Patent ID: 6312509
Filing Date: 2001-11-06
Classification: C09D

Abstract:
A rust preventive coating composition which is substantially the same as that comprising components (a), (b), (c), (d), (e), (f), (g), (j), (k) and, optionally, (h), (i), (l), (m), (n), (o) and (p) and/or any in situ reaction product thereof:(a) 5 to 60 weight percent of micro-crystalline wax having a melting point of at least about 150.degree. F.,(b) 0.02 to 25 weight percent of i) HTCR oil or ii) a mixture of naphthenic and paraffinic oil,(c) 0.05 to 20 weight percent of oil-soluble alkali-metal sulfonate having a molecular weight in the approximate range of from 400 to 550,(d) 10 to 50 weight percent of pulverized gilsonite,(e) 1 to 25 weight percent of boiled linseed oil or processed marine oil,(f) 0.5 to 5 weight percent of naphthenic acid,(g) 15 to 70 weight percent of solvent,(h) 0.05 to 12 weight percent of cationic salt body-building viscosity modifier,(i) 10 to 35 weight percent of leafing or non-leafing aluminum paste,(j) 1 to 18 weight percent of a gel grade of attapulgite or hydrous magnesium aluminum silicate with gelling and rheological properties,(k) 1 to 12 weight percent of emulsifier,(l) 1 to 30 weight percent of fibrous powder which is water dispersible with agitation,(m) 2 to 27 weight percent of a dry ground muscovite mica powder in platelet form,(n) 0.5 to 17 weight percent of silica gel desiccant,(o) 2 to 35 weight percent of light-fast, fast-drying, dispersed, UV-resistant pigment,(p) a dispersion of butyl rubber or polyisobutylene in paraffin or microcrystalline wax;wherein the weight percentages are based of the total weight of formulating components.