Class / Patent application number | Description | Number of patent applications / Date published |
528032000 | Silicon reactant contains an ethylenically unsaturated group | 19 |
20090012257 | Siloxane Copolymers - A siloxane copolymer useful in personal care compositions comprises dimethylsiloxane units (A), at least one methyl (polyoxyalkylene)-alkyl siloxane unit (B), at least one lower alkyl aminoalkyl siloxane or lower alkyl amidoalkyl siloxane unit (C), and at least one methyl alkyl siloxane unit (D) in which the alkyl group is unsubstituted and has 5 to 30 carbon atoms. | 01-08-2009 |
20090043067 | PROCESS FOR PRODUCING LENS, AND LENS - A process for producing a lens is provided that includes a step of preparing a silicone resin composition that includes an organopolysiloxane containing a constituent unit represented by Formula (I), and a step of curing the silicone resin composition in a mold at a temperature of at least 220° C. There is also provided a lens produced by the production process. | 02-12-2009 |
20090171058 | Low temperature platinum-vinylpolysiloxane hydrosilylation catalyst - Hydrosilation catalysts are provided in the form of platinum-MQ siloxanes. The platinum-MQ siloxane catalyst can be made directly from platinum-complexes containing at least one ligand and the desired MQ siloxane resin. The platinum-MQ siloxane catalyst can be employed as hydrosilation catalysts to make curable organopolysiloxane compositions. | 07-02-2009 |
20090275722 | AUTOMIXABLE PUTTY IMPRESSION MATERIAL - The present invention relates to a multicomponent automixable putty impression material, its components, mixtures of the components and a method for obtaining impressions with the multicomponent automixable putty impression material. | 11-05-2009 |
20090281266 | Star silicone resins - The present invention relates to a series of crosslinked silicone polymers that by virtue of the nature of the crosslinker, have unique film forming and skin feel properties. They are made by the reaction of vinyl silicones and star silanic hydrogen compounds. | 11-12-2009 |
20100063237 | Hydrophilic Surface Modification of Polydimethylsiloxane - A method for the preparation of hydrophilic elastomers involves the synthesis of polydimethylsiloxane with tunable hydrophilic surface properties. An elastomeric monolith with desired hydrophilic properties is produced by combining a polyethylene oxide polymeric surfactant additive with a PDMS base and curing agent during polymerization. The surfactant chain segment lengths are varied to control the hydrophobic/hydrophilic balance. | 03-11-2010 |
20110105713 | ISOCYANURIC RING-CONTAINING POLYSILOXANE HAVING VINYL GROUPS AT THE TERMINALS - The purpose of the present invention is to provide an isocyanuric ring-containing organopolysiloxane which can provide a cured product which can exploit the properties of a hydrosilylation (addition reaction), and is suitable for use in an encapsulating materials for an optical semiconductor. Thus, the present invention provides an organopolysiloxane having at least one isocyanuric ring in a molecule and vinyl siloxy groups at both terminals, and represented by the following formula (1): | 05-05-2011 |
20110190467 | Biological Polysiloxanes - The present invention relates to a macromonomer having a polydimethylsiloxane backbone that has a mol % dimethyl siloxanes, b mol % siloxanes substituted with -K-RIM, c mol % siloxanes substituted with -K-RIM-Z and d mol % siloxanes substituted with -L-Z, and in which the terminal siloxane groups are tri-substituted with R, wherein RIM is a refractive index modifying group; Z is a free radically polymerisable group; K is a spacer group; L is optional and is a spacer group; each R is independently selected from an RIM, a lower alkyl group, hydrogen or Z; and a is a molar percentage of the macromonomer which is in the range of from 0 to 95 mol %; b is a molar percentage of the macromonomer which is in the range of from 5 to 99 mol %; c is a molar percentage of the macromonomer which is in the range of from 0 to 2 mol %; and d is a molar percentage of the macromonomer which is in the range of from 0 to 2 mol %; with the proviso that c and d are not both 0 mol %. | 08-04-2011 |
20110218313 | POLYMER PARTICLE AND METHOD FOR PRODUCING THE SAME - A method for producing polymer particles, including (A) polymerizing and granulating a ring-opening polymerizable monomer in a compressive fluid with a catalyst in the presence of a surfactant, or (B) polymerizing and granulating an addition polymerizable monomer in a compressive fluid in the presence of a silicone surfactant. | 09-08-2011 |
20110313123 | SILICONE RESIN LENS AND A METHOD FOR PREPARING THE SAME - The present invention provides a silicone resin lens obtained by molding and curing a silicon resin composition into a lens, wherein the lens has a refractive index at 400 nm of 1.5 or more, a ratio of a refractive index at 400 nm to a refractive index at 596 nm of 1.01 or more, an Abbe's number of 45 or more, and an absolute value of a differential of refractive indexes against temperatures, dn/dT, of 250×10 | 12-22-2011 |
