Abstract: A conjugated or partially conjugated polymer including a structural unit of Formula (I); where T is an aryl or heteroaryl group that may be substituted or unsubstituted, or a C1-C24 alkyl group; R1 is alkyl, alkoxy, aryl group, cyano, or F; and a and b are independently selected from 1, 2 or 3. In addition, a composition of Formula (IV); wherein X is a halogen or a boronate group.
Type:
Grant
Filed:
February 23, 2006
Date of Patent:
October 11, 2011
Assignee:
Sumitomo Chemical Company, Limited
Inventors:
Wanglin Yu, Weishi Wu, James J. O'Brien
Abstract: Glass coatings on metals including Ti, Ti6A14V and CrCo were prepared for use as implants. The composition of the glasses was tailored to match the thermal expansion of the substrate metal. By controlling the firing atmosphere, time, and temperature, it was possible to control the reactivity between the glass and the alloy and to fabricate coatings (25-150 ?m thick) with excellent adhesion to the substrate. The optimum firing temperatures ranged between 800 and 840° C. at times up to 1 min in air or 15 min in N2. The same basic technique was used to create multilayered coatings with concentration gradients of hydroxyapatite (HA) particles and SiO2.
Type:
Grant
Filed:
April 30, 2001
Date of Patent:
September 6, 2011
Assignee:
The Regents of the University of California
Inventors:
Antoni P. Tomsia, Eduardo Saiz, Jose M. Gomez-Vega, Sally J. Marshall, Grayson W. Marshall