Hydrophobic Dynasylan® diaminofunctional silane is used in adhesives and sealants, and in coatings, to improve the adhesion of amino-reactive resins. Dynasylan® diaminofunctional silane used in coatings, adhesives, & sealants to improve the adhesion of amino-reactive resins. – The Cary Company!. Hydrophobic Dynasylan® diaminofunctional silane is used in adhesives and sealants, and in coatings, to improve the adhesion of amino-reactive resin.
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A method of using the one- or two-component silicone formulation according to claim 6comprising mixing the polymer component A with the hardener component B. The silicone formulation according to the disclosure concerns a one- or two-component formulation, i.
The one- or two-component silicone formulation according to claim 1wherein the polydiorganosiloxane is a hydroxy-terminated polydimethylsiloxane. Exemplary ketoxime residues are dialkylketoxime residues whose alkyl residues have 1 to 6 C atoms. As was previously explained, such polydimethylsiloxanes can be modified by the partial inclusion of other residues such as phenyl instead of methyl.
Unless otherwise indicated, data refers to the weight. In order to determine the pot life the example components were intimately mixed in a weight ratio of 1: The addition of functionalized oligodimethylsiloxanes in accordance with the disclosure delays or prevents the phase separation and the properties of a corresponding silicone formulation remain unchanged. The addition of such additives is a familiar practice for such silicone formulations. The one-or two-component silicone formulations in accordance with the disclosure, for example, in the form of an RTV silicone, are suitable as elastic adhesives or sealants.
A silicone component, comprising: The residues R 4 can stand for phenyl- vinyl or for methyl residues. The one-or two-component silicone formulation can optionally contain even other components such as are customary for a one-or two-component silicone formulation.
The reaction between the functional residue of the polydiorganosiloxane and of the functional residue of the cross-linker can take place by a condensation reaction. Suitable terminal functional residues are those used in the art. According to another aspect, a silicone component is provided, comprising:. A one- or two-component silicone formulation, comprising: The adhesive remaining after the drawing-off of the silicone on the base is evaluated cohesion break.
For example, a first condensation of two tetramethoxysilane molecules results in a dimer that contains six functional residues; the linking is formed from a functional residue of each molecule by condensation. You may choose a language below to continue to this industry or close this dialog above. Such additional components are, e. In a two-component system, the additives can be added to one or to both components. It is understandable that the degree of condensation, for example, in the case of rather high degrees of condensation, is frequently only an average value.
Reference is made to the previously described exemplary ketoxime residues as examples of oxime residues. The functionalizing residue can be a non-hydrolysable residue. The viscosities indicated here and in the following can be determined in accordance with DIN The one- or two-component silicone formulation according to claim 1wherein the functionalized oligodimethylsiloxane is an oligodimethylsiloxane that comprises terminally or laterally at least one functionalizing residue bound to an Si atom, which residue comprises at least one functionalizing residue selected from mercapto, glycidoxy, amino, amido, methacrylato, carbamato, isocyanato, or polyalkylene glycol.
Self-adhering polyorganosiloxane elastomer compositions and method for preparing same.
Concrete examples for the functionalizing residue, that is bound to an Si atom of oligodimethylsiloxane, are 3-aminopropyl, 2-aminoethylaminopropyl, 2-aminoethylaminoethylaminopropyl, EO-alkyl polyethylene glycolalkyl, e.
Furthermore, the following is true: The one- or two-component silicone formulation dynqsylan to claim 1wherein the degree of condensation of the functionalized oligodimethylsiloxane is in the range vynasylan 10 to The storage was halted after 6 months when no phase separation was able to be observed up to then. The index m can be selected in such a manner that the polydiorganosiloxane has the viscosity indicated in the following.
EP-A describes the use of a condensation product of functional oligosiloxanes as primers for the adhesion buildup for example of polyurethane-based adhesive substances and sealing substances on substrates.
Curable polymer composition and method for preparing curable polymer composition. The one- or two-component silicone formulation according to claim 1wherein the functionalized oligodimethylsiloxane is contained in an amount of 0. R 2 is independently of each other alkyl, hydroxy, alkoxy, alkyldimethylsilyloxy, alkylmethylalkoxysilyloxy or alkyldialkoxysilyloxy.
EP-A refers to the production of aqueous silane polymers in which the functional silanes are used as stabilizers. The functionalized oligodimethylsiloxane comprises at least one terminal or side functionalizing residue. Monomeric silane cross-linkers are in general silane compounds containing two or more, e. The silicone formulation can optionally comprise one or more fillers with which, e.
The adhesion was determined by a subsequent peeling test. Two-component silicone formulations are condensation-cross-linking RTV 2 systems and addition-cross-linking RTV 2 systems, wherein according to the disclosure, condensation-cross-linking two-component silicone formulations are exemplary as two-component dynqsylan.
USA1 – Silicone formulation with improved storage stability – Google Patents
Two dynassylan fast-curing-RTV adhesive sealant suitable for low-ratio packaging. According to one aspect, a one- or two-component silicone formulation is provided, comprising:. What is claimed is: The polymer component used for the test has the following composition:. The content of such third party sites is not within our control, and we cannot and will not take responsibility for the information or content.