20120184703 | SILICONE CONTAINING POLYMERIC MATERIALS - A polymeric material with a variable modulus of elasticity is described herein. The polymeric material described herein is useful for forming implantable medical devices (e.g. ophthalmic lenses, breast implants, and body augmentation devices). In addition, medical devices formed from the polymer material can be used to controllably release a therapeutic agent. Also, the polymeric material may be used to prepare topical compositions or other applications or devices where control of a mechanical property such as material modulus is important. | 07-19-2012 |
20130197181 | SILICONE RESIN WITH IMPROVED BARRIER PROPERTIES - The moisture and gas barrier properties of an organopolysiloxane having at least two substituents which are able to undergo crosslinking reactions per molecule shall be improved. This is achieved by providing an organopolysiloxane wherein at least 10 mol % of all substituents are represented by formula (1) | 08-01-2013 |
20130253161 | Methods Of Modifying Metal-Oxide Nanoparticles - Methods employing acidic and basic catalysts are disclosed, and generally entail hydrolysis and condensation reactions of silicon based components. The methods are useful for forming siloxane-modified metal-oxide nanoparticles, such as modified ZrO | 09-26-2013 |
20130296521 | CURABLE COMPOSITION - A curable composition and the use thereof are provided. The exemplary curable composition can show excellent processability and workability. Also, the curable composition can have a high refractive index before or after curing. The composition has low moisture permeability before or after curing and shows excellent crack resistance, thermal shock resistance, adhesive property and hardness. In addition, the composition does not cause color change such as whitening under a high-temperature or high-humidity condition, and does not exhibit stickiness on a surface thereof. The curable composition may be used as an adhesive material or as an encapsulation material for semiconductor devices such as an LED, a CCD, a photo coupler, or a photovoltaic cell. | 11-07-2013 |
20140128564 | PROCESS FOR PRODUCING HYDROLYSIS-RESISTANT SILICONE COMPOUNDS - In one aspect, the invention relates to hydrolysis-resistant silicone compounds. In particular, disclosed are sterically hindered hydrolysis-resistant silicone compounds and improved purity hydrolysis-resistant silicone compounds. Also disclosed are processes for making hydrolysis-resistant silicone compounds; the products of the disclosed processes; compositions and polymers comprising the disclosed compounds and products of the disclosed processes; and ophthalmic lenses, for example contact lenses, intraocular lenses, artificial cornea, and spectacle lenses, comprising the disclosed compositions, disclosed polymers, disclosed compounds, and products of the disclosed processes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. | 05-08-2014 |
20140323677 | THERMAL-SHOCK-RESISTANT CURED PRODUCT AND METHOD FOR PRODUCING SAME - The present invention is a method for producing a thermal-shock-resistant cured product, the method involving: a condensation step of preparing a cured-product precursor by subjecting monomers represented by general formulae (1) to (5) to copolycondensation at a specific rate in the presence of an acid catalyst; and a curing step of curing the cured-product precursor by polymerizing at least a portion of ethylenically unsaturated bonds in the cured-product precursor. Also, the present invention is a cured product prepared by said method. (In formulae (1) to (5): (X) is a siloxane bond producing group; R | 10-30-2014 |
20140371416 | ORGANOSILICON COMPOUNDS AND THEIR USE FOR PRODUCING HYDROPHILIC SURFACES - Compounds of the formula | 12-18-2014 |
20150133622 | POLYMER HAVING TERMINAL STRUCTURE INCLUDING PLURALITY OF REACTIVE SILICON GROUPS, METHOD FOR MANUFACTURING SAME, AND USE FOR SAME - A polymer (A) having, at one terminal moiety thereof, a terminal structure having two or more carbon-carbon unsaturated bonds. A reactive-silicon-group-containing polymer (B) having, at one terminal moiety thereof, a terminal structure having two or more reactive silicon groups. | 05-14-2015 |
20150141608 | CURABLE COMPOSITION - Provided are a curable composition and its use. The curable composition exhibits excellent processability and workability before curing, and excellent light extraction efficiency, hardness, thermal and shock resistance, moisture resistance, gas permeability, and adhesiveness after curing. In addition, the curable composition may provide a cured product that exhibits long-lasting durability and reliability even under harsh conditions, and does not causing whitening and surface stickiness. | 05-21-2015 |