Inventors:
Joseph D. Lichtenhan - San Juan Capistrano CA, US
Joseph J. Schwab - Huntington Beach CA, US
William Reinerth - Westminster CA, US
Frank J. Feher - Costa Mesa CA, US
Assignee:
Hybrid Plastics, LLC - Fountain Valley CA
International Classification:
C08G077/08
C08G077/20
US Classification:
528 15, 528 25, 528 27, 528 31, 528 33, 528 34, 528 36, 528 40, 528 42, 528451, 528453, 528465, 528478, 528479, 528489
Abstract:
Processes have been developed for the manufacture of polyhedral oligomeric silsesquioxanes (POSS), polysilsesquioxanes, polyhedral oligomeric silicates (POS), and siloxane molecules bearing reactive ring-strained cyclic olefins (e. g. norbornenyl, cyclopentenyl, etc. functionalities). The preferred manufacturing processes employ the silation of siloxides (Si—OA, where A=H, alkaline or alkaline earth metals) with silane reagents that contain at least one reactive ring-strained cyclic olefin functionality [e. g. , XSi(CH)(CH)where y=1-2 and X=OH, Cl, Br, I, alkoxide OR, acetate OOCR, peroxide OOR, amine NR, isocyanate NCO, and R]. Alternatively, similar products can be prepared through hydrosilation reactions between silanes containing at least one silicon-hydrogen bond (Si—H) with ring-strained cyclic olefin reagents [e. g. , 5-vinyl, 2 norbornene CH═CH, cyclopentadiene]. The two processes can be effectively practiced using polymeric silsesquioxanes [RSiO] where ∞=1-1,000,000 or higher and which contain unreacted silanol or silane groups at chain terminus or branch points, on POSS nanostructures of formulas [(RSiO)], homoleptic, [(RSiO)(R′SiO)], heteroleptic, and {(RSiO)(RXSiO)}, functionalized heteroleptic nanostructures, on silanes RSiX, linear, cyclic, oligomeric and polymeric siloxanes (polymeric formula RXSi—(OSiRX)—OSiRXwhere m=0-1000, X=OH, Cl, Br, I, alkoxide OR, acetate OOCR, peroxide OOR, amine NR, isocyanate NCO, and R).