Lubricants for vinyl chloride polymers
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsKurt Worschech, Frido Loeffelholz, Peter Wedl, Bernd Wegemund
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Abstract
Triglycerides containing hydroxy fatty acid residues, of the type obtainable by hydrogenating epoxidized natural fats and oils, are used as lubricants for the molding of polyvinyl chloride or copolymers predominantly containing vinyl chloride, and are a replacement for hardened castor oil.
Claims10
In the process of molding polyvinyl chloride or copolymers predominantly containing vinyl chloride wherein a molding lubricant is employed, the improvement comprising using a lubrication effective amount of a molding lubricant consisting essentially of triglycerides containing hydroxy fatty acid residues obtained by hydrogenating at least one epoxidized natural fat or oil selected from olive oil, linseed oil, sunflower oil, safflower oil, peanut oil, corn oil, palm oil, tall oil, lard oil, herring oil, whale oil, soybean oil, rapeseed oil, or tallow.
A molding composition comprising polyvinyl chloride or copolymers predominantly containing vinyl chloride and about 0.3 to about 3.0 parts by weight per 100 parts by weight of said polyvinyl chloride or copolymers of a molding lubricant consisting essentially of trigylcerides containing hydroxy fatty acid residues obtained from the hydrogenation of at least one epoxidized natural fat or oil selected from olive oil, linseed oil, sunflower oil, safflower oil, peanut oil, corn oil, palm oil, tall oil, lard oil, herring oil, whale oil, soybean oil, rapeseed oil, or tallow.
Dependencies are inferred from the claim text.