摘要:
Vorgeschlagen wird ein Polykondensationsprodukt, umfassend als Monomerkomponenten mindestens einen Arylpolyoxyalkylenether, mindestens eine vicinal disubstituierte aromatische Verbindung, mindestens einen Aldehyd sowie gegebenenfalls weitere aromatische Verbindungen; Verfahren zu deren Herstellung sowie deren Verwendung als Dispergiermittel für wässrige Suspensionen von anorganischen Bindemitteln und als Mahlhilfsmittel für anorganische Bindemittel.
摘要:
The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.
摘要:
Provided is a resin solid acid capable of reducing intermediate stage production costs by omitting the synthetic resin carbonization step and allowing sulfo groups to be introduced directly into the synthetic resin, and a method for producing that resin solid acid. The resin solid acid is a sulfo group-modified resin obtained by introducing sulfo groups into a raw material resin in an uncarbonized state, the yield of the sulfo group-modified resin based on the weight of the uncarbonized raw material resin is 80% or more, the amount of sulfo groups in the sulfo group-modified resin is 1 mmol/g or more, and the raw material resin is in the form of a powder, granules or fibers. In addition, the method for producing the resin solid acid is a production method for obtaining a sulfo group-modified resin by comprising a step for adding a sulfonating agent in the form of any of sulfuric acid, fuming sulfuric acid or chlorosulfonic acid to a raw material resin in an uncarbonized state, and a step for heating the uncarbonized raw material resin at 200°C or lower.
摘要:
The invention relates to a polycondensation product comprising, as monomer components, at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde, and optionally further aromatic compounds. The invention also relates to a method for the preparation thereof, and also to the use thereof as a dispersant for aqueous suspensions of inorganic binders and as grinding auxiliary for inorganic binders.
摘要:
The present invention relates to novel polyamines having secondary amino groups, a process for preparing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available starting materials. 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 as constituent of epoxy resin compositions, in particular coatings.
摘要:
The invention relates to a crosslinker composition comprising a reaction product of a cyclic urea U and a multifunctional aliphatic aldehyde A , and at least one crosslinker selected from the group consisting of reaction products of an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes having the structure Y(CHO) n , where Y is an n-functional aliphatic residue, and n is greater than 1; reaction products of urea and/or cyclic ureas and aliphatic monoaldehydes; alkoxycarbonylaminotriazines; multifunctional isocyanates which may be partially or completely blocked; reaction products of phenols and aliphatic monoaldehydes; multifunctional epoxides; multifunctional aziridines; and multifunctional carbodiimides, wherein any of the crosslinkers which have hydroxyl groups may be etherified with one or more linear, branched, or cyclic aliphatic alcohols.
摘要:
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.
摘要:
This invention relates to a crosslinking composition comprising and organic acid and a compound having the structure of Formula I: A'-N RA-RD where A' is a moiety derived from the group consisting of triazines, linear or cyclic ureas, cyanuric acid, substituted cyanuric acids, linear or cyclic amides, glycolurils, hydantoins, linear or cyclic carbamates and mixtures thereof, or a moiety comprising the structure (II):w here RA is RD, hydrogen, an alkyl of 1 to 20 carbon atoms, or taken together with A' forms a cyclic compound; RD is -CHRcORB, wherein RB is hydrogen, alkyl, aryl, aralkyl or an alkaryl having from 1 to about 24 carbon atoms and Rc is an alkyl, halogenated alkyl, aryl, aralkyl, halogenated aralkyl, alkoxyalkyl or an alkaryl having from 1 to about 24 carbon atoms; A is a moiety derived from the group consisting of linear or cyclic ureas, cyanuric acid, substituted cyanuric acids, linear or cyclic amides, glycolurils, hydantoins, linear or cyclic carbamates and mixtures thereof; B is a residue of a poly(alkylaldehyde) with n aldehyde groups; n is an integer of 2 to about 8; Ra is Rd, hydrogen, an alkyl of 1 to about 20 carbon atoms, or taken together with A forms a cyclic compound; where Rd is CHRcORb or (III) where Rb is hydrogen, alkyl, aryl, aralkyl or an alkaryl having from 1 to about 24 carbon atoms and Rc is an alkyl, halogenated alkyl, aryl, aralkyl, halogenated aralkyl, alkoxyalkyl or an alkaryl having from 1 to about 24 carbon atoms; and where the alkyl or aryl groups in each radical may optionally have heteroatoms in their structure and to a process for producing the crosslinking.