Patent ID: 6013740
Filing Date: 2000-01-11
Classification: C08G

Abstract:
A method of making a polysiloxane sheet or tube polymer comprising contacting a sheet or tube silicate with an halogen endblocked halosiloxane, in the presence of a polar solvent or combination of polar and non-polar solvent; and heating the mixture until a polysiloxane sheet or tube polymer is formed having pendant siloxane groups; the halogen endblocked halosiloxane having the formula ##STR3## where X represents chlorine, fluorine, bromine, or iodine; R1 to R7 are alkyl groups containing 1-6 carbon atoms, aryl groups, alkaryl groups, or aralkyl groups; with the proviso that one of the groups R1, R4, and R5 can represent X; and n is an integer having a value of 2 to about 20.