GB667184A - Improvements in or relating to the packing of glands or seals - Google Patents
Improvements in or relating to the packing of glands or sealsInfo
- 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
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.
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) |
-
1949
- 1949-03-08 GB GB6359/49A patent/GB667184A/en not_active Expired
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