Abstract:
The present invention provides an injection molded article comprising: (a) vinyl polymer; (b) an effective amount for stabilizing the vinyl polymer of tin stabilizer and metallic stearate; and (c) an effective amount for lubricating the vinyl polymer of polyethylene having a Brookfield viscosity at a temperature of 150 DEG C of between about 1,000 and about 100,000 centipoises and an acid number as determined by standardized titration of KOH of between about 1 and about 40. The present injection molded article has an improved splay rating and is useful as pipe fitting.
Abstract:
The present invention is directed to a process for treating an aqueous KF waste stream comprising at least one treatment step selected from the group consisting of inert gas stripping the aqueous KF waste stream, passing said waste stream through a carbon bed, concentrating said waste stream or a combination thereof to remove dissolved organic compounds. The present invention is also directed to subjecting the treated KF waste stream to electrodialytic splitting in a water splitting cell to form HF and either KOH or an acid depleted salt stream. The dilute HF can be concentrated to a concentrated and commercially viable product.
Abstract:
Optical fiber coatings may be prepared from compositions containing one or more vinyl ether polyester oligomers prepared by reacting an hydroxyl-terminated polyester or polyether, a polyol, and a hydroxy monovinyl ether, with one or more mono or multifunctional vinyl ether terminated monomers, which may be derived from esters or alcohols.
Abstract:
A load-absorbing retractor (24) comprising: a rotating spool or reel (24), seat belt webbing secured to the reel (24); first means (52), responsive to loads generated during an emergency situation, for deforming a portion of the reel (24) and in so doing dissipating a determinable amount of the energy.
Abstract:
A process for producing 1,1,1-trifluoroethane by reacting 1,1,1-trichloroethane with hydrogen fluoride in the presence of a fluorination catalyst under conditions sufficient to produce 1,1,1-trifluoroethane but in the absence of a solvent. The 1,1,1-trifluoroethane is useful as a refrigerant, in air conditioners, heat pumps, and as a propellant or blowing agent.
Abstract:
A gas discharge display having a base member, a spacer member, an electrode member and a window sealed to each other to form a gas tight structure. The base member, spacer member and electrode member are made from copper clad printed circuit boards and are fabricated using existing printed circuit board technology. The spacer member and electrode member have a matrix of holes aligned with each other along orthogonal rows and columns. Parallel lower electrodes are provided on the surface of the base member aligned with either the rows or columns. Cylindrical upper electrodes are provided in the holes of the electrode member and are connected to each other by parallel electrical connectors provided on the surface of the electrode member orthogonal to the parallel electrodes on the base member. The display is sealed with an ionizable gas contained within the holes of the spacer and electrode members.
Abstract:
This invention relates to vinyl ether-based coatings for which properties such as color stability, thermal stability, mechanical stability, hydrolytic stability, and resistance to embrittlement may be maintained and properties hydrogen generation and blocking are minimized. The coatings comprise a vinyl ether-containing composition polymerizable by actinic, gamma ray, or electron beam radiation comprising: (a) an oligomer or a mixture of oligomers which are monofunctional, multifunctional, or a mixture of both monofunctional and multifunctional and which have a reactive functionality chosen from the group consisting of epoxy, acrylate, vinyl ether, maleate, or mixtures thereof; (b) monomers which are monofunctional, multifunctional, or a mixture of both monofunctional and multifunctional monomers and which have a reactive functionality chosen from the group consisting of epoxy, acrylate, vinyl ether, maleate, or mixtures thereof, wherein at least one of (a) or (b) must contain a vinyl ether functionality; (c) a photoinitiator, optionally including a sensitizer, chosen from the group consisting of a cationic photoinitiator and a radical photoinitiator; and (d) a thermal oxidation stabilizer. The composition also comprises additives including hydrogen stabilizers; mixtures of hindered phenols, organic sulfides or disulfides, and transition metal salts of organic compounds. Adhesion to a substrate, particularly glass, is achieved by coupling agents including vinyl ether urethane siloxane compounds.
Abstract:
An improved method for forming planarization films which remain adhered to substrates upon exposure to heat comprising first applying a polymeric solution containing a low molecular weight novolac resin, a surfactant selected from the group consisting of a non-fluorinated hydrocarbon, a fluorinated hydrocarbon and combinations thereof, and an optional organic solvent to a substrate, followed by heating the substrate.
Abstract:
A room temperature vulcanizable silicone rubber composition with high elongation and low modulus comprising 10-90 percent by weight polydiorganosiloxane having terminal hydroxyl groups, 1-10 percent by weight phenyl tris-functional ketoximino-containing silane crosslinker, 0-14 percent by weight of a reinforcing or 0-60 percent by weight of a nonreinforcing filler or semi-reinforcing filler or a mixture thereof for a total of all fillers in the range of from about 6-60 percent by weight, from 0-2.5 percent by weight of an organofunctional silane adhesion promoter and an optional plasticizer and catalyst. These compositions cure to elastic materials useful as caulking materials, adhesives, coatings and encapsulating materials for the construction and other industries.
Abstract:
A piston arrangement for a master cylinder (10) having a pin (68) for linking a center compensation valve (31) in primary and secondary piston (15, 16) with a stop member (28, 30). The primary and secondary pistons (15, 16) each have a pin (68) located in a blind bore (40) which has a cylindrical body (70) with a first semi-spherical head (72) on a first end and a second semi-spherical head (74) located on a second end. A valve return spring (58) acts on a poppet assembly (54) of each compensation valve (31) to position a stem (56) between the first and second semi-spherical heads (72, 74) to hold the pins (68) in the primary and secondary pistons (15, 16). When a piston return spring (20, 22) moves the primary and secondary pistons (15, 16) toward a rest position, the second semi-spherical heads (74) are held stationary as the pins (68) pivot about the first semi-spherical heads (72) to act on the stems (56) and move the poppets (54) away from seats (66) and communicate fluid from a source (27) to pressurizing chambers (24, 26) associated with the primary and secondary pistons (15, 16).