sub.2).sub.n --(OCH CH.sub.3 CH.sub.2).sub.m --OC.sub.4 H.sub.9,whereinX=about 6-12,n=2-about 40 andm=2-about 40,and a perfluorinated alkane sulphonic acid salt of the formulaC.sub.x F.sub.2x+1 SO.sub.3 N(C.sub.n H.sub.2n+1).sub.4whereinx=6-12 andn=1-3.