Method and objects formed from polyurea polymers
AssigneeSan Juan Patents, Inc.
InventorKirk Sullivan
Life of this patent
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Abstract
Methods for forming large molded objects from polyurea coatings that are exceptionally durable, rigid and strong enough to remain intact under all conditions involving structural integrity, even without structural reinforcements. Such methods comprise providing a mold or substrate surface onto which the molded object will be formed. A first gelcoat layer is formed upon the mold, upon which is formed a second epoxy/polyurea coating, followed by a third polyurea coating mixed with chopped fiberglass, and a final fourth epoxy/polyurea coating. The combined coatings are allowed to cure and then removed from the mold. Such methods are exceptionally effective in the manufacture of pools and spas.
Claims11
A method for the manufacture of a molded object comprising the steps:
- a) providing a mold defining an outer surface upon which said molded object will be formed;
- b) spraying a polyaspartic coating upon said outer surface of said mold provided in step a) such that a first coating is formed;
- c) spraying an epoxy/polyurea coating over said first coating formed in step b) such that a second coating is formed;
- d) spraying a mixture of a reinforcing polyurea polymer with chopped fiberglass upon said second coating formed in step c) such that a third coating is formed;
- e) spraying an epoxy/polyurea over said third coating formed in step d) such that a fourth coating is formed;
- f) allowing said coating in step e) to cure such that said first, second, third and fourth coatings cooperate to form said molded object upon said mold;
- and
- g) removing said molded object formed in step f) from said mold.
The method of claim 13 wherein said chopped fiberglass is added in an amount of approximately 20% by weight of said reinforcing polyurea polymer.
Dependencies are inferred from the claim text.