polysulfide rubber

polysulfide rubber
: any of various synthetic rubbers made by the reaction of a sodium polysulfide with an organic dichloride (as ethylene dichloride or a dichloro derivative of ethyl formal), characterized in general by good resistance to oxygen, light, oils, and solvents, impermeability to gases, and poor tensile strength and abrasion resistance, and used chiefly in mechanical rubber goods, in adhesives, binders, and sealing compositions, and in coatings (as for textiles)

Useful english dictionary. 2012.

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  • polysulfide rubber — polisulfidinis kaučiukas statusas T sritis chemija formulė Formulę žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. polysulfide rubber rus. полисульфидный каучук …   Chemijos terminų aiškinamasis žodynas

  • polysulfide rubber — Synthetic rubber used as a dental impression material. * * * an elastomeric synthetic rubber used in dentistry as an impression material for fixed partial prosthodontic structures, inlays for single quadrants, and dental impressions …   Medical dictionary

  • Polysulfide — Polysulfides are a class of chemical compounds containing chains of sulfur atoms. In their simplest form, polysulfides are anions with the general formula S n 2− and the structure −SSn 2S−. These anions are the conjugate bases of the hypothetical …   Wikipedia

  • polysulfide polymer — see under rubber …   Medical dictionary

  • polysulfide — poly·sul·fide (pol″e sulґfīd) 1. a sulfide that has two or more atoms of sulfur. 2. containing polysulfides; see under rubber …   Medical dictionary

  • sodium polysulfide — noun : any of several yellow compounds Na2Sn containing two or more atoms of sulfur in the molecule (as sodium tetrasulfide Na2S4) made by dissolving sulfur in an aqueous solution of sodium sulfide or sodium hydroxide and used chiefly in making… …   Useful english dictionary

  • sodium polysulfide — Chem. a yellow brown, water soluble, granular powder, Na2Sn, used chiefly in the manufacture of sulfur dyes, insecticides, and synthetic rubber. * * * …   Universalium

  • industrial polymers, major — Introduction       chemical compounds used in the manufacture of synthetic industrial materials.       In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… …   Universalium

  • O-ring — This article is about the mechanical seal. For other uses, see Oring. Typical O ring and application An O ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a disc… …   Wikipedia

  • Elastomer — An elastomer is a polymer with the property of elasticity. The term, which is derived from elastic polymer , is often used interchangeably with the term rubber, and is preferred when referring to vulcanisates. Each of the monomers which link to… …   Wikipedia

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