Matches 251 - 300 out of 509 < 1 2 3 4 5 6 7 8 9 10 11 >
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5077420 Organosilicon compounds and method for their preparation  
The present invention relates to novel alkylamino-substituted organosilicon compounds and a method for their preparation. The described process involves a dehydrohalogenation reaction between a...
5073619 Silicone amphoteric polymers  
The invention discloses novel organofunctional silicone polymers which have an amphoteric pendant functionality. Compounds of the invention by virtue of their amphoteric structure are good...
5068387 Production of organofunctional alkoxysilanes  
The present invention relates to a process for the production of mixtures of novel organofunctional alkoxysilanes by the reaction of mixtures of certain substituted organic halides and...
5068380 Anionic silicone surfactant and method of its manufacture  
An anionic silicone surfactant, with excellent surface tension lowering properties in aqueous and solvent systems, of the general formula ##STR1## wherein each R 1 is an unsubstituted or...
5051409 2-Aminodecalin derivatives and their use  
2-Aminodecalin derivatives of the formula I ##STR1## where R 1 , R 2 and R 3 are H or methyl, A is H, OH, O-alkylcarbonyl, O-benzoyl or O-CH 3 , R 4 is H, cyclopropyl, alkyl, alkenyl, or...
5047526 Dehydrogenative silylation process of organic compounds having active hydrogen  
A dehydrogenative silylation process of organic compounds having active hydrogen which comprises reacting an organic compound having active hydrogen with t-butyldimethylsilane in the presence of a...
5041587 Process for preparing organic silicon compound  
A process for preparing an organic silicon compound is here disclosed which comprises the step of reacting a halogenated hydrocarbon selected from the group consisting ##STR1## wherein each of X 1 ...
5041545 2-hydroxybenzophenone hydrazides and derivatives thereof  
Hydrazide functionalized 2-hydroxybenzophenone ultraviolet light and heat stabilizers and derivatives are disclosed having the general formula: ##STR1## wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 ,...
5041588 Chemically reactive fluorinated organosilicon compounds and their polymers  
Chemically reactive fluorinated organosilicon compounds as described for use as, e.g., lubricants, sealants and elastomers, are described corresponding to the formulae X 2 R 1 2 Si ...
5041590 Quaternary ammonium functional siloxane surfactants  
A compound having the formula [(R 3 SiO) 2 --SiR--(CH 2 ) a ] b N + R' 4 -b X - wherein R is an alkyl radical having one to six carbon atoms; R' is an alkyl or aryl radical having one to...
5026887 Metal-containing polymer and production process thereof  
A metal-containing polymer represented by the general formula: ##STR1## where M represents a group IV metal atom, X represents N(SiR 1 R 2 R 3 ) 2 or N(R 4 )SiR 1 R 2 R 3 , each of R 1 , R 2 ,...
5026891 Carbosilane surfactants  
Surface active silicone compounds which have an improved stability at a pH above 9 or below 4, have the general formula ##STR1## wherein each R independently represents an alkyl or aryl group, each...
5017718 Process for preparing polyfluoroalkyl-substituted compounds  
A process for preparing a perfluoroalkyl-substituted compound is disclosed. The process comprises reacting a halopolyfluoroalkane having 1 to 20 carbon atoms with a compound selected from the group...
5001246 Process for preparation of aminopropylalkoxysilane  
A process for the preparation of an aminopropylalkoxysilane, which comprises reacting a hydrosilane compound with an allylamine compound in the presence of at least one member selected from the...
4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use  
New fluorinated bisaryloxy-substituted alkenes are prepared by reaction of substituted phenols with perhaloalkenes and can be used as electrical insulating agents.
4988778 Polyamine-functional silane resin  
Disclosed herein are organosilane resins which are derived from an aminoalkoxysilane and hydroxy- and amine-functional compound; said resins are useful in curable compositions containing epoxy...
4977291 Process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring  
A process of producing a silanic or siloxanic compound containing at least one cycloalkyl ring by the hydrogenation of a corresponding compound containing at least one aromatic ring, in the...
