Patent ID: 6620516
Filing Date: 2003-09-16
Classification: B01J,C08F,C08G,C08J,Y10T

Abstract:
An organic domain/inorganic domain hybrid material comprising:an organic domain comprising at least one water-soluble or water-dispersible organic polymer having a plurality of functional groups selected from the group consisting of anionic functional groups and nonionic functional groups and optionally having at least one cationic functional group, and an inorganic domain, said organic domain and said inorganic domain are ionically bonded to each other through said functional groups of the organic polymer to form an ionically crosslinked structure, said inorganic domain comprising a plurality of inorganic bridges, each of which independently comprises at least one silicon (Si) atom, at least two oxygen (O) atoms and at least two divalent metal atoms, wherein said at least one silicon atom and said at least two oxygen atoms together form at least one â€”Oâ€”Siâ€”Oâ€” linkage, in which said at least one â€”Oâ€”Siâ€”Oâ€” linkage is arranged longitudinally of the inorganic bridge, wherein each terminal of the inorganic bridge comprises said divalent metal atom, wherein the divalent metal atom is ionically bonded to said â€”Oâ€”Siâ€”Oâ€” linkage of the inorganic bridge and to said functional group of the organic polymer, so that said ionically crosslinked structure is formed, wherein, when said inorganic bridge comprises at least two â€”Oâ€”Siâ€”Oâ€” linkages, the two â€”Oâ€”Siâ€”Oâ€” linkages optionally have a divalent metal atom which is positioned therebetween and which is ionically bonded to oxygen atoms of the â€”Oâ€”Siâ€”Oâ€” linkages positioned adjacently to said divalent metal atom, respectively, wherein laterally, mutually adjacent inorganic bridges of said plurality of inorganic bridges are optionally linked to each other at their respective silicon atoms through at least an oxygen atom, and wherein the weight ratio of said organic domain to said inorganic domain is at least 1.0.