Method of making a composite with a barrier layer in a closed mold process
First Claim
1. A closed mold method of making a composite having a barrier layer, the method comprising:
- providing a mold;
applying and curing a layer of gel coat on an inside surface of the mold;
applying end curing a layer of barrier composition over the cured gel coat, the barrier composition comprising;
about 10 to about 50 wt % vinyl ester resin;
about 15 to about 60 wt % polyester resin;
0 to about 30 wt % monomer;
about 1 to about 15 wt % thickening agent;
about 0.1 to about 5 wt % accelerators;
about 1 to about 25 wt % filler; and
a catalyst;
applying a layer of fiberglass reinforcement over the cured barrier composition;
applying resin to the fiberglass reinforcement;
closing the mold;
curing the resin; and
opening the mold and removing the composite,wherein the composite has an improved surface finish compared to a compositemade with a closed mold process without the barrier composition.
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Abstract
A closed mold method of making a composite having a barrier layer. The method includes providing a mold; applying and curing a layer of gel coat on an inside surface of the mold; applying and curing a layer of barrier composition over the gel coat, the barrier composition comprising: about 10 to about 50 wt % vinyl ester resin, about 15 to about 60 wt % polyester resin, 0 to about 30 wt % monomer, about 1 to about 15 m wt % thickening agent, about 0.1 to about 5 wt % accelerators, about 1 to about 25 wt % filler, and a catalyst; applying a layer of fiberglass reinforcement over the barrier composition; applying resin to the fiberglass reinforcement; closing the mold; curing the resin; and opening the mold and removing the composite, wherein the composite has an improved surface finish compared to a composite without the barrier composition made with a closed mold process. The invention also relates to the composite made by the method.
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Citations
19 Claims
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1. A closed mold method of making a composite having a barrier layer, the method comprising:
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providing a mold; applying and curing a layer of gel coat on an inside surface of the mold; applying end curing a layer of barrier composition over the cured gel coat, the barrier composition comprising; about 10 to about 50 wt % vinyl ester resin; about 15 to about 60 wt % polyester resin; 0 to about 30 wt % monomer; about 1 to about 15 wt % thickening agent; about 0.1 to about 5 wt % accelerators; about 1 to about 25 wt % filler; and a catalyst; applying a layer of fiberglass reinforcement over the cured barrier composition; applying resin to the fiberglass reinforcement; closing the mold; curing the resin; and opening the mold and removing the composite, wherein the composite has an improved surface finish compared to a composite made with a closed mold process without the barrier composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification