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5120610 |
Polymers having phthalocyanine units and their use as optically transparent films
Novel polymers contain phthalocyanine ring systems bonded via axial bonds to a central metal atom in the polymer chain and consist of repeating units of the general formula (I) ##STR1## In the...
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5112512 |
Solid polymer electrolyte of an organopolysiloxane crosslinked with polyalkylene oxide
An ionically conductive material comprises crosslinked copolymer prepared by the reaction of (A) organopolysiloxane and polyoxyalkylene copolymer, which has at least 2 silicon-bonded hydrogen atoms...
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5098978 |
Liquid-crystalline polymers containing chromophoric side groups
The invention relates to cholesteric organic polymers which contain, in the side groups, both mesogens, at least some of which are optically active, and chromophoric groups.
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5096991 |
Organopolysiloxane polymers and method for making
An organopolysiloxane homopolymer or copolymer comprising recurring units of the general formula: ##STR1## wherein R 1 and R 2 are independently selected from monovalent hydrocarbon groups, Q is...
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5093452 |
Silicone phosphate amines
The present invention relates to a series of novel silicone phosphate organic amine salts. These compounds have one or more pendant phosphate group in the free acid form which is neutralized by a...
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5091440 |
Acrylate- or methacrylate-functional organopolysiloxanes
Radiation polymerizable acrylate- or methacrylate-functional organo-polysiloxanes having the structural formula ##STR1## wherein R is a radical selected from the group consisting of monovalent...
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5089581 |
Novel polydiorganosiloxylated thiuram disulfides and radical polymerization of vinyl monomers therewith
Novel polydiorganosiloxane substituted thiuram disulfides have the formula: ##STR1## and are useful for the radical polymerization of vinyl monomers to produce...
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5087685 |
Process for preparing polycarbosilanes and new polycarbosilanes
A process for preparing polycarbosilanes by co-condensation of dihalosilanes R 1 R 2 SiX 2 and saturated dihalohydrocarbons Y-A-Y in the presence of an alkali metal, wherein the groups R 1 , R 2...
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5086148 |
Polyether-impression material and method for its preparation and use
A polyether-impression material comprising components (a) a polyether, which has at least two optionally substituted vinyl- and/or allyl-end groups, (b) an SiH component, (c) a platinum...
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5086150 |
Process for the production of PUH elastomer threads and films resistant to light and exhaust gases and elastomer threads having the required composition
This invention relates to a process for the production of light resistant and exhaust gas resistant PUH elastomer threads and films based on segmented polyurethane ureas which are based on...
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5086141 |
Polysiloxane crosslinked styrene/butadiene copolymers
A crosslinked polysiloxane styrene/butadiene copolymer represented by the formula of FIG. 1 wherein m is a number of from about 2 to about 10; n is a number of from about 10 to about 1,000; k, l,...
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5086146 |
Methylalkoxy-methylalkyl cyclosiloxane copolymer
A methylalkoxy-methylalkyl cyclosiloxane copolymer having the formula (OSiROR) d (OSiRR') e where R is an alkyl radical having one to three carbon atoms; R' is the alkyl radical (CH 2 ) c R; c...
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5085938 |
Chemically treated fibers and method of preparing and method of using to reinforce polymers
Chemically treated fibers have an aqueous chemical treating composition and are useful for reinforcing thermoplastic polymers most notably polyacetals and polyphenylenesulfide. The aqueous chemical...
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5079312 |
Process for preparing polysiloxane-containing resin
The invention provides a process for preparing a polysiloxane-containing resin which comprises copolymerizing a polysiloxane-type macromonomer with a vinyl monomer, characterized in that the...
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5079300 |
Method of curing organpolysiloxane compositions and compositions and articles therefrom
The present invention provides curable gel compositions and also cured gel compositions which possess unexpectedly superior combinations of physical properties and aging resistance. These...
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5077134 |
Organosilicon compositions
A crosslinked organosilicon polymer or crosslinkable organosilicon prepolymer comprising alternating (a) polycyclic polyene residues and (b) polysiloxane/siloxysilane residues linked through carbon...
