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Encyclopedia > Polyvinylidene chloride

Polyvinylidene chloride is a polymer derived from vinylidene chloride. Disclaimer and references 1,1-Dichloroethene, commonly called 1,1-dichloroethylene or 1,1-DCE, is an organochloride with the molecular formula C2H2Cl2. ...


In 1933, Ralph Wiley, a Dow Chemical lab worker, accidentally discovered polyvinylidene chloride. Wiley, employed to clean glassware, came across a vial he could not scrub clean. Dow researchers made this material into a greasy, dark green film, which they called Saran. The military sprayed it on fighter planes to guard against salty sea spray and carmakers used it for upholstery. Dow later got rid the of Saran's green color and unpleasant odor. The Dow Chemical Company (NYSE: DOW) is a multinational corporation headquartered in Midland, Michigan, USA. In terms of market capitalization, it is the second-largest chemical company in the world, smaller than only DuPont. ... Saran is the trade name for a number of polymers made from vinylidene chloride (especially polyvinylidene chloride or PVDC), along with other monomers. ...



Plastics
Polyethylene (PE) Polypropylene (PP) Polystyrene (PS)
Polyethylene terephthalate (PETE) Polyamide (PA) Polyester
Polyvinyl chloride (PVC) Polycarbonate (PC) Acrylonitrile butadiene styrene (ABS)
Polyvinylidene chloride (PVDC) Polytetrafluoroethylene (PTFE) Polybutadiene

  Results from FactBites:
 
Patent 4565743 (2987 words)
Polyvinylidene chloride coating is applied to one or both surfaces of the thus biaxially-stretched polypropylene film.
The polyvinylidene chloride coating is formed, in general, to be 0.5-3 microns in thickness after dried, preferably 0.8-2 microns, most preferably 1.0-1.5 microns.
Acrylic copolymer resin layer(s) may optionally be formed on one or both surfaces of the polyvinylidene chloride resin layer, in such case that the vinylidene chloride content in the resin is large, in order to improve the heat-sealing property and to further reinforce said property.
Vinylidene chloride (EHC 100, 1990) (15564 words)
Vinylidene chloride was not detected in oysters from the Inner Harbour Navigation Canal nor in clams from the Chef Menteur Pass.
In accordance with evidence for the formation of reactive metabolites of vinylidene chloride by cytochrome P-450, covalent binding was increased in liver and lung tissue by pretreatment with the P-450 inducers, phenobarbital and 3-methylcholanthrene.
The rapid destruction of vinylidene chloride in the troposphere by hydroxyl radicals (section 4.1.1) indicates that the substance is unlikely to participate in the depletion of the stratospheric ozone layer.
  More results at FactBites »

 
 

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