OXYALKYLATED POLYSILOXANES, THEIR PREPARATION AND THEIR USE AS HEAT SENSITISERS

摘要

1. Hydroxyalkylated polysiloxanes of the general formula see diagramm : EP0002519,P10,F1 in which R1 , R2 and R3 denote, independently of each other, an alkyl and aryl radical with 1 to 10 C atoms, optionally substituted by halogen, R4 represents hydrogen or an alkyl or aryl radical with 1 to 10 C atoms, optionally substituted by halogen, n represents a number from 1 to 50 and m represents a number from 0 to 50 and X represents the radical see diagramm : EP0002519,P10,F2 P denotes a number from 1 to 8 and q denotes zero or the number 1, Y represents see diagramm : EP0002519,P10,F3 R5 represents an alkyl radical of a lower alcohol, x and y denotes the numbers 5 to 100, characterized in that the radical see diagramm : EP0002519,P10,F4 is able to be prepared by the reaction of a lower alcohol R5 OH first of all with a mixture of propylene oxide and 80-90 % of the total quantity of the ethylene oxide and then with the remaining 10-20 % of the ethylene oxide.