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5075154 |
UV-curable silphenylene-containing epoxy functional silicones
Silphenylene groups are incorporated into epoxy-functional silicones to improve the physical properties of otherwise weak and brittle UV-cured epoxy-functional silicones without adding fillers and...
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5075459 |
Treatment agent for inorganic siliconaceous filler
A treatment agent for inorganic siliconaceous fillers has as its main ingredient an organosilicon compound of general fomrula (I): ##STR1## in which X represents a functional group selected from...
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5075403 |
Amino/polyoxyalkylenated polydioganosiloxanes
Novel organofunctional polydiorganosiloxanes containing amino and polyoxyalkylene groups, well adapted as surfactants, dispersants or additives to textile rinsing softening compositions, or to...
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5070170 |
Wettable, rigid gas permeable, substantially non-swellable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units, and use thereof
Contact lenses which are optically clear, wettable, of high oxygen permeability and substantially non-swellable in the aqueous ocular envionment of use, of a block copolymer containing polysiloxane...
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5070169 |
Wettable, flexible, oxygen permeable contact lens containing block copolymer polysiloxane-polyoxyalkylene backbone units and use thereof
Contact lenses which are optically clear, wettable, flexible, and of high oxygen permeability in the aqueous ocular environment of use, of a block copolymer containing polysiloxane and...
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5068304 |
Moisture-curable resin composition
A moisture-curable resin composition containing a hydrolyzable silyl group-containing polyether compound as a curable component, said polyether compound comprising polyoxyalkylene chains derived...
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5068303 |
Organosilicon materials
A crosslinkable organosilicon prepolymer and a crosslinked organosilicon polymer comprising alternating hydrocarbon and cyclic polysiloxane radicals, which is the hydrosilation reaction product of:...
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5057589 |
Process for the preparation of modified polysiloxanes, the polysiloxanes thus prepared, their use and the materials thus treated
A process is described for the preparation of modified polysiloxanes by reaction of polyvinylsiloxanes with compounds of the formula ##STR1## in which R is H, CH 3 or C 2 H 5 , in which at least...
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5053473 |
Method for the production of liquid-crystalline organopolysiloxanes
The present invention relates to a method for the production of liquid-crystalline organopolysiloxane which provides for the facile introduction of a mesogenic group without the use of a...
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5047492 |
Organooligosilsesquioxanes
The invention relates to compounds of the formula [RSiO 3 /2 ] z (I) in which z is 6, 8 or 10; R represents the same or different radicals of the...
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5045399 |
Organoborosilazane polymers
Preceramic polymers which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared...
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5043409 |
Release agent and process for the preparation of molded polyurethane or polyurea articles in the presence of the release agent
In a process for the preparation of molded polyurethane or polyurea articles, especially by the RIM process, internal release agents of the general formula ##STR1## are used. In this formula R 1 ...
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5041514 |
Polymeric reaction products of biphenols and organosilicon materials and method for making
Poly(silyloxytetraalkylbiphenyleneoxide)s are provided resulting from the reaction between a tetraalkylbiphenol, such as tetramethylbiphenol and an organosilicon material such as...
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5039761 |
Methacryl function dimethylpolysiloxanes and graft copolymers thereof
Novel methacryl functional dimethylpolysiloxanes are provided. Graft copolymers thereof with vinyl monomers exhibit water repellency, mold release properties, slip properties, weatherability, and...
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5039772 |
Flame retardant organopolysiloxane-polycarbonate graft copolymers
Flame retardant graft organopolysiloxane-polycarbonate copolymers are provided which can be made by effecting addition between a silicon-hydride siloxane and an aliphatically unsaturated...
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5032551 |
Silicon nitride based ceramic fibers, process of preparing same and composite material containing same
Silicon nitride based ceramic fibers containing Si, N, O and at least one metal M in amounts providing the atomic ratios N/Si of 0.3 to 3, O/Si of 0.0001 to 15 and M/Si of 0.001 to 5 and exhibiting...
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5032662 |
Method for defoaming aqueous dispersions of polymeric organic substances by addition of polyoxyalkylene-polysiloxane block copolymers
Polyoxyalkylene-polysiloxane block copolymers are disclosed which exhibit an outstanding defoaming action and have the special advantage of not causing wetting defects when dispersions defoamed...
