Abstract: What is disclosed herein deals with low to medium pressure, high temperature, all ceramic, air-to-air, indirect heat exchangers, novel ball joints; connecting slip ring collars for ceramic tubes, that are useful in such heat exchangers, systems comprising several heat exchangers or systems comprising heat exchangers that are fabricated such that they provide more efficient heat exchangers than has been possible heretofore.

Abstract: The present invention relates to use of an inhibitor compound in an organosilicon composition for inhibiting curing of the organosilicon composition by a hydrosilylation reaction at a temperature of 40° C. to 100° C., or 100° C. and above, and a pressure of 1×106 N/m2 to 5×106 N/m2, or 5×106 N/m2 and above. In a preferred application the organosilicon composition cures to form a silicone gel or elastomeric seal or plug within an oil or gas well. Preferred inhibitor compound is 1-ethynyl-1-cyclopentanol or 1-ethynyl-1-cyclohexanol.

Abstract: A method of forming a branched polymer includes forming a plurality of growing linear polymer chains by polymerizing a monomer which is protected against branching and which forms a reactive end group which is in a first condition which is one of electrophilic or nucleophilic, exposing the growing linear polymer chains to a chain transfer agent to cause the reactive end group of at least a first growing linear polymer chain to reverse its electrophilic or nucleophilic character, whereby a non-reversed reactive end group on a second growing linear polymer chain reacts with the reversed reactive end group on the first growing linear polymer chain to create a branched polymer and reverses the electrophilic or nucleophilic character of the reversed reactive end group back to its first condition, whereby it may continue adding monomer in a linear fashion; and quenching the polymerization by adding a compound having multiple reactive sites capable of reacting with the reactive end groups of the polymer chains when

Abstract: Internal combustion diagnostic sensing devices, systems in which they are used, and methods for their use. The devices operate by detecting pulses created by the exhaust stream of internal combustion engines using a new and novel sensing device. The systems are comprised of a combination of the sensing devices and internal combustion diagnostic equipment. The devices and systems can be used for diagnostic operations on any internal combustion engine while the engine is operating.

Abstract: What is disclosed herein are physically cross-linked, cellular hydrogels and methods for their preparation. The cellular materials are highly resilient, hydrophilic materials having broad uses. The cellular materials are prepared by the physical crosslinking of frothed polymers and providing materials that have cellular pores provided by the use of removable materials during the formation of the cellular materials.

Abstract: A vibration damping silicone composition that exhibits an excellent vibration damping performance and long-term storage stability comprising a silicone oil, a silicone resin powder that is solid at room temperature, and a surface-hydrophobic silica powder having a pH of greater than 6 but less than 9. The composition is particularly useful in shock absorbers for electronic and/or electrical equipment such as compact disk players, compact disk changers, mini-disk players, and car navigation devices.

Abstract: A silicone composition comprising a polymer having siloxane units and two or more silicon bonded hydroxyl or hydrolyzable groups per molecule; a crosslinker; an extender material which is either an alkyl substituted aryl compound such as a heavy alkylate, or a alkylcycloaliphatic compound; and a u.v. light stabilizer comprising a benzotriazole moiety. These compositions are useful, for example as room temperature vulcanizable sealants. They retain color clarity or transparency, even on ageing.