Siloxane-modified carbamic acid derivatives

Abstract

Abstract NEW ORGANOSILOXANE-MODIFIED CARBAMIC ACID ESTERS COMPRISE AT LEAST ONE STRUCTURAL UNIT OF THE FORMULA (O(3-M/2)-SI(-R'')M-CH(-R")-N(-R"'')-COO-(CNH2N-O)B)C-Q AND OPTIONALLY FURTHER STRUCTURAL UNITS OF THE FORMULA R''A-SI-O/4-A WHEREIN HOWEVER AT LEAT ONE OF EVERY THOUSAND STRUCTURAL UNITS CORRESPONDS TO THE FIRST OF THE ABOVE FORMULAE. IN THESE FORMULAE R'' AND R" ARE MONOVALENT HYDROCARBON RADICALS OF UP TO 10 CARBON ATOMS, R" IS A HYDROGEN ATOM, AMETHYL RADICAL OR A PHENYL RADICAL. Q IS A MONOVALENT TO HEXAVALENT HYDROCARBON RADICAL HAVING UP TO 6 CARBON ATOMS, M IS 0, 1 OR 2, N IS 2, 3 OR 4, A IS 0, 1, 2 OR 3, B IS ZERO OR AN INTEGER FROM 1 TO 200, AND C IS THE VALENCY NUMBER OF Q. THESE CARBAMIC ACID DERIVATIVES ARE PREPARED EITHER BY HYDROLYZING A CORESPONDING, ALKOXYSILY-SUBSTIUTED CARBAMIC ACID ESTER, OPTIONALLY IN ADMIXTURE WITH HYDROCABON-SUBSTITUTED ALKOXYSILANES, OR BY REACTING A CORRESPONDING AMINOMETHYL-SUBSTITUTED POLYSILOXANE WITH A CHLOROFORMIC ACID ESTER OF THE FORMULA (CL-COO-(CNH2N-O)B)C-Q IN THE PRESENCE OF A TERTIARY AMINE. THE PRODUCTS ARE TO BE USED AS PRIMING AGENTS IMPARTING ADHESION TO SYNTHETIC RESINS ON SILICEOUS SURFACES, AS SURFACTANTS AND AS INTERMEDIATES FOR ORGANO-POLYSIOLOXANE RESINS.

Inventors

• 👤 Hans Dietrich Golitz
• 👤 Walter Simmler

Bibliographic Details