| Patent Number |
Title Of Patent |
Date Issued |
| 5057549 |
Alkenyloxy-functional organosilicon compounds, their preparation and use |
October 15, 1991 |
| Novel, alkenyloxy-functional organosilicon compounds are described which contain at least one Si-bonded Y radical per molecule having the formulain which A represents --O--, --S-- or ##STR1## R.sup.2 represents a linear or branched alkylene radical having from 1 to 7 carbon atom(s) p |
| 5057151 |
Process for preparing hydrophobic particulate solids containing Si-OH groups and a process for u |
October 15, 1991 |
| The invention relates to a process for rendering particulate solids containing Si-OH groups hydrophobic which comprises reacting a water repellent containing an organo-silicon compound with particulate solids containing Si-OH groups with simultaneous mechanical loading of the reactio |
| 5049636 |
Organosols of organopolysiloxanes and a process for preparing the same |
September 17, 1991 |
| Organosols of organopolysiloxanes are prepared by adding water-soluble organic solvents or mixtures thereof or water-soluble mixtures of water-soluble and water-insoluble organic solvents to aqueous, colloidal suspensions of organopolysiloxanes obtained by adding at least one alkoxys |
| 5047492 |
Organooligosilsesquioxanes |
September 10, 1991 |
| The invention relates to compounds of the formulain whichz is 6, 8 or 10;R represents the same or different radicals of the formulas with the proviso that up to z-1 of the radicals can also be radicals of the formula --O--SiR'.sub.3, in which X represents a monovalent radical or one half of |
| 5045231 |
Aqueous dispersions of organopolysiloxanes |
September 3, 1991 |
| Aqueous dispersions of organopolysiloxanes containing the following components:(A) Organopolysiloxane having groups which can undergo condensation;(B) condensation catalyst;(C) organopolysiloxane resin; and(D) diorganosilanolate and/or condensation products thereof formed by splitting off wa |
| 5041594 |
Process for preparing organo(poly)siloxanes having Si-linked, conjugated dienyl groups |
August 20, 1991 |
| Organo(poly)siloxanes having Si-linked, conjugated dienyl groups are prepared by adding a secondary or tertiary acetylenic alcohol (1) to an organo(poly)siloxane (2) having at least one Si-linked hydrogen atom in the presence of a catalyst (3) which promotes the addition of Si-linked |
| 5039724 |
Process for preparing aqueous emulsions of high-molecular-weight organopolysiloxanes |
August 13, 1991 |
| A process for preparing aqueous emulsions from high-molecular-weight organopolysiloxanes which are solid at room temperature, in the absence of organic solvents, which comprises dissolving the high-molecular-weight organopolysiloxane which is solid at room temperature in a low-molecu |
| 5023295 |
Compositions suitable for coating the surface of electrical high-voltage insulators |
June 11, 1991 |
| Compositions for coating the surface of electrical high-voltage insulators, which are stable on storage in the absence of water and can be crosslinked to form elastomers at room temperature when exposed to water comprising(I) a diorganopolysiloxane having terminal groups capable of condensat |
| 5015700 |
Anhydride-functional organo/(poly)siloxanes, a process for preparing the same and uses thereof |
May 14, 1991 |
| Anhydride-functional organo(poly)siloxanes having average units of the general formula ##EQU1## in which the R(s) are the same or different and represent a monovalent hydrocarbon radical or a monovalent halogenated hydrocarbon radical having from 1 to 18 carbon atom(s) per radica |
| 5015605 |
Process for preparing highly porous glass-ceramic molded parts |
May 14, 1991 |
| The invention relates to a process for preparing highly porous glass-ceramic molded parts having carbon atoms linked to silicon atoms, which comprises reacting a molded part, containing an organopolysiloxane which is solid at room temperature, and consists of units of the formula ##S |
| 5011962 |
Process for preparing organosiloxanes |
April 30, 1991 |
| Organosiloxanes (1) of the general formulain which R is the same or different and represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 18 carbon atom(s) per radical or a substituted monovalent hydrocarbon radical having from 1 to 18 carbon atom(s) per radical, |
| 5009934 |
Process for preparing poly-(imidesiloxanes) |
April 23, 1991 |
| A process for preparing poly-(imidesiloxanes) which comprises reacting an N,N'-dialkenyldiimide with an organosilicon compound containing two Si-bonded hydrogen atoms in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond. |
| 5008392 |
Process for the preparation of pyridine-2,3-dicarboxylic acid esters |
