Claims
- 1. A hydrophobic coating system for application to an inorganic, organic or metallic substrate comprising a primary coating comprising the residue obtained by drying a composition consisting essentially of an aqueous emulsion of
- (a)(i) a prepolymeric- or polymeric material for imparting hydrophobic, lubricous, and non-stick characteristics,
- (a)(ii) a prepolymeric- or polymeric material for imparting adhesion and hardness properties; and, optionally,
- (a)(iii) a curing agent for a prepolymeric material consisting essentially of a polyamine; and, optionally,
- (a)(iv) a pigment, wherein said cured, dried residue develops non-stick, hydrophobic or semi-hydrophobic, and hardness characteristics, and a surface energy in the range of from about 22 to about 28 dynes/cm.sup.2 ; and
- a top coating comprising
- (b)(i) a monomeric or polymeric siliconic materials adapted to provide a surface energy of from about 18 to about 21 dynes/cm.sup.2 ; and
- (b)(ii) interdigitating means for coupling said top coating to said primary coating, to thereby produce a permanent non-stick, foul-release and ice-phobic surface on said substrate.
- 2. A hydrophobic top coating as defined in claim 1 having a non-stick release adhesion of about 20 g/in. by TAPPI 502; an ultimate contact angle (water) of 85.degree. to 95.degree. by goniometer; and an ice release adhesion of from about 8 to about 12 lbs/in.sup.2 by using an apparatus shown schematically in FIG. 3.
REFERENCE TO RELATED APPLICATIONS
This application is a divisional of application Ser. No. 08/890,592, filed Jul. 9, 1997, now allowed which is a continuation of application Ser. No. 08/291,091, filed Aug. 16, 1994, now U.S. Pat. No. 5,736,249, issued Apr. 7, 1998.
US Referenced Citations (22)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0192627 |
Aug 1986 |
EPX |
2630353 |
Oct 1989 |
FRX |
WO9105659 |
May 1991 |
WOX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
890592 |
Jul 1997 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
291091 |
Aug 1994 |
|