Patent application number | Description | Published |
20090253854 | High purity perfluoroelastomer composites and a process to produce the same - High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided. | 10-08-2009 |
20100047498 | High Purity Transparent Perfluoroelastomer Parts and a Process to Produce the Same - Crosslinkable perfluoroelastomer compositions having low metal content and low compression set when crosslinked, and processes for producing the same, are provided. Compositions comprising terpolymers of TFE, PAVE, and CNVE having a metal content of less than 3000 ppb may be formed into high purity transparent perfluoroelastomer parts. | 02-25-2010 |
20100248324 | Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Products Obtained Therefrom and Reaction of the Expanded Products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 09-30-2010 |
20100280200 | Water Permeable Fluoropolymer Articles - A water permeable fluoropolymer article is described comprising a functional copolymer of TFE, PSVE and sulfonic acid pendant to the polymer chain, as well as methods of making the article. The method comprises providing a copolymer membrane comprising a microstructure characterized by nodes interconnected by fibrils, wherein said membrane, immersing said membrane in hot water for a period of time to render the membrane water permeable. | 11-04-2010 |
20110039960 | Expandable Functional TFE Copolymer Fine Powder, the Expanded Functional Products Obtained Therefrom and Reaction of the Expanded Products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 02-17-2011 |
20120035283 | Expandable Functional TFE Copolymer Fine Powder, the Expanded Functional Products Obtained Therefrom and Reaction of the Expanded Products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 02-09-2012 |
20120184637 | Expandable functional TFE copolymer fine powder, the expandable functional products obtained therefrom and reaction of the expanded products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 07-19-2012 |
20130084460 | Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 04-04-2013 |
20130203874 | Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 08-08-2013 |
20130203875 | Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Products Obtained Therefrom and Reaction of the Expanded Products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 08-08-2013 |
20140005286 | Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom | 01-02-2014 |
20140018457 | Expandable Functional TFE Copolymer Fine Powder, Expanded Products and Reacted Products Therefrom - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 01-16-2014 |
20140088235 | High Purity Perfluoroelastomer Composites and A Process To Produce The Same - High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided. | 03-27-2014 |
20140088238 | High Purity Perfluoroelastomer Composites And A Process To Produce The Same - High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided. | 03-27-2014 |
20150045524 | Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Products Obtained Therefrom and Reaction of the Expanded Products - A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion. | 02-12-2015 |
Patent application number | Description | Published |
20130307122 | BIPOLAR TRANSISTOR WITH EMBEDDED EPITAXIAL EXTERNAL BASE REGION AND METHOD OF FORMING THE SAME - The present invention discloses a bipolar transistor with an embedded epitaxial external base region, which is designed to solve the problem of the TED effect with the prior art structures. The bipolar transistor with an embedded epitaxial external base region of the present invention comprises at least a collector region, a base region and an external base region on the collector region, an emitter on the base region, and sidewalls at both sides of the emitter. The external base region is grown through an in-situ doping selective epitaxy process and is embedded in the collector region. A portion of the external base region is located beneath the sidewalls. The present invention discloses a method of forming a bipolar transistor with an embedded epitaxial external base region. The bipolar transistor with an embedded epitaxial external base region of the present invention avoids the TED effect and reduces the resistance of the external base region of the device so that the performance of the device is improved. The method of forming a bipolar transistor with an embedded epitaxial external base region of the present invention achieves the aforesaid bipolar transistor with an embedded epitaxial external base region, and features concise steps, a low cost and simple operations, and the structure obtained has good performance. | 11-21-2013 |
20140329368 | BIPOLAR TRANSISTOR WITH EMBEDDED EPITAXIAL EXTERNAL BASE REGION AND METHOD OF FORMING THE SAME - The present invention discloses a bipolar transistor with an embedded epitaxial external base region, which is designed to solve the problem of the TED effect with the prior art structures. The bipolar transistor with an embedded epitaxial external base region of the present invention comprises at least a collector region, a base region and an external base region on the collector region, an emitter on the base region, and sidewalls at both sides of the emitter. The external base region is grown through an in-situ doping selective epitaxy process and is embedded in the collector region. A portion of the external base region is located beneath the sidewalls. The present invention discloses a method of forming a bipolar transistor with an embedded epitaxial external base region. The bipolar transistor with an embedded epitaxial external base region of the present invention avoids the TED effect and reduces the resistance of the external base region of the device so that the performance of the device is improved. The method of forming a bipolar transistor with an embedded epitaxial external base region of the present invention achieves the aforesaid bipolar transistor with an embedded epitaxial external base region, and features concise steps, a low cost and simple operations, and the structure obtained has good performance. | 11-06-2014 |