Coatings
AssigneeJotun AS
InventorsKu-sik Jung, Hyun-ho Shin, Erik Risberg
Life of this patent
Estimating the term…
Abstract
An ultra-high solids content primer coating composition comprising: (i) 5.0 to 50 wt % of at least one bisphenol F epoxy resin; (ii) 1.5 to 12 wt % of at least one silane; (iii) 0 to 20 wt % of at least one hydrocarbon resin; (iv) 0 to 15 wt % of at least one reactive diluent; (v) at least one curing agent; wherein said composition has a solids content of at least 90 wt % according to ASTM D5201-05; wherein said composition has a viscosity of 200 to 800 cps at 23° C. and 50% RH (ASTM D4287); and wherein the ratio between hydrogen equivalents in the curing agent and epoxy equivalents of the coating composition is in the range 50:100 to 120:100.
Claims20
An ultra-high solids content primer coating composition comprising:
- (i) 5.0 to 50 wt %, based on the total weight of the composition, of at least one bisphenol F epoxy resin;
- (ii) 1.5 to 12 wt %, based on the total weight of the composition, of at least one silane;
- (iii) 0 to 20 wt %, based on the total weight of the composition, of at least one hydrocarbon resin;
- (iv) 1.0 to 15 wt %, based on the total weight of the composition, of at least one reactive diluent;
- and
- (v) at least one curing agent;
- wherein said composition has a solids content of at least 90 wt % measured according to ASTM D5201-05;
- wherein said composition has a viscosity of 200 to 800 cps at 23° C. and 50% RH (ASTM D4287);
- wherein the ratio between active hydrogen equivalents in the at least one curing agent and epoxy equivalents of the coating composition is in the range 50:100 to 120:100;
- and
- wherein the ultra-high solids content primer coating composition has a pot life at 23° C. of more than 70 minutes.
Dependencies are inferred from the claim text.