ORGANOPOLYSILOXANE, PREPARATION THEREOF, INTERMEDIATE FOR PREPARING ORGANIC-MODIFIED SILICONE DERIVATIVE COMPRISING THE SAME, PAINT, PRINTING INK ADDITIVE, AND COATING

• Main Authors: JOSTEN WOLFGANG DR, STADTMUELLER STEFAN DR, SPRATTE WERNER DR, SILBER STEFAN DR, REUSMANN GERHARD DR, LANGENHAGEN ROLF-DIETER, FELDMANN-KRANE GEORG
• Format: Patent
• Language: English
• Published: 03.03.1998
• Edition: 6
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To obtain an organopolysiloxane which is suitable for an antifouling coating by adding a specified hydrogen-functional siloxane to a specified alkanediol monovinyl ether in the presence of a conventional hydrosilylation catalyst. SOLUTION: A hydrogen-functional siloxane represented by formula I (wherein R represents an aliph. or arom. hydrocarbon group; R represent H; R is as defined above in connection with R and R ; a is 1 to 50; and b is 0 to 500) is added to an alkanediol monovinyl ether represented by formula II (wherein R and R represent each H, or 12 C or lower branched or unbranched alkyl; and x is 2 to 11) in the presence of a hydrosilylation catalyst (a platinum catalyst or a rhodium catalyst) known per se to obtain an organopolysiloxane represented by formula III (wherein R represents a group represented by formula IV; and the other symbols are as defined above). This organopolysiloxane is suitable for an antifouling coating and can maintain the antifouling effect for a long period of time. The compd. can be prepd. by simply mixing the organopolysiloxane into a coating agent, which will exhibit an antifouling effect, under stirring.