Novel UV inhibitors and stabilizers, derived from a biomass feedstock source, for thermoplastic and thermosetting resins
First Claim
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1. A method for manufacturing polymeric materials at least partially protected against UV damage, the method comprising the steps of:
- (a) mixing a polymeric resin and a reinforcement fiber to form a polymeric mixture;
(b) applying a powdered natural biomass material containing UV absorbents and antioxidants to an external surface of the polymeric mixture prior to the solidification of the polymeric mixture; and
(c) allowing the polymeric mixture to polymerize to form a solid polymeric material having an external layer of the natural biomass material.
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Abstract
The invention relates in general to biomass derived compositions and methods of applying such biomass derived compositions to protect polymeric materials from degradation due to ultraviolet (“UV”) radiation or light and weathering. More particularly, the invention relates to the use of cotton gin waste to protect polymeric composites from degradation due to UV radiation and weathering. One embodiment of the present invention includes dusting the surface of liquid polymeric materials with a cotton gin waste powder to protect the polymeric material from UV radiation induced damage.
9 Citations
21 Claims
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1. A method for manufacturing polymeric materials at least partially protected against UV damage, the method comprising the steps of:
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(a) mixing a polymeric resin and a reinforcement fiber to form a polymeric mixture; (b) applying a powdered natural biomass material containing UV absorbents and antioxidants to an external surface of the polymeric mixture prior to the solidification of the polymeric mixture; and (c) allowing the polymeric mixture to polymerize to form a solid polymeric material having an external layer of the natural biomass material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for manufacturing thermoplastic products at least partially protected from UV damage whenever the products are exposed to UV radiation, the method comprising the steps of:
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(a) blending a polymeric resin, a reinforcement fiber, and a powdered natural biomass material containing UV absorbents and antioxidants to form a liquid polymeric mixture; (b) introducing the liquid polymeric mixture into a mold having a desired shape; (c) solidifying the molded polymeric mixture; and (d) removing the solidified polymeric mixture from the mold. - View Dependent Claims (11, 12)
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13. A method for manufacturing thermoset plastic products at least partially protected from UV damage whenever the products are exposed to UV radiation, the method comprising the steps of:
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(a) mixing a polymeric resin and a reinforcement fiber to form a polymeric mixture; (b) applying a cotton gin waste to an external surface of the polymeric mixture prior to the solidification of the polymeric mixture, wherein the cotton gin waste contains a mixture of UV absorbers and antioxidants; and (c) allowing the polymeric mixture to polymerize to form a solid polymeric material having an external layer containing the cotton gin waste. - View Dependent Claims (14, 15, 16, 17, 18)
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- 19. A thermoset plastic product comprising an external surface having a wood like appearance, wherein the wood like appearance is derived from an external layer of a cotton gin waste.
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21. A thermoset plastic composite containing at least two layers of polymerized materials, the composite comprising a first layer of polymerized material containing a cotton gin waste extract including at least one phthalic acid derivative;
- and an external layer containing cotton gin waste, wherein the external layer has a wood like appearance.
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