A method of stabilizing imino-functional silane involving adding thereto at least one Brønsted-Lowry base to inhibit, suppress or prevent the addition reactions of the imino-functional silane with itself to form a imino- and amino-functional silane and the subsequent deamination reactions to form conjugated carbon-carbon double bond-containing imino-functional silanes and stabilized imino-functional silanes containing the at least one Brønsted-Lowry base.
The present disclosure invention relates to novel secondary aminosilanes, a method for producing same, and the use thereof. The secondary aminosilanes can be produced from readily available reactants in a simple manner. The secondary aminosilanes are characterized for example by a low viscosity and are well suited for producing silane-functional polymers that have a low viscosity, fast curing, and good thermal stability.
POLYAMINES HAVING SECONDARY ALIPHATIC AMINO GROUPS
申请人:Butikofer Pierre-Andre
公开号:US20130261270A1
公开(公告)日:2013-10-03
The present invention relates to novel polyamines having secondary amino groups, a process for producing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available reactants. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also constituent of epoxy resin compositions, especially coatings.
The present invention concerns low-odor, low-viscosity hardeners for epoxy resins, including an amine with at least one amino group of formula (I) and an amine with at least one amino group of formula (II), wherein the amino groups of formulas (I) and (II) are present in a particular ratio.
These hardeners harden quickly with epoxy resins and without blushing to form films of high hardness and good resistance. They are especially suitable for low-emission coatings.
Polyamine mit sekundären aliphatischen Aminogruppen
申请人:Sika Technology AG
公开号:EP2465843A1
公开(公告)日:2012-06-20
Die vorliegende Erfindung betrifft neuartige Polyamine mit sekundären Aminogruppen, ein Verfahren zu deren Herstellung, Addukte dieser Polyamine und deren Verwendungen. Die Polyamine lassen sich auf einfache Art und Weise aus leicht zugänglichen Edukten herstellen. Sie und ihre Addukte zeichnen sich insbesondere durch eine niedrige Viskosität aus und sind geeignet als Bestandteil von Polyurethan- und Polyharnstoff-Zusammensetzungen mit ausgezeichneter Verarbeitbarkeit und hoher Flexibilität, sowie als Bestandteil von Epoxidharz-Zusammensetzungen, insbesondere Beschichtungen.