Patent application number | Description | Published |
20080210689 | SELF-SEALING APPARATUS FOR CHEMICAL REACTION VESSEL - According to an aspect of the invention, an apparatus for self-sealing of a reaction vessel, such that the reaction vessel may be repeatedly accessed by a fluid transfer mechanism and subsequently self-sealed, is detailed. The reaction vessel has an access opening, and the apparatus comprises a cap, a ball which is comprised of a magnetizable material (such as a ferrous metal), and a ring magnet. The cap is sized to fit over the reaction vessel access opening, and has an access port. The cap has an internal surface which faces the reaction vessel, and an external surface, which faces away from the reaction vessel. The ball is sized to fit over the cap access port, such that a portion of the ball seats partially in the cap access port on the cap internal surface, thus sealing the cap access port. According to an aspect of the invention, the ball may be comprised of a ferromagnetic material, or a magnetizable material that is preferably magnetized. The ring magnet produces a magnetic field, and is mounted to the cap on the cap external surface. The ring magnet is spaced from the cap such that the magnetic field is sufficient to hold the ball in the cap access port, and to reseat the ball in the cap access port after the reaction vessel is accessed. | 09-04-2008 |
20090229729 | BORON CONTAINING FUNCTIONALIZING AGENT - The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: | 09-17-2009 |
20110040058 | POLYMERIZATION OF ISOPRENE FROM RENEWABLE RESOURCES - The invention features compositions and methods for producing polymers of isoprene derived from renewable resources such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by the purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has δ | 02-17-2011 |
20110121108 | PLASMA POLYMERIZATION NOZZLE - A nozzle provides plasma polymerization on a cylindrical surface of an object. The nozzle includes a cylindrical body having a longitudinal axis, a coaxial cylindrical inlet for receiving plasma and the object, a radial inlet for receiving an organic precursor, and a mixing chamber for receiving the plasma and the object from the coaxial cylindrical inlet thereby providing mixing of the plasma and the organic precursor and a uniform deposition of polymer on the cylindrical surface of the object. | 05-26-2011 |
20110178261 | Purification of Isoprene From Renewable Resources - Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions. | 07-21-2011 |
20120029234 | BORON CONTAINING FUNCTIONALIZING AGENT - The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: | 02-02-2012 |
20130165578 | TIRE WITH RUBBER COMPONENT CONTAINING FUNCTIONALIZED POLYBUTADIENE AND FUNCTIONALIZED STYRENE/BUTADIENE ELASTOMERS - Pneumatic rubber tire with a component comprised of a silica reinforced rubber composition comprised of a combination of functionalized polybutadiene rubber and functionalized styrene/butadiene elastomer. | 06-27-2013 |
20130289183 | TRIGLYCERIDE CONTAINING SOLUTION POLYMERIZATION PREPARED STYRENE/BUTADIENE ELASTOMER AND TIRE WITH COMPONENT - This invention relates to vegetable oil extended rubber containing soy oil and tire with a component of such oil extended rubber. | 10-31-2013 |
20140080983 | POLYMERIZATION OF ISOPRENE FROM RENEWABLE RESOURCES - This invention relates to compositions and methods for producing polymers of isoprene derived from renewable resources, such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by its purity profile (such as lower levels of certain C | 03-20-2014 |
20140135424 | RUBBER COMPOSITION AND TIRE WITH COMPONENT COMPRISED OF POLYISOPRENE RUBBER AND SOYBEAN OIL - This invention relates to a rubber composition and tire with component comprises of such rubber composition comprised of a combination of cis 1,4-polyisoprene rubber, desirably natural rubber, and low level of soybean oil. | 05-15-2014 |
20140135437 | TIRE WITH RUBBER TREAD CONTAINING COMBINATION OF RESIN AND VEGETABLE OIL, PARTICULARLY SOYBEAN OIL - This invention relates to a tire with a circumferential rubber tread composition comprised of a silica reinforced rubber composition containing diene based polymers in combination with traction resin(s) and vegetable oil, particularly soybean oil. | 05-15-2014 |
20140187839 | PURIFICATION OF ISOPRENE FROM RENEWABLE RESOURCES - Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions. | 07-03-2014 |