摘要:
The liquid-crystalline organosiloxanes which contain dianhydrohexitol derivatives as chiral groups can be used in optical elements, for decorative purposes and as polarizing colored filters, in particular notch filters.
摘要:
Alkoxysilylmethyl isocyanurates are prepared in high space time yield by reaction of a chloromethylalkoxysilane with a metal isocyanate in the presence of a tetrakis[hydrocarbon]ammonium phase transfer catalyst, with minimal formation of byproducts.
摘要:
Silicone-containing polyurethane foams prepared from isocyanate-containing organosilicon compounds and expandable graphite are flame retardant without displaying liquifaction of the polymer component when the foam is exposed to high temperatures.