Colored reinforced articles of manufacture and method of making the same
View Patent ↗The present invention provides a colored reinforced article of manufacture having a substantially uniform distribution of color. The colored reinforced article of manufacture comprises a fiber-reinforced thermosetting resin matrix and a non-appertured colored veil in the thermosetting resin matrix.
1. A method of making a colored reinforced article of manufacture, comprising:
(a) impregnating reinforcing fiber and a non-apertured colored veil having a pore size average of about 10 μm to 350 μm with an uncolored thermosetting resin matrix comprising a thermosetting resin selected from the group consisting of unsaturated polyester, phenolic, epoxy and vinyl ester resins; and
(b) passing the resin-impregnated reinforcing fiber and colored veil though a die to provide the colored reinforced article of manufacture.
2. The method according to claim 1 , wherein step (a) of impregnating fiber and a non-apertured colored veil comprises passing the fiber and veil through a bath containing the uncolored thermosetting resin matrix.
3. The method according to claim 1 , wherein the die is heated to a temperature of about 270° to 450° F.
4. The method according to claim 2 , wherein the non-apertured colored veil is a spunlaced or spunbonded nonwoven fabric.
5. The method according to claim 4 , wherein the spunlaced or spunbonded nonwoven fabric is a polyester fabric.
6. The method according to claim 1 wherein the veil fabric is a nonwoven polyamide fabric.
7. The method according to claim 1 wherein the veil fabric is a nonwoven glass fabric.
8. The method according to claim 1 , wherein the thermosetting resin is unsaturated polyester resin.