专利名称：PVB Film for Composite Safety Glass and
Composite Safety Glass
发明人：Uwe KELLER申请号：US10492307申请日：20021010
公开号：US20050256258A1公开日：20051117
摘要：Composite glass with films based on partially acetalated polyvinyl alcoholcontaining a softening agent, especially PVB based, as an intermediate layer withmagnesium salts or calcium salts of organic acids as an adhesion-reducing additive (anti-adhesive agent) exhibit large amounts of fluctions with regard to adhesion when thecomposite glass is subjected to thermal stress. According to the invention, phosphorouscompounds are used, selected from the group consisting of organophosphites i.e. estersof phosphorinic acid with organic radicals, organophosphates, i.e. esters of
orthonophosphoric acid, as an additive which during further processing compensates forfluctations in adhesion in films based on partially acetalated polyvinyl alcohol containinga softening agent. The invention is used in the production of films for the manufacture ofsafety glass, especially used in the building and automotive industry.
申请人：Uwe KELLER
地址：Siegburg DE
国籍：DE
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