Patent ID: 6303730
Filing Date: 2001-10-16
Classification: C08F,C08G,C09K

Abstract:
A process for the preparation of an organic/inorganic composite lean in hydroxyl groups, comprising the steps of:(1) non-hydrolytically condensing one or more silanes, at least a part of which contain a group comprising at least one polymerizable C--C double or triple bond, where the group is linked to Si by a Si--C bond,thereby producing a condensation product; and(2) thermally and/or photochemically polymerizing the condensation product;wherein at least one of the following is true:(a) at least one fluorinated polymerizable organic monomer which can undergo a polymerization reaction with the polymerizable groups of the silanes condensed in step (1) is added to the condensation product prior to step (2), and(b) nanoparticles having a low hydroxyl group content are added to the condensation product prior to step (2).