Patent application number | Description | Published |
20120319188 | ELECTRONIC DEVICE INCLUDING A GATE ELECTRODE AND A GATE TAP AND A PROCESS OF FORMING THE SAME - An electronic device can include a gate electrode and a gate tap that makes an unlanded contact to the gate electrode. The electronic device can further include a source region and a drain region that may include a drift region. In an embodiment, the gate electrode has a height that is greater than its width. In another embodiment, the electronic device can include gate taps that spaced apart from each other, wherein at least some of the gate taps contact the gate electrode over the channel region. In a further embodiment, at a location where the gate tap contacts the gate electrode, the gate tap is wider than the gate electrode. A variety of processes can be used to form the electronic device. | 12-20-2012 |
20130320428 | ELECTRONIC DEVICE INCLUDING A GATE ELECTRODE AND A GATE TAP - An electronic device can include a gate electrode and a gate tap that makes an unlanded contact to the gate electrode. The electronic device can further include a source region and a drain region that may include a drift region. In an embodiment, the gate electrode has a height that is greater than its width. In another embodiment, the electronic device can include gate taps that spaced apart from each other, wherein at least some of the gate taps contact the gate electrode over the channel region. In a further embodiment, at a location where the gate tap contacts the gate electrode, the gate tap is wider than the gate electrode. A variety of processes can be used to form the electronic device. | 12-05-2013 |
20140264368 | Semiconductor Wafer and a Process of Forming the Same - A semiconductor wafer can include a substrate, a poly template layer, and a semiconductor layer. The substrate has a central region and an edge region, the poly template layer is disposed along a peripheral edge of the substrate, and a semiconductor layer over the central region, wherein the semiconductor layer is monocrystalline. In an embodiment, the poly template layer and the monocrystalline layer are laterally spaced apart from each other by an intermediate region. In another embodiment, the semiconductor layer can include aluminum. A process of forming the substrate can include forming a patterned poly template layer within the edge region and forming a semiconductor layer over the primary surface. Another process of forming the substrate can include forming a semiconductor layer over the primary surface and removing a portion of the semiconductor layer so that the semiconductor layer is spaced apart from an edge of the substrate. | 09-18-2014 |
Patent application number | Description | Published |
20120283346 | Modified Polyolefins - The invention provides a process for grafting silane or silicone functionality onto a polyolefin, comprising reacting the polyolefin with an unsaturated monomer (A) containing an olefinic —C═C— bond or acetylenic —C≡C— bond and a reactive functional group X in the presence of means capable of generating free radical sites in the polyolefin and with an organosilicon compound (B) having a functional group Y which is reactive with the functional group X of the unsaturated monomer (A), characterized in that the unsaturated monomer (A) contains an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic —C═C— or acetylenic —C≡C— unsaturation of the unsaturated monomer (A). | 11-08-2012 |
20120283362 | ORGANOPOLYSILOXANES CONTAINING AN UNSATURATED GROUP - The invention provides a composition comprising a polyolefin and a polyorganosiloxane in which at least 50 mole % of the siloxane units are D units as herein defined and which contains at least one unsaturated group, characterized in that the unsaturated group is group of the formula —X—CH═CH—R″ (I) or —X—C≡C—R″ (II), in which X represents a divalent organic linkage having an electron withdrawing effect with respect to the —CH═CH— or —C≡C— bond and/or containing an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic unsaturation of —X—CH═CH—R″ or with the acetylenic unsaturation of —X—C≡C—R″ and R″ represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the —CH═CH— or —C≡C— bond. | 11-08-2012 |
20120283388 | POLYOLEFINS MODIFIED BY SILICONES - The invention provides a process for grafting silicone onto a polyolefin comprising reacting the polyolefin with a silicon compound containing an unsaturated group in the presence of means capable of generating free radical sites in the polyolefin, characterized in that the silicon compound is a branched silicone resin containing at least one group of the formula —X—CH═CH—R″ (I) or —X—C≡C—R″ (II), in which X represents a divalent organic linkage having an electron withdrawing effect with respect to the —CH═CH— or —C≡C-bond and/or containing an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic unsaturation of —X—CH═CH—R″ or with the acetylenic unsaturation of —X—C≡C—R″, X being bonded to the branched silicone resin by a C—Si bond, and R″ represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the —CH═CH— or —C□C-bond. The polyolefin is reinforced by grafting the branched silicone resin onto it. | 11-08-2012 |
Patent application number | Description | Published |
20130065992 | Polymer Compositions Containing Oxazine-Based Alkoxysilanes - The invention provides a process for improving the fire resistance of a thermoplastic, thermoset or rubber organic polymer composition, characterised in that an alkoxysilane is added to a thermoplastic, thermosetting and rubber organic polymer composition and is heated to cause hydrolysis and condensation of the alkoxysilane. For example the alkoxysilane is a Benzoxazine triethoxysilane. | 03-14-2013 |