4970313 Optically active 3-demethylmevalonic acid derivatives, and intermediates  
A process for the preparation of optically active 3-de-methylmevalonic acid derivatives, and intermediates A process for the preparation of optically active 3-de-methylmevalonic acid derivatives of...
4956484 Process for producing a silane or siloxane compound containing a cycloalkyl ring  
A process for producing a silane or siloxane compound containing at least one cycloalkyl ring by hydrogenation of a corresponding derivative containing at least one aromatic ring in the presence of...
4954599 Formed, polymeric, tertiary or secondary organosiloxane amine compounds, methods of their preparation and use  
Spherical, polymeric, tertiary or secondary organosiloxane amine compounds comprising: ##STR1## units in which R 1 and R 2 stand for a group: ##STR2## R 4 is an alkylene grouping and the oxygen...
4948907 Process for preparing low-molecular-weight organo(poly)siloxanes  
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...
4946999 Novel intermediates for synthesis of trichostatic acid or trichostatin A, and processes for preparing trichostatic acid and trichostatin A  
The present invention relates to a process for preparing trichostatic acid represented by the following formula [14] ##STR1## by oxidizing...
4943648 Initiators for group transfer polymerization  
Process for preparing a silyl ketene acetal adduct, the process comprising contacting and reacting a silyl ketene acetal and an α,β-unsaturated compound in the presence of a mercury- or Lewis...
4927949 Method of preparing an aminoalkylalkoxysilane  
An improved method of preparing an aminoalkylalkoxy silane of the formula: ##STR1## in which R 1 and R 2 independently are alkyl groups having 1-8 carbon atoms, R 3 is a hydrogen atom or an...
4927953 Process for preparing aminopropyl silanes  
A process for preparing aminopropyl silanes comprises reacting an allylamine with a hydrosilane in the presence of a ruthenium compound having at least one tertiary phosphine ligand as a catalyst....
4923950 Compositions based on derivatives of silica modified by organic groups, preparation and application thereof, particularly as cationic conductors  
Composition based on derivatives of silica modified by organic groups, characterized in that said derivatives are amorphous solids having formula (I) SiO 2 -0.5(x+y) (Z 1 x (Z 2 ) y (XA) z ,...
4918210 Zwitterionic polysiloxane compositions  
A zwitterionic composition useful as a surface active agent in aqueous solutions. Said composition represented by the general formula R'(CH 3 ) 2 Si--O[SiO(CH 3 ) 2 ] w [SiCH 3 R--O] x Si(CH...
4914220 Process for synthesis of E-2-methyl-α,β-unsaturated aldehydes  
A process is described for the synthesis of E-2-methyl-α,β-unsaturated aldehydes, which are useful as intermediates in the synthesis of the macrolide structure of the immunosuppressant FK-506....
4900705 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds  
A novel catalyst system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cupric chloride CuCl 2 with a ligand formed by reacting a carbonyl-containing...
4897501 Process for preparing aminopropyl alkoxy silanes  
In a process for preparing aminopropyl alkoxy silanes comprising reacting an allylamine with a hydro-alkoxy silane in the presence of a rhodium catalyst, the improvement which comprises use of a...
4888436 Process for preparing aminopropyl alkoxy silanes  
A process for preparing aminopropyl alkoxy silanes comprising reacting an allylamine having at least one active hydrogen atom attached to the amine nitrogen atom with a hydro-alkoxy silane having...
4879398 Process for producing 2,6-disubstituted tyrosine  
A process for making 2,6-disubstituted tyrosine by the noble metal coupling of a disubstituted aromatic halide or diazonium salt with an amino-protected 2-aminoacrylic acid to form a...
4845256 Production of silyl quaternary ammonium compounds  
The invention relates to a process for the production of silyl quaternary ammonium compounds comprising reacting a tertiary amine with a trialkoxy silane in the presence of a catalytic amount of an...