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5025053 |
Diorganopolysiloxanes containing dibenzoylmethane functional groups
Linear and cyclic diorganopolysiloxanes containing dibenzoylmethane functional groups are well suited for the coating of optical fibers and for lubricating plastics, e.g., PVC.
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5021533 |
Crosslinkable poly(thio)ureasilazane composition containing a free radical generator
A composition that comprises a poly(thio)ureasilazane having at least one alkenyl or alkynyl group and a free radical generator can be crosslinked by an energy input provided in the form of heat,...
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5019637 |
Organopolysiloxane urea derivatives and organopolysiloxane thiourea derivatives, methods of their preparation and use
The invention is relative to optionally cross-linked organopolysiloxane urea derivatives and thiourea derivatives consisting of: ##STR1## wherein X stands for 0 or S and R 1 is a group of the...
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5015717 |
Sulfur-containing organopolysiloxane waxes and a method for preparing the same
This invention relates to sulfur containing organopolysiloxane waxes containing (1) at least three mole percent of siloxane units of the formula ##STR1## (2) at least one mole percent of...
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5006573 |
Silane coupling agents
A novel organosilane coupling agent is disclosed and its use as an adhesion promoter in mineral-filled unsaturated polymer systems is described. Additionally, use of the organosilane as a primer...
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4997591 |
Chiral smetic liquid crystals and glassy materials containing the same for displaying and storing information
The chiral smetic liquid-crystalline compounds of the general formula (I) M 1 * --B--M 2 * (I) solidify on cooling from the liquid-crystalline phase in glassy form, as a...
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4996277 |
Novel oligoethylene oxide-containing alkenes, alkoxysilanes, and polysiloxanes
Oligoethylene oxide-substituted aryl and aralkyl alkenes, oligoethylene oxide-substituted aryl and aralkyl alkoxy silanes and polysiloxane polymers containing oligoethylene oxide-substituted aryl...
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4988741 |
Controlled release compositions and use
UV curable controlled release compositions are provided. An epoxy silicone fluid and a cationically polymerizable styrene compound, such as vinyl anisole, which is substantially miscible with the...
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4981666 |
Method for the preparation of silicon carbide whiskers
In place of the conventional silicon source materials used in the prior art method for the preparation of silicon carbide whiskers, the inventive method utilizes a hydrolysis product of a...
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4981946 |
Marine paint composition comprising quinone/polyamine polymer
A marine paint composition comprising a polymer of the formula: ##STR1## wherein R is alkyl, monocyclic cycloalkyl, monocyclic heterocyclic, aromatic, siloxy, silyl and the alkyl, alkoxy, carboxyl...
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4980427 |
Toughened bismaleimide resin systems
Toughened heat-curable bismaleimide resin systems which contain alkenylphenoxy-terminated polysiloxane modifiers and compatibilizing agents. Cured resin systems exhibit increased toughness without...
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4975488 |
Curable composition at room temperature
A curable composition at room temperature comprising (A) 100 parts by weight of a hydrolyzable silyl group-containing vinyl polymer, (B) 0.1 to 100 parts by weight of a specific silane compound and...
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4973643 |
Ether amine fuctional silicone polymers
The invention discloses novel organofunctional silicone polymers which have an ether amino pendant functionality present within the polymer. Compounds of the invention by virtue of their ether...
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4970282 |
Organoborosiloxazane polymers
Preceramic polymers which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared...
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4968750 |
Block copolymers containing polysiloxane segments
Block copolymers composed of recurrent structural units belonging to the series comprising polysiloxanes and recurring structural units belonging to the series comprising homopolymers, copolymers...
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4965340 |
Copolymer from sulfur dioxide and vinyl compound
A novel copolymer useful as an active ingredient for a positive type resist material to be decomposed by electron beam or X-rays with a high sensitivity and having a superior resistance to dry...
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4965332 |
Silyl- and disilanyl-1,3-butadiyne polymers from hexachloro-1,3-butadiene
Organosilane polymers having recurring silylene-1,3-butadiyne and/or disilylene-1,3-butadiyne units are prepared in a one-pot synthesis from hexachlorobutadiene. Depending on the organic...
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