20130065993 | Polymer Compositions Containing Alkoxysilanes - The invention provides a process for improving the fire resistance of a thermoplastic or thermoset organic polymer composition, characterised in that an alkoxysilane containing at least one organic nitrogen-containing group and an alkoxysilane or silicone resin containing at least one group selected from phosphonate and phosphinate groups are added to a thermoplastic or thermosetting organic polymer composition and heated in the presence of moisture to cause hydrolysis and siloxane condensation of the alkoxysilane or alkoxysilanes. The alkoxysilanes, or alkoxysilane(s) and silicone resin, of the invention are particularly effective in increasing the fire resistance of polycarbonates and blends of polycarbonate with other resins such as polycarbonate/ABS blends. | 03-14-2013 |
20130066009 | Silicone Resins And Their Use In Polymer Compositions - Branched silicone (organopolysiloxane) resins and preparation method and use thereof are provided, which contain at least one group selected from phosphonate and phosphinate groups and at least one organic group containing nitrogen. Such silicone resins can be used in thermoplastic, thermosetting or rubber organic polymer compositions to reduce the flammability of the organic polymer compositions. | 03-14-2013 |
20130072625 | Method for the Preparation and Use of Bis (Alkoxysilylorgano)-Dicarboxylates - A method for preparing a bis(alkoxysilylorgano)dicarboxylate includes reacting a haloorganoalkoxysilane, a dimetal salt of a dicarboxyl functional compound, and a phase transfer catalyst. A quaternary iminium compound of a polyaza, polycycloalkene is useful as the phase transfer catalyst. The product may be a bis(alkoxysilylalkyl)fumarate, which is useful as a coupling agent in rubber compositions for tire applications. | 03-21-2013 |
Patent application number | Description | Published |
20110172367 | Grafted Polyethylene - A process for grafting hydrolysable silane groups to polyethylene includes reacting polyethylene with an unsaturated silane having at least one hydrolysable group bonded to Si, in the presence of a compound capable of generating free radical sites in the polyethylene. The grafted polyethylene prepared by the process can be shaped into a pipe and crosslinked by water flowing through the pipe. | 07-14-2011 |
20110178198 | POLYMERS MODIFIED BY SILANES - The invention relates to a process for grafting hydrolysable silane groups to a polyolefin, comprising reacting the polyolefin with an unsaturated silane, containing an olefinic —C═C— bond or acetylenic —C≡C— bond and having at least one hydrolysable group bonded to Si, or a hydrolysate thereof, in the presence of means capable of generating free radical sites in the polymer. The silane contains an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic —C═C— or acetylenic —C≡C— unsaturation of the silane. The unsaturated silane may also contains electron-withdrawing moiety with respect to the olefinic —C═C— or acetylenic —C≡C— bond. The invention permits to provide a silane-modified polyolefin having a high grafting efficiency while limiting/preventing polymer degradation by chain scission. The silane-modified polyolefin can be further reacted with a polar surface, a filler or a polar polymer or reacted on itself to crosslink the polyolefin and obtain enhanced physical properties of the composites made thereof. | 07-21-2011 |
20110190411 | Modified Polyolefins - The invention relates to a process for grafting hydrolysable silane groups to a polyolefin in which ethylene units, if present, form less than 50% by weight of the total polyolefin. The polyolefin is reacted with an unsaturated silane, having at least one hydrolysable group bonded to Si, or a hydrolysate thereof, in the presence of means capable of generating free radical sites in the polyolefin. The unsaturated silane has the formula R″—CH═CH—Z (I) or R″—C≡C—Z (II) in which Z represents an electron-withdrawing moiety substituted by a —SiR | 08-04-2011 |
Patent application number | Description | Published |
20140296446 | Modifying Polymeric Materials By Amines - This invention relates to the modification of polymeric materials containing reactive carbon-to-carbon unsaturation and to amines, including aziridines, which are used in such modification. A polymeric material containing carbon-to-carbon bonds can be modified by crosslinking or to make it susceptible to crosslinking. | 10-02-2014 |
20140329976 | Treatment Of Filler With Silane - This invention relates to the treatment of a carbon based filler with a hydrolysable silane to modify the surface of the filler. It also relates to a carbon based filler modified by treatment with a hydrolysable silane, and to polymer compositions containing such a modified carbon based filler. | 11-06-2014 |
20140336337 | Modifying Polymeric Materials By Amines - This invention relates to the modification of polymeric materials containing reactive carbon-to-carbon unsaturation and to amines, including piperazines, which are used in such modification. A polymeric material containing carbon-to-carbon bonds can be modified by crosslinking or to make it susceptible to crosslinking. | 11-13-2014 |
20140350277 | Hydrolysable Silanes - This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing a tertiary amine group and an ether or thioether linkage. | 11-27-2014 |
20140364560 | Hydrolysable Silanes And Elastomer Compositions Containing Them - This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing a piperazine ring and an ether or thioether linkage. | 12-11-2014 |
20140364627 | Hydrolysable Silanes - This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing an aziridine ring herein named (Az). | 12-11-2014 |
20140371392 | Polymeric Materials Modified By Silanes - This invention relates to a process for modifying a polymeric material having a carbon backbone containing carbon-to-carbon unsaturation by reaction with a hydrolysable silane. The polymeric material can for example be a diene elastomer, and the invention relates to a composition comprising a diene elastomer, a hydrolysable silane and a curing agent for the diene elastomer, and also to the use of a hydrolysable silane as a coupling agent for a diene elastomer composition containing a filler. | 12-18-2014 |