April 16, 1991 |
| The invention relates to a process for the preparation of pyridine-2,3-dicarboxylic acid esters using novel maleic acid esters as starting materials. In the process, in a first process step, 2,3-dihalomaleic acid esters are reacted with ammonia, or ammonium salts, with the exclusion |
| 5008317 |
Compositions which can be crosslinked to form flame retardant and/or tracking resistant and arc |
April 16, 1991 |
| Compositions which can be crosslinked to form flame retardant and/or tracking resistant and arc resistant organopolysiloxane elastomers which comprises adding to a cross-linkable organopolysiloxane an additive which is obtained by mixing(A) 60 to 80 percent by weight of diorganopolysilox |
| 5008229 |
Compositions containing phosphonitrile chlorides |
April 16, 1991 |
| The present invention relates to compositions containing phosphonitrile chlorides and/or compositions thereof containing reaction products which accelerate the condensation and/or equilibration of organo(poly)siloxanes, halogen-free organic solvents and solubilizers and the use of such |
| 5006372 |
Adhesive organopolysiloxane composition which can be cured to form an elastomer |
April 9, 1991 |
| Organopolysiloxane compositions which can be cured to form elastomers and contain:(a) An organopolysiloxane containing Si-bonded vinyl groups;(b) an organopolysiloxane containing Si-bonded hydrogen;(c) a platinum catalyst which promotes the addition of Si-bonded hydrogen to vinyl groups;(d) |
| 5004560 |
Basic polypyrrylenemethines and salts thereof, and a process for their preparation |
April 2, 1991 |
| Basic polypyrrylenemethines, and salts thereof, having conjugated double bonds and constructed from optionally substituted five-membered heterocyclic rings containing nitrogen, as the only hetero atom in the ring are disclosed, with the five-membered rings, in each case, being bonded |
| 5003015 |
Process for the polymerization of polar compounds |
March 26, 1991 |
| The invention relates to an improved process for the polymerization of polar compounds which have a C.dbd.C double bond in the .alpha.-position to a carbonyl, nitrile, sulfone, phosphone or nitro group, such as, for example, acrylic acid derivatives, .alpha.-nitroolefins, vinyl sulfone |
| 4997870 |
Process for the preparation of polyvinyl alcohols which are soluble in cold water and have been |
March 5, 1991 |
| A process is provided for the preparation of polyvinyl alcohols absorbed onto pigments. In the process 10% to 30% strength by weight of aqueous solutions of partially hydrolyzed polyvinyl alcohols or fully or partially hydrolyzed vinyl alcohol copolymers, which are soluble in cold water, |
| 4986975 |
Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane |
January 22, 1991 |
| The invention is a multi-stage process for purifying hydrogen chloride containing acetylene and ethylene, from pyrolysis of 1,2-dichloroethane to provide highly pure hydrogen chloride for use in the preparation of silicon compounds. In the first stage, unsaturated by-products are chl |
| 4975510 |
Process for preparing diorganopolysiloxanes having terminal triorganosiloxy units |
December 4, 1990 |
| A process for preparing diorganopolysiloxanes containing terminal triorganosiloxy groups which comprises reacting in a 1st step, a cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolyzate with from 0.05 to 3 percent by weight of triorganochlorosilane, based on the weight |
| 4972029 |
Process for preparing thermally stable crosslinked epoxy resins |
November 20, 1990 |
| Thermally stable, crosslinked epoxy resins are obtained by crosslinking an epoxy resin with a silicon compound containing a basic nitrogen which is bonded to silicon via carbon and to which at least 1 hydrogen atom is bonded directly to the nitrogen atom, and thereafter conditioning the |
| 4968760 |
Paintable organopolysiloxane compositions which crosslink at room temperature to form elastomers |
November 6, 1990 |
| Organopolysiloxane compositions which crosslink at room temperature to form paintable elastomers containing (3) an organopolysiloxane having SiC-bonded radicals with a basic nitrogen and/or (4) a branched organopolysiloxane. |
| 4952658 |
Process for preparing organopolysilanes |
August 28, 1990 |
| The invention relates to a process for preparing organopolysilanes which comprises reacting an organosilicon compound containing Si-Si bonds and containing at least one radical of the formulawhere R.sup.2 represents hydrogen or an alkyl radical, with boric acid. |
| 4948907 |
Process for preparing low-molecular-weight organo(poly)siloxanes |
August 14, 1990 |
