POLYORGANOSILSESQUIOXANE AND PROCESS FOR PREPARING THE SAME

WIPO Patent Application WO2001060881

A3

The present invention relates to polyorganosilsesquioxane and process for preparing the same. The polyorganosilsesquioxane is obtained by various methods including polymerization of an organosilanetriol as starting materials. The polyorganosilsesquioxane has convenience in handling and controlling the rate of polymerization, and structure of highly regular form, and be imparted high functionality and various characteristics as compared to a conventional polyorganosilsesquioxane.

LEE EUNG-CHAN (KR)

PCT/KR2001/000238

January 17, 2002

February 17, 2001

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LEE EUNG CHAN (KR)

C08G77/14; C07F7/21; C08G77/04; C08G77/06; C08G77/08; C08G77/16; C08L83/04; (IPC1-7): C08G77/14; C07F7/08; C07F7/21; C08G77/06

JPH1160733A	1999-03-05
JPH07331050A	1995-12-19
JPH0859331A	1996-03-05
JPH0970641A	1997-03-18
JPH0555201A	1993-03-05
JPH10130393A	1998-05-19
JPH10161315A	1998-06-19

MASAFUMI UNNO ET AL: "Synthesis of ladder and cage silsesquioxanes from 1,2,3,4-tetrahydroxycyclotetrasiloxane", BULL. CHEM. SOC. JPN., vol. 73, no. 1, 2000, pages 215 - 220, XP001037301
MASAFUMI UNNO ET AL: "Synthesis, structure and reaction of tetrahydroxycyclotetrasiloxane", CHEMISTRY LETTER, vol. 27, no. 6, 1998, pages 489 - 490, XP002903009
MASAFUMI UNNO ET AL: "Formation of supermolecule by assembling of two different silanols", CHEMISTRY LETTER, vol. 29, no. 3, 2000, pages 242 - 243, XP002903010
See also references of EP 1268613A4

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