Eastman Chemical Co. has filed Patent Application No. 20130041053, which describes a process for depolymerizing scrap polyester and producing new materials.
David Moore and John Rees have filed Patent Application No. 20130040092, which describes a new type of composite building material partially made from waste carpet.
For more information on these or any patents, please consult the U.S. Patent Office database online.
Copies of patents can be ordered by number for $3 each from the Commissioner of Patents and Trademarks, P.O. Box 1450, Alexandria, VA, 22313-1450.