Polycarbonate compositions, methods of manufacture thereof and articles comprising the same
View Patent ↗Disclosed herein is a polycarbonate composition comprising polycarbonate; a colorant composition that comprises a white colorant in an amount of about 1 to about 15 wt %, based on the total weight of the polycarbonate composition; a fibrous composition; and an acid composition; wherein the weight ratio of the acid composition to the colorant composition is about 0.0001:1 to about 1:1. Disclosed herein too is a method comprising blending a polycarbonate composition that comprises polycarbonate; a colorant composition that comprises a white colorant in an amount of about 1 to about 15 wt %, based on the total weight of the polycarbonate composition; a fibrous composition; and an acid composition; wherein the weight ratio of the acid composition to the colorant composition is about 0.0001:1 to about 1:1.
1. A polycarbonate composition comprising:
polycarbonate;
a colorant composition that comprises a white colorant in an amount of about 1 to about 15 weight percent, based on the total weight of the polycarbonate composition;
a fibrous composition; and
sodium pyrophosphate and/or an acid composition; wherein the weight ratio of the sodium pyrophosphate or the acid composition to the colorant composition is about 0.0001:1 to about 1:1; where the acid composition comprises and acid and water.
2. The polycarbonate composition of claim 1 , wherein the polycarbonate has a number average molecular weight of about 10,000 to about 100,000 grams per mole.
3. The polycarbonate composition of claim 1 , wherein the colorant composition is present in an amount of about 3 to about 12 weight percent, based on the total weight of the polycarbonate composition.
4. The polycarbonate composition of claim 1 , wherein the colorant composition comprises titanium dioxide, zinc sulfide, lithopone, zinc oxide or a combination comprising at least one of titanium dioxide, zinc sulfide, lithopone or zinc oxide.
5. The polycarbonate composition of claim 1 , wherein the acid composition comprises phosphorous acid, phosphoric acid, hydrochloric acid, sulfuric acid, acetic acid, or a combination comprising at least one of the foregoing acids.
6. The polycarbonate composition of claim 1 , comprising about 0.0001 to about 5 weight percent of the acid composition, based on the total weight of the polycarbonate composition.
7. The polycarbonate composition of claim 6 , comprising about 0.001 to about 3 weight percent of the acid composition, based on the total weight of the polycarbonate composition.
8. The polycarbonate composition of claim 6 , comprising about 0.01 to about 2 weight percent of the acid composition, based on the total weight of the polycarbonate composition.
9. The polycarbonate composition of claim 1 , wherein the acid composition comprises an acid, the acid being an inorganic acid, an organic acid, an acidic salt, a polymeric acid, a fatty acid, or a combination comprising at least one of the foregoing acids.
10. The polycarbonate composition of claim 9 , wherein the fatty acid is an oleic acid, a linoleic acid, a myristoleic acid, a palmitoleic acid, a arachidonic acid, or a combination comprising at least one of the foregoing acids.
11. The polycarbonate composition of claim 9 , wherein the polymeric acid is a polyacrylic acid, a polystyrene sulfonic acid, a poly(3-thiopheneacetic acid), a polyglycolic acid, or a combination comprising at least one of the foregoing polymeric acids.
12. The polycarbonate composition of claim 1 , wherein the weight ratio of the acid composition to the colorant composition is about 0.005:1 to about 0.3:1.
13. The polycarbonate composition of claim 1 , wherein the weight ratio of the acid composition to the colorant composition is about 0.001:1 to about 0.1:1.
14. The polycarbonate composition of claim 1 , wherein the fibrous composition comprises glass fibers.
15. An article comprising the polycarbonate composition of claim 1 .
16. A method comprising:
blending a polycarbonate composition that comprises:
polycarbonate;
a colorant composition that comprises a white colorant in an amount of about 1 to about 15 weight percent, based on the total weight of the polycarbonate composition;
a fibrous composition; and
an acid composition; wherein the weight ratio of the acid composition to the colorant composition is about 0.0001:1 to about 1:1; where the acid composition comprises an acid and water.
17. The method of claim 16 , wherein the blending comprises melt blending.
18. The method of claim 16 , further comprising injection molding the polycarbonate composition.
19. An article manufactured by the method of claim 16 .
20. A polycarbonate composition comprising:
polycarbonate;
a colorant composition that comprises a white colorant in an amount of about 1 to about 15 weight percent, based on the total weight of the polycarbonate composition;
a fibrous composition; and
an acid composition; wherein the acid composition comprises an inorganic acid, a polymeric acid, a fatty acid, or a combination comprising at least one of the foregoing acids; and wherein the weight ratio of the acid composition to the colorant composition is about 0.0001:1 to about 1:1.
21. The polycarbonate composition of claim 20 , wherein the colorant composition is present in an amount of about 3 to about 12 weight percent, based on the total weight of the polycarbonate composition.
22. The polycarbonate composition of claim 20 , wherein the colorant composition comprises titanium dioxide, zinc sulfide, lithopone, zinc oxide or a combination comprising at least one of titanium dioxide, zinc sulfide, lithopone or zinc oxide.
23. The poycarbonate of claims 20 , wherein The acid composition comprises phosphorous acid, phosphoric acid, hydrochloric acid, sulfuric acid, acetic acid, or a combination comprising at least one of the foregoing acids.
24. The polycarbonate composition of claim 20 , comprising about 0.0001 to about 5 weight percent of the acid composition, based on the total weight of the polycarbonate composition.
25. The polycarbonate composition of claim 20 , wherein the fatty acid is an oleic acid, a linoleic acid, a myristoleic acid, a palmitoleic acid, a arachidonic acid, or a combination comprising at least one of the foregoing acids.
26. The polycarbonate composition of claim 20 , wherein the polymeric acid is a polyacrylic acid, a polystyrene sulfonic acid, a poly(3-thiopheneacetic acid), a polyglycolic acid, or a combination comprising at least one of the foregoing polymeric acids.
27. A polycarbonate composition comprising:
polycarbonate;
a colorant composition that comprises a white colorant in an amount of about 1 to about 15 weight percent, based on the total weight of the polycarbonate composition;
a fibrous composition; and
sodium pyrophosphate; wherein the weight ratio of the sodium pyrophosphate to the colorant composition is about 0.0001:1 to about 1:1.
28. The polycarbonate composition of claim 27 , wherein the polycarbonate has a number average molecular weight of about 10,000 to about 100,000 grams per mole.
29. The polycarbonate composition of claim 27 , wherein the colorant composition is present in an amount of about 3 to about 12 weight percent, based on the total weight of the polycarbonate composition.
30. The polycarbonate composition of claim 27 , wherein the colorant composition comprises titanium dioxide, zinc sulfide, lithopone, zinc oxide or a combination comprising at least one of titanium dioxide, zinc sulfide, lithopone or zinc oxide.
31. The polycarbonate composition of claim 27 , wherein the weight ratio of the acid composition to the colorant composition is about 0.005:1 to about 0.3:1.
32. The polycarbonate composition of claim 27 , wherein the weight ratio of the acid composition to the colorant composition is about 0.001:1 to about 0.1:1.