(12) United States Patent (10) Patent No.: US 7,576,170 B2 Perry Et Al
US00757617OB2 (12) United States Patent (10) Patent No.: US 7,576,170 B2 Perry et al. (45) Date of Patent: Aug. 18, 2009 (54) CYCLIC SILOXANE COMPOSITIONS FOR 6,046,156 A 4/2000 Perry THE RELEASE OF ACTIVE INGREDIENTS 6,054,547 A 4/2000 Perry et al. 6,063,365 A 5, 2000 Schefer et al. (75) Inventors: Robert J. Perry, Niskayuna, NY (US); 6,075,111 A 6/2000 Perry et al. Mark D. Leatherman, Elmsford, NY 6,077.923 A 6/2000 Perry et al. (US); Shahid Murtuza, Albany, NY 6,083,901 A 7/2000 Perry et al. (US) 6,121,343 A 9/2000 Hongo et al. 6,143,309 A 11/2000 Legrow et al. (73) Assignee: Momentive Performance Materials, 6,153,578 A 11/2000 Perry Albany, NY (US) 6,200,949 B1 3/2001 Reijmer et al. 6,228,380 B1 5, 2001 LeGrow et al. (*) Notice: Subject to any disclaimer, the term of this 6,262,287 B1 7/2001 Anderson et al. patent is extended or adjusted under 35 6,267,977 B1 7/2001 LeGrow et al. U.S.C. 154(b) by 993 days. 6,309,715 B1 10/2001 Lindauer et al. 6,322,777 B1 1 1/2001 Perry et al. (21) Appl. No.: 10/742,415 6,325,274 B2 12/2001 Esumi et al. 6,325,859 B1 12/2001 De Roos et al. (22) Filed: Dec. 19, 2003 6,435,423 B2 8/2002 Hurry et al. (65) Prior Publication Data 6,624,136 B2 9, 2003 Guerinet al.
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