Gerald N Goldberg

US Patent:

40850595, Apr 18, 1978

Filed:

Mar 4, 1976

Appl. No.:

5/663704

Inventors:

Oliver Dale Smith - San Juan Capistrano CA
Gerald M. Goldberg - Chatsworth CA

Assignee:

Bunker Ramo Corporation - Oak Brook IL

International Classification:

C11D 328
C11D 732

US Classification:

252118

Abstract:

A coating remover comprised of a substantially uniform mixture of about 5 to 35 percent by weight of N-methyl-2-pyrrolidone and the balance comprised of a water-base carrier containing about 10 to 35 percent by weight organic surfactants therein so that when such liquid mixture is admixed with a gas, a substantially non-flammable, non-toxic, biodegradable and easily dispensible foam results which is characterized by a very high persistency and a very low volatility. This foam-type coating remover is useful for removing various paints, lacquers and other coatings or finishes, such as based on polyamide epoxy, cellulosic, vinyl or acrylic resins from various surfaces.