Novel siloxane compositions

Claim 1

A STABLE, STORABLE COMPOSITION COMPRISING (A) THE REACTION PRODUCT OF (1) AN ESSENTIALLY DIORGANOPOLYSILOXANE HAVING A VISCOSITY OF AT LEAST 100 CS. AT 25*C., IN WHICH SILOXANE THE TERMINAL RADICALS ARE IN PART HYDROXYL RADICALS AND IN PART TRIORGANOSILOXANE RADICALS SUCH THAT MORE THAN HALF OF THE SAID TERMINAL RADICALS ARE HYDROXYL RADICALS, THE ORGANIC RADICALS OF THE SAID SILOXANE AND SAID TRIORGANOSILOXANE RADICALS EACH BEING SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND MONOVALENT HALOHYDROCARBON RADICALS, AND SAID DIORGANOPOLYSILOXANE BEING A MIXTURE CONSISTING ESSENTIALLY OF A HYDROXYL ENDBLOCKED DIORGANOPOLYSILOXANE AND A DIORGANOPOLYSILOXANE BEING EMDBLOCKED ON ONE END WITH A TRIORGANOSILOXANE GROUP AND ON THE OTHER END BY A HYDROXYL GROUP, AND (2) AT LEAST ONE MOL PER MOL OF SILICON-BONDED HYDROXYL RADICALS OF POLYSILOXANE (1) OF A SILANE OF THE FORMULA (R-)N-SI(-OOC-R'')(4-N) WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND MONOVALENT HALOHYDROCARBON RADICALS, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS AND N HAS A VALUE FROM 0 TO 1 INCLUSIVE, WHICH REACTION PRODUCT IS STABLE IN THE ABSENCE OF MOISTURE, AND WHICH, UPON EXPOSURE TO MOISTURE, CURES TO A COHERENT, RUBBERY SOLID AND (B) A FILLER.