4841083 Ladder polysilanes  
There is here disclosed a ladder polysilane represented by the general formula (I): ##STR1## wherein n is a positive integer, and R is a halogen atom, a hydrogen atom, a hydroxyl group, an alkyl...
4820829 Substituted o-phthalaldehydes  
There are disclosed novel substituted o-phthalaldehydes of formula I ##STR1## wherein at least one of the substituents R 1 , R 2 , R 3 , R 4 is Q(alkyl) 3 , --CH 2 --Q(alkyl) 3 , --O--Q(alkyl) 3...
4807968 Polymer blends exhibiting nonlinear optical response  
In a preferred embodiment this invention provides novel organopolysiloxane/liquid crystalline polymer blends which exhibit nonlinear optical response. Illustrative of an invention composition is a...
4806665 Preparation of silica sol  
A method for producing a silica sol containing less than 200 ppm sodium having an average particle size of 2-110 nm, and a particle size distribution with a coefficient dispersion of 0.16-0.4. The...
4806667 Promoting production of useful livestock with silylated aminophenylethylamine derivatives  
A method for promoting production of useful livestock comprising administering to such livestock an amount effective therefor of a monosilylated aminopheylethylamine derivative of the formula...
4801659 Organopolysiloxanes exhibiting nonlinear optical response  
In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response. Illustrative of an invention organopolysiloxane is a polymer corresponding to...
4791214 Bonding agent and resin composition  
Improved bonding agent comprises a reaction product or mixture of an epoxyalkylalkoxysilane and a polyamine, and a resin composition comprising as the main ingredient conventional synthetic resin...
4789710 Process for preparation of a room-temperature curable resin  
A process for the preparation of a room-temperature curable resin comprises reacting a compound (A) containing at least two acryloyl groups and/or methacryloyl groups in a molecule, and having from...
4772409 Silicone-based working fluid for fluid coupling  
A heat-resistant and oxidation-resistant working fluid for fluid coupling is provided by the invention in which 100 parts by weight of a methyl phenyl polysiloxane containing a relatively minor...
4727168 Adhesion promotor  
The invention provides an efficient method for improving the adhesive bonding strength of various types of rubbery sealant compositions, e.g. room temperature curable silicone rubber composition,...
4701500 Metal ion binding product to inhibit bacterial growth for the immobilization and purification of biopolymers and the like  
Heavy metals can be fixed to solid carriers to which an α-amino- or an α-iminohydroxamate ligand has been covalently bound. The ligand can have the structural formula ##STR1## wherein R 1 and R...
4699988 Novel aminofunctional silicone compositions  
A composition having the general formula ##STR1## wherein each R is independently selected from hydrogen, substituted and unsubstituted organic radicals, and radicals of the formula --R 1 NR 2 ...
4698333 Use of substituted malonic acid derivatives as agents for combating pests  
Pesticidally active compounds of the formula ##STR1## in which R 1 is an organic radical, R 2 is hydrogen, trialkylsilyl, a hydrocarbon or acyl radical, and R 3 and R 4 independently are...
4697026 Acryl functional silicone compounds  
Acryl functional silicone compounds are made by reacting an amine functional silicon compound with a di- or multi-functional acryl compound by a Michael-type addition reaction. These acryl...
4694093 Polyurethane resin composition  
A polyurethane resin composition, which comprises (A) a urethane prepolymer composition containing 0.5 to 15.0% by weight of an active isocyanate group which is prepared by reacting a...
4692536 Process for the preparation of hemiaminals, and the use thereof  
The reaction of dimethylformamide, R 1 R 2 R 3 SiX and RY in the presence of zinc or the reaction of dimethylformamide, R 1 R 2 R 3 SiX and a zinc compound RZnY.yL affords hemiaminals of...
4680366 Fabric-finishing agent containing a novel organopolysiloxane  
A novel organopolysiloxane is disclosed which has a molecular structure having, in addition to conventional monovalent hydrocarbon groups bonded to the silicone atoms, aminoalkyl groups, e.g. --CH...
Matches 251 - 300 out of 509 < 1 2 3 4 5 6 7 8 9 10 11 >