Aqueous release agent and the use thereof
OwnerThomas Hattich, Gerhard Schusterinventors
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Abstract
A novel aqueous release agent is described which contains as release-active substances oil, fat, wax, fatty amines and/or esters of fatty acids with fatty alcohols emulsified in water as the carrier and a specific emulsifier system, which consists of a blend of neutralized cationic quaternary ammonium compounds and anionic soaps. Surprisingly the system does not flocculate despite the opposite charge of the two emulsifier components and leads to a more flexible, elastic and pressure restistant release agent film than conventional release agents for use in processes for producing articles from polyurethane foam.
Claims9
An aqueous release agent consisting essentially of:
- a) at least one of oil, wax, fat, fatty amines, and esters of fatty acids with fatty alcohols, as release-active substances, emulsified in water which acts as a carrier;
- and
- b) one or more ammonium salts of the formula [NR.sub.1 R.sub.2 R.sub.3 R.sub.4 ].sup.+ X.sup.-, as an emulsifier
- wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, independently, represent hydrogen or C.sub.1 -C.sub.25 alkyl radicals, provided that at least one of the radicals is a C.sub.1 -C.sub.25 alkyl radical, and
- wherein X.sup.- represents an anion which contains at least one higher C.sub.10 -C.sub.30 surfactant acid.
Dependencies are inferred from the claim text.