CATALYST FOR THE CROSS-LINKING OF SILICON RUBBERS

• Main Authors: LIPPSTREU, JÖRG, BART, KARLRISTIAN, KNOTT, THOMAS, EDERER, THEODOR, PICHL, ULRICH, SCHMIDT, GERHARD
• Format: Patent
• Language: English; Polish
• Published: 18.05.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

Catalyst for crosslinking silicone rubber masses with a crosslinking agent based on a silane compound having lactate groups, comprises at least two different compounds comprising metal salts of carboxylic acids. Independent claims are also included for: (1) a composition comprising the above catalyst, at least one organosilicon compound and at least one crosslinking agent based on a silane compound having lactate groups, preferably a silane compound having ethyl lactate groups; and (2) preparing the composition, comprising (i) mixing and reacting the organosilicon compound and the crosslinking agent with the addition of a first catalyst which comprises an acidic compound, preferably 2-ethylhexyl phosphate, before mixing the composition with the catalyst.