ROOM TEMPERATURE VULCANISABLE SILICONE COMPOSITIONS

A silicone elastomer composition which is generally storage stable, and cures to an elastomeric body, comprising; (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups; (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reac...

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Bibliographische Detailangaben
Hauptverfasser:	SEITZ, Aaron, REPOLLET-PEDROSA, Milton H, NESBITT, Rochelle, GORDON, Glenn
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES BUILDING CEILINGS 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 FIXED CONSTRUCTIONS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR FLOORS GENERAL BUILDING CONSTRUCTIONS GUTTERS INKS INSULATION OR OTHER PROTECTION OF BUILDINGS LAUNDERING 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 POLISHES ROOF COVERINGS ROOF-WORKING TOOLS ROOFS SKY-LIGHTS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL WALLS, e.g. PARTITIONS WOODSTAINS
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Beschreibung
Zusammenfassung:	A silicone elastomer composition which is generally storage stable, and cures to an elastomeric body, comprising; (i) an organopolysiloxane polymer having at least two hydroxyl or hydrolysable groups; (ii) a siloxane and/or silane cross-linker having at least three groups per molecule which are reactable with the hydroxyl or hydrolysable groups in the organopolysiloxane polymer (i); (iii) a solid organosilicate resin which is substantially unreactive with components (i) and (ii) and comprising R32SiO1/2 and SiO4/2 siloxane units, wherein the molar ratio of the R32SiO1/2 siloxane units to SiO4/2 siloxane units is from 0.5:1 to 1.2:1, and R2 is selected from hydrocarbon groups; and optionally (iv) a suitable condensation cure catalyst. The solid organosilicate resin (iii) is generally utilised to create a low modulus room temperature vulcanisable (RTV) silicone composition which when cured may be used as a coating, an adhesive or a sealant having high movement capability.