. . "Preferred examples of the polyorganosiloxane having functionality according to the present invention are of the formula: ##STR4## where R independently is an alkyl having for example from 1 to 24 carbon atoms, and preferably from 1 to 12 carbon atoms; alkenyl having for example from 2 to 24 carbon atoms, and preferably from 1 to 12 carbon atoms; or aryl having for example from 6 to 24 carbon atoms" . .