Abstract: The invention relates to materials which are based on organosilicon compounds, are storable with exclusion of water and are crosslinkable to elastomers on ingress of water at room temperature, which comprise organic acids and basic nitrogen or basic phosphorus, to processes for preparation thereof and to moldings produced therefrom.

Abstract: The invention relates to crosslinkable compositions based on organosilicon compounds and having controllable modulus, to a process for their preparation and to their use, said compositions comprising (a) polymers of the formula XnR3-nSi-A-SiR2—(CH2)3NHY??(I) (b) polymers of the structure X1kR53-kSi-A1-SiX1kR53-k??(II) (c) optionally, silanes of the formula R6mSiX24-m??(III) and/or partial hydrolyzates thereof, and (d) optionally, silanes of the formula R4oSiR7pX34-o-p??(IV) and/or partial hydrolyzates thereof, where X, X1 and X3 are OH or a hydrolyzable group, R, R4, R5, and R7 are hydrocarbyl groups, and A is a divalent linking group.

Abstract: Organosilicon compounds having organyloxy groups are prepared by reacting an organosilicon compound (A) having at least one silanol group with a compound (B) containing at least two organyloxy groups in the presence of a component (C) comprising a zinc chelate (C1) and at least one additive (C2) selected from the group consisting of compounds containing basic nitrogen (C21) and alcohols (C22). The products are useful in compositions which crosslink at room temperature.

Abstract: The invention relates to compositions based on organosilicon compounds, crosslinkable by condensation reaction, and having controllable modulus, to their preparation and to their use as sealants. The compositions contain as crosslinker(s) at least one organosiloxane containing units of the formula RdXeSiO(4-d-e)/2 ??(I) where R is preferably a hydrocarbon group and X is a hydrolyzable group, d and e are 0 or small whole numbers, with the proviso that the sum of d+e is ?3, from 3 to 15 units of the formula (I) are present per molecule, at least two X radicals are present per molecule and at least one unit of the formula (I) where d=2 and e=0 is present per molecule.

Abstract: Crosslinkable substances based on organosilicon compounds contain encapsulated biocides which maintain their effectiveness for extended periods.

Abstract: Crosslinkable compositions based on organosilicon compounds contain at least one compound of the formula H(OCH2CH2)n(OCHCH3CH2)p(OCH2CH2)mOH ??(III) and/or a reaction product thereof with hydrolyzable organosilicon compound(s), where n is 0 or an integer from 1 to 30, m is 0 or an integer from 1 to 30, and the sum of n and m is greater than 5, and p is 1, 2, or 3. The compositions have superior application properties as compared to similar compositions without compound III.

Abstract: The invention relates to compositions based on organosilicon compounds, crosslinkable by condensation reaction, and having controllable modulus, to their preparation and to their use as sealants. The compositions contain as crosslinker(s) at least one organosiloxane containing units of the formula RdXeSiO(4-d-e)/2 ??(I) where R is preferably a hydrocarbon group and X is a hydrolyzable group, d and e are 0 or small whole numbers, with the proviso that the sum of d+e is ?3, from 3 to 15 units of the formula (I) are present per molecule, at least two X radicals are present per molecule and at least one unit of the formula (I) where d=2 and e=0 is present per molecule.

Abstract: The invention relates to crosslinkable compositions based on organosilicon compounds and having controllable modulus, to a process for their preparation and to their use, said compositions comprising (a) polymers of the formula XnR3-nSi-A-SiR2—(CH2)3NHY??(I) (b) polymers of the structure X1kR53-kSi-A1-SiX1kR53-k??(II) (c) optionally, silanes of the formula R6mSiX24-m??(III) and/or partial hydrolyzates thereof, and (d) optionally, silanes of the formula R4oSiR7pX34-o-p??(IV) and/or partial hydrolyzates thereof, where X, X1 and X3 are OH or a hydrolyzable group, R, R4, R5, and R7 are hydrocarbyl groups, and A is a divalent linking group.