Profile-extruded poly(vinyl chloride) articles and method of making same
A profile-extruded article is disclosed, made of a fiber-reinforced polymer of vinyl-chloride monomer, wherein the article has a ratio of actual specific gravity to theoretical specific gravity of nearly unity. A method of making the article is also disclosed.
1. A profile-extruded article comprising a polymer and fiber present in and reinforcing the polymer, wherein the polymer comprises poly(vinyl chloride), wherein the article has a ratio of actual specific gravity to theoretical specific gravity of nearly unity, and wherein the fibers are present in the polymer in an amount of from about 5 to about 40 percent by weight.
2. The article of claim 1 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.90 to about 0.99.
3. The article of claim 1 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.95 to about 0.99.
4. The article of claim 1 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.97 to about 0.99.
5. The article of claim 1 , wherein the poly(vinyl chloride) has a weight average molecular weight ranging from about 30×10 3 to about 168×10 3 .
6. The article of claim 1 , wherein the fiber is selected from the group consisting of glass, nylon, graphite, wood, and combinations thereof.
7. The article of claim 6 , wherein the article has glass fibers.
8. The article of claim 1 , wherein the fibers have a length ranging from about 500 μm to about 1 mm.
9. A profile-extruded article comprising a polymer and fiber present in and reinforcing the polymer, wherein the polymer comprises poly(vinyl chloride), wherein the article has a ratio of actual specific gravity to theoretical specific gravity of nearly unity,
wherein the poly(vinyl chloride) has a weight average molecular weight ranging from about 30×10 3 to about 168×10 3 .
10. The article of claim 9 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.90 to about 0.99.
11. The article of claim 9 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.95 to about 0.99.
12. The article of claim 9 , the ratio of actual specific gravity to theoretical specific gravity ranges from about 0.97 to about 0.99.
13. The article of claim 9 , wherein the fiber is selected from the group consisting of glass, nylon, graphite, wood, and combinations thereof.
14. The article of claim 13 , wherein the article has glass fibers.
15. The article of claim 9 , wherein the fibers have a length ranging from about 500 μm to about 1 mm.
16. The article of claim 1 , wherein the fibers are present in the polymer in an amount of from about 5 percent to about 40 percent by weight.