Compositions and methods for providing coatings; materials; application techniques; and, resulting coated substrates
AssigneePloyguard Products, Inc.
InventorsFRANK WICKERT, TED EDWARD DEZURIK
Life of this patent
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Abstract
Techniques and compositions for applying films to a variety of substrates, from water-borne coating compositions, are provided. The techniques involve providing desiccant and applying the desiccant with water-borne film-forming composition, in application to a substrate. The desiccant composition provides for take up of free water in of the film-forming composition, without total reliance on ambient conditions, to advantage. Compositions, methods, techniques and resulting constructions are described. The techniques can be applied in wet thick film applications, but are not limited to such applications.
Claims30
A method of forming a film on a substrate;
- the method including steps of:
- (a) applying a wet, water-borne, film to the substrate;
- the wet film comprising:
- (i) water-borne film forming composition;
- and,
- (ii) dessicant, that is at least partially active, in an amount adequate to at least partially take up free water in the wet, water-borne, film;
- (iii) the step of applying comprises mixing two component streams:
- a first comprising the water-borne film forming composition;
- and, a second comprising the desiccant composition, during application;
- and,
- (b) allowing the film to set up on the substrate.
2-3. (canceled)
5-7. (canceled)
A two-part composition set for application of a protective film to a substrate;
- the composition set comprising:
- (a) water-borne film forming composition;
- and,
- (b) separate desiccant composition from the water-borne film forming composition;
- (i) the desiccant composition comprising desiccant suspended in non-aqueous liquid carrier;
- and,
- (ii) the composition set including enough desiccant to absorb at least 50% of free water in the water-borne film forming composition, when the two compositions are mixed together, during application, at a selected volume ratio of at least 1:1 of water-borne film forming composition to desiccant composition.
A desiccant composition suitable for mixing with an water-borne film forming composition during application to a substrate, to facilitate drying of a film on the substrate;
- the desiccant composition comprising:
- (a) desiccant suspended in a non-aqueous carrier in an amount comprising at least 10% and not more than 70%, by weight, of total weight of composition, desiccant.
Dependencies are inferred from the claim text.