GB667184A - Improvements in or relating to the packing of glands or seals - Google Patents

Improvements in or relating to the packing of glands or seals

Info

Publication number
GB667184A
GB667184A GB6359/49A GB635949A GB667184A GB 667184 A GB667184 A GB 667184A GB 6359/49 A GB6359/49 A GB 6359/49A GB 635949 A GB635949 A GB 635949A GB 667184 A GB667184 A GB 667184A
Authority
GB
United Kingdom
Prior art keywords
plasticizer
composition
polymeric material
mixture
seals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6359/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB667184A publication Critical patent/GB667184A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/20—Packing materials therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A composition for packing glands or seals comprises a suspension of polyvinyl chloride, or a copolymer of vinyl chloride and vinyl acetate, in a mixture of coal tar pitch and at least one plasticizer which is a non-solvent for the polymeric material in the cold, but a solvent therefor when hot. Plasticizers specified are dibutyl, dihexyl, and dioctyl phthalates and sebacates, methyl glycol adipate, ethyl lactate, tricresyl phosphate and chlorinated diphenyl or dibenzyl. The composition is in the form of particles of the polymeric material suspended in a fluid medium of pitch and plasticizer, the mixture hardening on standing at room temperature, or on warming, by the homogenization of the constituents. Specification 662,749 is referred to.
GB6359/49A 1948-03-11 1949-03-08 Improvements in or relating to the packing of glands or seals Expired GB667184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR667184X 1948-03-11

Publications (1)

Publication Number Publication Date
GB667184A true GB667184A (en) 1952-02-27

Family

ID=9014258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6359/49A Expired GB667184A (en) 1948-03-11 1949-03-08 Improvements in or relating to the packing of glands or seals

Country Status (1)

Country Link
GB (1) GB667184A (en)

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