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US 5,373,042 AGranted
Molding and sealing compound
AssigneeTeroson GmbH
InventorsGabriele Bride, Gisbert Kern, Wolfgang Lepka, Michael Schatzle
Life of this patent
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Abstract
A one-component moulding and sealing compound based on prepolymers with terminal silyl groups with at least one hydrolyzable substituent on the Si atom, organo-metallic tin compounds as the catalyst and also inorganic fillers containing a polyvinyl chloride and fatty acid amide having thixotropic effect to reduce surface tackiness.
Claims16
A moisture-hardening one-component molding and sealing compound consisting essentially
- (a) a prepolymer containing silyl terminal groups of the following Formula I in the molecule:
- ##STR3## in which R.sup.1 and R.sup.2, independently of each other, represent hydrogen atoms or alkyl, aryl or aralkyl radicals with up to 10 carbon atoms, X represents a hydrolyzable group and a can be 0, 1 or 2,
- (b) a catalyst consisting of an organo-metallic tin compound,
- (c) an inorganic filler,
- (d) from about 1 to about 10% by weight of polyvinyl chloride, and
- (e) from about 0.1 to about 0.5% by weight of a fatty acid amide having thixotropic properties, all weights of (a)-(e) being based on the weight of said compound.
3 more elements
The process of reducing the surface-adhesiveness of a moisture-hardening molding and sealing compound consisting essentially of:
- (a) a prepolymer containing silyl terminal groups of the following Formula I in the molecule:
- ##STR4## in which R.sup.1 and R.sup.2, independently of each other, represent hydrogen atoms or alkyl, aryl or aralkyl radicals with up to 10 carbon atoms, X represents a hydrolyzable group and a can be 0, 1 or 2,
- (b) a catalyst consisting of an organo-metallic tin compound, and
- (c) an inorganic filler, the process comprising adding to said compound
- (d) from about 1 to about 10% by weight of polyvinyl chloride, and
- (e) from about 0.1 to about 0.5% by weight of a fatty acid amide having thixotropic properties, all weights of (a)-(e) being based on the weight of said compound.
3 more elements
Dependencies are inferred from the claim text.