The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2013
Filed:
Jul. 06, 2012
Kazuki Fukushima, San Jose, CA (US);
James L. Hedrick, San Jose, CA (US);
Sung-ho Kim, Livermore, CA (US);
Robert M. Waymouth, Palo Alto, CA (US);
Kazuki Fukushima, San Jose, CA (US);
James L. Hedrick, San Jose, CA (US);
Sung-Ho Kim, Livermore, CA (US);
Robert M. Waymouth, Palo Alto, CA (US);
International Business Machines Corporation, Armonk, NY (US);
The Board of Trustees of the Leland Standford Junior University, Palo Alto, CA (US);
Abstract
Block copolymers include hydrophobic and hydrophilic blocks having repeating units derived from ring opening polymerization of one or more cyclic carbonate monomers. The carbonate monomers are independently selected from compounds of formula (II): wherein each Q' and Qgroup independently represents a hydrogen, an alkyl group, a halide, a carboxy group, an ester group, an amide group, an aryl group, an alkoxy group, or a foregoing Q′ or Qgroup substituted with a carboxy group or an ester group, at least one Q′ and Qgroup includes an ester group; each Y independently represents O, S, NH, or NQ″; n is an integer from 0 to 6, wherein when n is 0, carbons labeled 4 and 6 are linked together by a single bond; each Q″ group independently represents an alkyl group, an aryl group, or a foregoing Q″ group substituted with a carboxy group, or an ester group.