| Linear low-molecular-weight organo(poly)siloxanes which are monofunctional or difunctional and in which, if difunctional, the two functionalities are present in siloxane units which are chemically different from each other are prepared by reacting an octaorganocyclotetrasiloxane with lit |
| 4944989 |
Compositions which crosslink in the presence of moisture at room temperature to form elastomers |
July 31, 1990 |
| Compositions which can be stored in the absence of moisture, but crosslink in the presence of moisture at room temperature to form elastomers comprising a diorganopolysiloxane having terminal condensable groups, a silicon compound having at least three hydrolyzable groups bonded directly |
| 4942211 |
Organopolysiloxane compositions which can be crosslinked to form elastomers with the elimination |
July 17, 1990 |
| The invention relates to organopolysiloxane compositions which can be crosslinked to form elastomers with the elimination of alcohols and are stabilized by salts of the second main group or sub-group with branched-chain carboxylic acids having from 5 to 15 carbon atoms. |
| 4935484 |
Silicone resin powder and a process for preparing the same |
June 19, 1990 |
| Silicone resin powders are obtained by spray drying aqueous colloidal suspensions of organopolysiloxanes which are prepared by adding an alkoxysilane and/or a partial hydrolysate thereof and, if appropriate, mixed with an organo(poly)siloxane which is free of alkoxy groups and contai |
| 4935483 |
Heat-vulcanizable organopolysiloxane compositions |
June 19, 1990 |
| The invention relates to heat-vulcanizable compositions containing an organopolysiloxane and from 0.01 to 10 parts by weight of an organo(poly)silane per 100 parts by weight of organopolysiloxane. |
| 4935220 |
Process for purifying crude gaseous hydrogen chloride |
June 19, 1990 |
| The invention relates to a process for purifyng crude gaseous hydrogen chloride originating from plants producing silane or siloxane and containing as impurities silanes which contain chlorine and/or organic radicals, water, alkanols, hydrocarbons, chlorinated hydrocarbons, organic a |
| 4933012 |
Aqueous coating for copy paper, and a process for the production thereof |
June 12, 1990 |
| Aqueous coating of copy paper based on a porous inorganic matrix, an elastifying organic polymer and the color paste included in the pores. The inorganic matrix comprises a Zr.sup.4+ polycondensate or Zr/Al mixed oxide gel, which is preferably elastified by addition of alkali-soluble |
| 4929647 |
Compositions which can be crosslinked by radiation to form elastomers |
May 29, 1990 |
| Compositions which can be crosslinked by radiation to form elastomers comprising (a) an organopolysiloxane containing triorganosiloxane units of the formulain which R is selected from monovalent hydrocarbon radicals and halogenated monovalent hydrocarbon radicals, R.sup.1 is selected fro |
| 4919843 |
Antifoam compositions |
April 24, 1990 |
| The invention relates to antifoam compositions containing an essentially linear organopolysiloxane, a silicone resin containing essentially triorganosiloxy and SiO.sub.4/2 units, and a filler. |
| 4918131 |
Aqueous silicone dispersions |
April 17, 1990 |
| The aqueous silicone dispersions of the present invention contain (a) polydiorganosiloxanes having terminal hydroxyl groups, (b) an (organo)metallic compound, and (c) a high-molecular weight, toluene-insoluble silicone resin having a mean particle size of at least 200 nm. |
| 4904719 |
Noncorrosive, aqueous organopolysiloxane emulsions |
February 27, 1990 |
| The invention relates to noncorrosive, aqueous emulsions containing an organopolysiloxane and an emulsifier selected from a compound of the general formula ##STR1## a compound of the formula ##STR2## or mixtures thereof in which R is an aliphatic, saturated or unsaturated |
| 4904414 |
Electrically conductive adhesive for a broad range of temperatures |
February 27, 1990 |
| An electrically conductive adhesive having elasticity over a wide temperature range of approximately -60.degree. C. to about 180.degree. C. for securing sensitive electronic components to a foundation is provided. |
| 4902813 |
Process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups |
February 20, 1990 |
| A process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups which comprises reacting an organosilicon compound selected from a cyclic diorganopolysiloxane, a diorganodichlorosilane hydrolysis product and mixtures thereof with from 0.1 to 3 percent by weigh |
| 4902570 |
Process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-f |
February 20, 1990 |
