A thermoplastic elastomer material for the manufacture of seals in pharmaceutical dispensing devices is described. It is formed from a blend including a propylene component with isotactic crystallinity; and one or more polymer of polypropylene, polyethylene or their copolymers.
Car window seal
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 159 KB
- Volume
- 2010
- Category
- Article
- ISSN
- 1350-4789
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โฆ Synopsis
PATENTS
differential unit. The setting of the joint with shims will cause variable loading on a conventional O-ring or gasket. The gasket has tubular sections which align with the oil-feed passages in the components of the axle. The flange of the gasket (43) can have a thickness, and compressibility characteristics, selected such that pressure applied to the flange is greater than pressure applied to the shim, but this condition may be reversed.
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Cross-section of the mechanical seal with pressurized feed to the seal face described in WO 2006/051702, and a detail of the annular face grooves.