Silanes and siloxanes containing oxetane groups

专利名称：Silanes and siloxanes containing oxetane

groups

发明人：PLUEDDEMANN EDWIN P.申请号：US29719763申请日：19630724公开号：US3338867A公开日：19670829

摘要：3 - Allyloxymethyl - 3 - ethyl oxetane is prepared by converting the

monallylether of trimethylol propane to its monosulphate ester and reacting this withsodium hydroxide (see Example 1). 3 - Allyloxymethyl - 3 - chloromethyl oxetane and 3,3-bis-(allyloxymethyl) oxetane are prepared by reacting sodium allyloxide with 3,3-bis-(chloromethyl oxetane) (see Example 4).ALSO:The invention comprises silanes andsiloxanes of formula with or without units of formula wherein R is a divalent saturatedaliphatic radical consisting of hydrogen, carbon, and optionally, oxygen, any oxygen in Rbeing present as hydroxy, ether or ester linkages, and R being bonded to the siliconatom through a carbon-silicon bond; R1 is a hydrogen, hydrocarbon, halohydrocarbon, aradical containing an ether linkage, hydroxyalkyl or carboxyalkyl radical; R11 is ahydrocarbon, halohydrocarbon, hydrocarbonoxy or acyloxy radical and is free fromaliphatic unsaturation; and a is 0-3. These compounds may be prepared by the

condensation of (a) and in the presence of platinum to yield (b) and to yield and to yieldor and to yield Siloxanes may also be prepared by the hydrolysis of the correspondingoxetane-containing silanes. The compounds may be cured, e.g. by reaction with BF3 orother Lewis acid. Many examples are given; typical examples describe the preparation of

(1) (7) which was hydrolysed to a siloxane of unit formula and (9a) a siloxane copolymercomprising units of formulae CH3SiO 3/2 , (CH3)2SiO, C6H5SiO 3/2 and Uses.-Protectivecoatings, treating glass cloth for laminates, preparing silicone modified polyetherrubbers, mouldings and films

申请人：DOW CORNING CORPORATION

更多信息请下载全文后查看