| The invention relates to a process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a charge controlling substance for positive chargeable toners, in which the highly dispersed metal oxides are reacted with an org |
| 4888405 |
Preparation and processing of mixtures containers organocyclosiloxanes |
December 19, 1989 |
| The invention relates to a process for treating organocyclosiloxane-containing mixtures with condensation catalysts. The resultant mixtures can be reacted with silanes or siloxanes to form organopolysiloxanes containing functional groups. |
| 4879142 |
Process for preparing a silicon carbide protective coating |
November 7, 1989 |
| A process for preparing a protective coating which comprises applying a copolymer obtained by reacting at least one disilane of the formulain which R represents the same or different alkyl, alkenyl or aryl radicals and R.sup.1 represents the same or different alkyl radicals, which may op |
| 4874662 |
Process for impregnating organic fibers |
October 17, 1989 |
| The invention is a process wherein organic fibers are impregnated with organopolysiloxane (1) containing, in addition to diorganosiloxane units in which the two SiC-bonded organic radicals are monovalent hydrocarbon radicals, at least two monovalent SiC-bonded radicals containing basic |
| 4874638 |
Process for improving the adhesion of polymeric substances |
October 17, 1989 |
| A process for improving the adhesion of polymeric substances containing organic groups or composed of such groups to the surfaces of alkaline earth metal carbonates, which comprises applying an organic aprotic solvent solution containing at least one organosilicon compound having flu |
| 4873297 |
Process for reducing the halogen content of halogen-containing polycarbosilanes and polysilanes |
October 10, 1989 |
| The invention relates to a process for reducing the halogen content of polysilanes and/or polycarbosilanes having halogen bonded directly to silicon atoms in which the halogen-containing polysilanes and/or polycarbosilanes are contacted with compounds of the general formula ##STR1## |
| 4871781 |
Polydiorganosiloxanes which can be cured to form elastomeric foams |
October 3, 1989 |
| The invention relates to compositions comprising (A) polydiorganosiloxanes containing vinyl groups, (B) polyorganohydrogensiloxanes, (C) platinum catalysts, and (D) a saturated polyhydric alcohol having at least two hydroxyl groups per molecule, which can be cured at temperatures of from |
| 4870200 |
Process for preparing disproportionation products of dichloromethylsilane in the presence of a c |
September 26, 1989 |
| The present invention provides a process for preparing disproportionation products of dichloromethylsilane in the presence of a catalyst, which comprises contacting dichloromethylsilane with a catalyst consisting of a carrier which is insoluble in the reaction medium and having NR.sub.3 |
| 4863666 |
Process for preparing moldings or coatings |
September 5, 1989 |
| A process for preparing moldings or coatings by compression molding, transfer molding or injection molding from materials which contain free-radical generators and an organopolysiloxane which can be crosslinked to form organopolysiloxane elastomers, in which the free-radical generato |
| 4862827 |
Apparatus for coating semiconductor components on a dielectric film |
September 5, 1989 |
| Apparatus for applying a coating to semiconductor chips mounted within apertures in a dielectric film. The film containing the semiconductor chips and input-output connectors is fed from a reel past an applicator for applying the coating on one side of the chips. After passing through a |
| 4861807 |
Radiation-crosslinkable compositions |
August 29, 1989 |
| Compositions which may be crosslinked to form adhesive-repellent coatings having increased separation values, comprising organopolysiloxanes in which at least 95 mol percent of the siloxane units have the formulawhere R is a monovalent hydrocarbon radical or a halogenated monovalent hydr |
| 4857608 |
Process for preparing weather-resistant coatings |
August 15, 1989 |
| Substrates which are exposed to weathering are coated with paints containing an epoxy resin and a silicon compound containing basic nitrogen which is bonded to the silicon via a carbon and which has at least one hydrogen atom bonded directly to the nitrogen atom. |
| 4857582 |
Process for preparing colloidal suspensions of organopolysiloxanes |
August 15, 1989 |
| Colloidal suspensions of organopolysiloxanes are prepared by mixing an organosilicon compound selected from the group consisting of mixtures of alkoxysilanes and/or partial hydrolysates thereof and an organo(poly)siloxane which is optionally free of alkoxy groups and contains a maxim |
