Abstract: A hose assembly of limited conductivity designed to dissipate static electric charges, such as encountered in paint spraying. The hose assembly includes a reinforced hose 1 fitted over the nipple 15 of a stem 13, and a shell 14 holding the hose 1 in compression over the nipple 15 of the stem 13. The novel element is a stripe of conductive polymer 11 in the cover 9 of the hose 1 extending from the static drain 7 to the surface of the hose 1. When the shell 14 is compressed over the hose 1, the conductive stripe 11 is seated and held in secure electrically conducting relationship with the inner diameter of the shell 14.
Abstract: Nylon 6 with increased wear life is comprised of a major weight amount of nylon 6 and minor weight amounts of a polyester elastomer, a polyolefin and a polyfluorocarbon.
Abstract: Nylon 6 molding and extrusion grade resins are stabilized against UV degradation by the addition of small amounts of carbon black. The elongation and impact strength of the nylon are preserved, if not improved, by melt blending from 5% to 50% by weight of an elastomeric polyester with the nylon and carbon black.
Abstract: An epoxy coating powder applied in a fusion coating process that yields a low gloss, wrinkled finish. The coating composition is a heat reactive epoxy resin in which the wrinkled finish results from the use of methylene disalicylic acid as the curing agent for the epoxy resin.
Abstract: A plastic bearing and wear surface is disclosed which has low friction fibers protruding from its surface. The bearing is made by filling a plastic matrix with low friction fibers whose mechanical properties relate to those of the matrix in such a manner that when the matrix is machined, the matrix material will selectively be removed leaving some of the fibers imbedded in the matrix with their free ends protruding from and distributed over the machined surface.
Abstract: Ultrahigh molecular weight polyethylene molding powders with improved melt characteristics are disclosed that can be processed with conventional melt forming equipment such as screw extruders and injection molding machines. The molding powders are comprised of from 70 to 95 weight percent ultrahigh molecular weight polyethylene, from 5 to 30 weight percent of an intermediate molecular weight polyethylene and from 0.1 to 10 percent of a finely divided nucleating agent.
Abstract: An X ray scattering device for implantation in the human body is disclosed which is comprised of finely divided barium titanate uniformly dispersed in a nontoxic plastic binder.
Abstract: A thermoplastic hose is disclosed in which a reinforcement layer is made fom a combination of yarns and monofilaments to provide stereo interstices where mechanical bonds between the reinforcement and its adjacent element of the hose can be established.
Abstract: Minor amounts of a reactive epoxy resin and a polyvinyl acetal are included within thermoplastic coating powders to improve adhesion to substrates.
Abstract: A method for incorporating a low melting lubricant filler in a polymeric matrix by mixing the lubricant filler with a monomer or polymer precursor while the filler and the monomer or precursor are in the liquid phase and subsequently polymerizing the mixture. The polymerizable mixture is prepared using nonintensive mixing to preserve the discrete phase of the lubricant filler.
Abstract: A bowl-shaped wear liner for a center plate assembly has an out-turned upper flange that guides the center plate into the center plate bowl during assembly and deforms to seat in sealing relationship with the facing sidewalls of both the center plate and the center plate bowl.
Abstract: Reinforced polylactams are disclosed in which the polylactam chains are bound by the common attachment of their ends to discrete filler particles. The polymer is prepared by the base catalyzed anionic polymerization of lactams in which a precursor initiator species is chemically attached to the surface of the filler particles and polymerization is initiated at and proceeds from the surface of the filler particles.
Abstract: A method for mounting one element in surrounding relationship to another element is disclosed in which a groove is provided on the OD of the inner element and a complementary groove is provided on the ID of the outer element so that when the parts are assembled, a channel is defined into which a locking device may be inserted to prevent relative lateral movement between the inner and outer elements.
Abstract: Novel polyamides are prepared having end groups especially selected to impart special properties to the polymer. These polyamides are prepared by utilizing anionic polymerization processes and the end groups can be of a type that, under existing methods, normally will hinder or completely stop the anionic polymerization reaction. The hindering effect of these end groups is largely overcome through the formation of novel initiator compounds that enables the polymerization reaction to proceed with extreme rapidity at comparatively low temperatures despite the presence of these end groups.
Abstract: A floating pedestal liner for railroad trucks and a method for its mounting are disclosed in which the liner is restricted from moving in a vertical direction but is free to move in a horizontal plane either laterally or longitudinally.
Abstract: Sound-damping liners for bar stock guide tubes and the like for use in automatic metal working machines, said liners being produced from ultra high molecular weight polyethylene; means insulating the outer periphery of the liner from the inner surface of the guide tube; and means for retaining the liner within the guide tube.
Abstract: Polyacetal scrap materials are reclaimed for further use by intimately mixing a minor percentage of a polysiloxane fluid with the scrap polyacetal materials. By this technique, undue degradation of the polymer and an undesirable loss in elongation are avoided.
Type:
Grant
Filed:
January 18, 1977
Date of Patent:
October 3, 1978
Assignee:
The Polymer Corporation
Inventors:
Michael A. Hanley, Lawrence A. Miller, Irvin H. Kinsey
Abstract: Thermostat metal compositions are disclosed which have a substantially uniform flexivity over a broad range of operating temperatures and which respond rapidly to changes in ambient temperatures. These results are achieved by using, as an intermediate layer, a major portion by volume of a thermostat metal that has a thermal conductivity in excess of 2,400 BTU in/ft.sup.2 hr.degree. F.
Abstract: A ready access cabinet is disclosed that is comprised of a plurality of panel sections arranged in hinged and spring-tensioned relationship to each other so that when a locking pin is removed, the front, top, bottom and side panels are "exploded" from their engaged closure position into a fully opened one so that immediate and unencumbered access to the contents of the cabinet is provided.