Back to results
US 4,906,681 AGranted
Anti-stat for polyvinyl chloride polymers
AssigneeSherex Chemical Company, Inc.
InventorDon S. Wozniak
Life of this patent
Estimating the term…
Abstract
Disclosed is an anti-stat which is effective in polyvinyl chloride polymeric parts to dissipate charge phenomena occurring at a surface thereof. The anti-stat comprises an ethoxylated fat-forming alcohol and a dibasic acid-capped fat-forming alcohol which is incorporated in an effective amount in the polyvinyl chloride polymeric material.
Claims11
A method for making a polyvinyl chloride composition which is effective in dissipating charge phenomena occurring thereat, which comprises:
- Incorporating into said composition, an effective amount of an anti-stat comprising both an ethoxylated fat-forming alcohol and a dibasic acid-capped fat-forming alcohol;
- said ethoxylated fat-forming alcohol being the ethoxylate of an alcohol having a chain length from about 8 to about 36 carbon atoms, said alcohol may be saturated or unsaturated, and may be linear or branched in structure and may be substituted with substituents wherein said substituents are alkyl groups, ester groups, ether groups or halide, the number of moles of ethylene oxide added to said fatty alcohol ranging from 2 moles up to about 30 moles ethylene oxide per mole of fatty alcohol;
- said dibasic acid-capped fat-forming alcohol comprising an ester of a fatty alcohol having a chain length from about 8 carbon atoms to about 36 carbon atoms said fatty alcohol may be saturated or unsaturated and may be linear or branched and may be substituted with substituents wherein said substituents are alkyl groups, ester groups, ether groups or halide, said dibasic acid reacted with said fatty alcohol having the general structure:
- ##STR2## wherein R is an aromatic group or a C.sub.2 -C.sub.36 aliphatic group.
1 more element
Dependencies are inferred from the claim text.