A polymeric composition for friction elements

The polymeric composition for friction elements comprises a co-polymer between (I) a resin containing phenolic groups, (II) an organopolysiloxane resin containing terminal silanol groups. A part at least of the phenolic groups is bound to the terminal silanol groups. A tris neoalkalanate titanate is...

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Hauptverfasser:	TOMOKI NAKAMURA, DURYODHAN MANGARAJ, VASILIOS KANELLOPOULOS, VINCENT DANIEL MCGINNISS, ISABELLE LOUIS-JOSEPH-DOGUE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING BRAKES CHEMISTRY CLUTCHES COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COUPLINGS FOR TRANSMITTING ROTATION DYES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL PROCESSES OF COMPOUNDING HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The polymeric composition for friction elements comprises a co-polymer between (I) a resin containing phenolic groups, (II) an organopolysiloxane resin containing terminal silanol groups. A part at least of the phenolic groups is bound to the terminal silanol groups. A tris neoalkalanate titanate is used as a catalyst for the co-polymerisation reaction A process of the preparation of the polymeric composition comprises the following steps: a) mixing (I) a resin containing the phenolic groups, (II) a resin containing the terminal silanol groups, and (III) a tris neoalkalanate titanate as a catalyst, b) curing the mixture for a period of time sufficient to complete substantially the reaction between the phenolic groups and the terminal silanol groups, c) post-curing the product obtained under b).