Patent ID: 6426327
Filing Date: 2002-07-30
Classification: C11D,C23G

Abstract:
A process for depositing a coating on a substrate surface comprising the step of applying to at least a portion of at least one surface of the substrate a liquid coating composition comprising:(A) an azeotrope-like composition including (a) perfluorobutyl methyl ether, consisting essentially of perfluoro-n-butyl methyl ether and perfluoroisobutyl methyl ether and mixtures thereof, and (b) organic solvent; and (B) at least one coating material which is soluble or dispersible in the azeotrope-like composition which composition is selected from the group consisting of: (i) compositions consisting essentially of about 75 to 17 weight percent of the ether and about 25 to 83 weight percent trans-1,2-dichloroethylene that boil at about 39Â° to 41Â° C. at about 729 torr; (ii) compositions consisting essentially of about 72 to 29 weight percent of the ether and about 28 to 71 weight percent cis-1,2-dichloroethylene that boil at about 51Â° to 53Â° C. at about 741 torr; (iii) compositions consisting essentially of about 98 to 68 weight percent of the ether and about 2 to 32 weight percent 1,1,2-trichloroethylene that boil at about 57Â° to 59Â° C. at about 736 torr; (iv) compositions consisting essentially of about 97 to 68 weight percent of the ether and about 3 to 32 weight percent 1-chlorobutane that boil at about 56Â° to 58Â° C. at about 728 torr; (v) compositions consisting essentially of about93 to 55 weight percent of the ether and about 7 to 45 weight percent 2-chlorobutane that boil at about 540 to 560 C. at about 737 torr; (vi) compositions consisting essentially of about 94 to 62 weight percent of the ether and about 6 to 38 weight percent i-butyl chloride that boil at about 54Â° to 56Â° C. at about 730 torr; (vii) compositions consisting essentially of about 72 to 13 weight percent of the ether and about 28 to 87 weight percent t-butyl chloride that boil at about 46Â° to 48Â° C. at about 733 torr; (viii) compositions consisting essentially of about 98 to 82 weight percent of the ether and about 2 to 18 weight percent 1,2-dichloropropane that boil at about 580 to 600 C. at about 724 torr; (ix) compositions consisting essentially of about 92 to 57 weight percent of the ether and about 8 to 43 weight percent 2,2-dichloropropane that boil at about 55Â° to 57Â° C. at about 735 torr; (x) the composition consisting essentially of about 82 to 8 weight percent of the ether and about 18 to 92 weight percent methylene chloride that boil at about 33Â° to 35Â° C. at about 737 torr; (xi) compositions consisting essentially of about 89 to 50 weight percent of the ether and about 11 to 50 weight percent 1-bromopropane that boil at about 52Â° to 54Â° C. at about 729 torr; and (xii) compositions consisting essentially of about 39 to 10 weight percent of the ether and 61 to 90 weight percent of HCFC-225ca/cb that boil at about 52Â° to 54Â° C. at about 738 torr. (xiii) the composition consisting essentially of about 97 to 52 weight percent of the ether and about 3 to 48 weight percent methanol that boils at about 45 to 47Â° C. at about 733 torr; (xiv) the composition consisting essentially of about 97 to 70 weight percent of the ether and about 3 to 30 weight percent ethanol that boils at about 51 to 53Â° C. at 728 torr; (xv) the composition consisting essentially of about 98 to 66 weight percent of the ether and about 2 to 34 weight percent 1-propanol boils at about 56 to 58Â° C. at about 733 torr; (xvi) compositions consisting essentially of about 99 to 75 weight percent of the ether and about 1 to 25 weight percent 2-butanol that boil at about 57 to 59Â° C. at about 742 torr; (xvii) compositions consisting essentially of about 99 to 72 weight percent of the ether and about 1 to 28 weight percent i-butanol that boil at about 57 to 59Â° C. at about 730 torr; (xviii) compositions consisting essentially of about 98 to 78 weight percent of the ether and about 2 to 22 weight percent t-butanol that boil at about 55 to 57Â° C. at about 739 torr.