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AssigneeHuntington Laboratories, Inc.
InventorsKim R. Smith, Frederick M. Boyd, Samih S. Abouhalkah
Estimating the term…
A quaternary ammonium compound solution comprising from about 50% to about 80% of a quaternary ammonium compound and from about 20% to about 50% of a solvent. The solvent being from about 25% to about 100% of alkylene glycol with the remainder being water. The method of making quaternary ammonium compounds comprises reacting methyl chloride and/or benzyl chloride and dialkylmethylamine and/or alkyldimethylamine in an alkylene glycol to completion and diluting the same with sufficient water to a solution in which the alkylene glycol is from about 25% to about 100% of the solvent component of the total solution and the quaternary ammonium compound is from about 50% weight to about 80% weight of the quaternary ammonium compound solution.
A non-crystallizing quaternary ammonium compound solution having a flash point of at least 200.degree. F. consisting essentially of about 50% to about 80% by weight quaternary ammonium compound, wherein said quaternary ammonium compound is selected from the group consisting of benzalkonium halides and combinations thereof with dialkyldimethylammonium halides, about 5.0% to about 50% by weight of an alkylene glycol or dialkylene glycol having the formula ##STR4## where R' is either H or CH.sub.3 and n is 1 or 2, and about 0% to about 45% by weight water.
Dependencies are inferred from the claim text.