Abstract:
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.
Abstract:
Mehrschichtiger lignocellulosehaltiger Formkörper aus A) einer Mittelschicht oder mehreren Mittelschichten, enthaltend lignocellulosehaltige Partikel, welche erhältlich ist/sind durch Verwendung eines Bindemittels (a) und B) einer Deckschicht oder mehreren Deckschichten, enthaltend lignocellulosehaltige Partikel, welche erhältlich ist/sind durch Verwendung eines Bindemittels (b), wobei das Bindemittel (a) ausgewählt wird aus der Gruppe bestehend aus (a1) Formaldehydharzen und (a2) einem organischen Isocyanat mit mindestens zwei Isocyanatgruppen; wobei das Bindemittel (b) folgende Komponenten enthält reine wässrige Komponente (I) enthaltend (i) ein Polymer A, welches aus folgenden Monomeren aufgebaut ist: a) 70 bis 100 Gew. -% wenigstens einer ethylenisch ungesättigten Mono - und/oder Dicarbonsäure (Monomer (e) A1) und b) 0 bis 30 Gew. -% wenigstens eines weiteren ethylenisch ungesättigten Monomeren, welches sich von den Monomeren AI unterscheidet (Monomer (e) A2), gegebenenfalls (ii) einen niedermolekularen Vernetzer mit mindestens zwei funktionellen Gruppen welche ausgewählt sind aus der Gruppe Hydroxy, Carbonsäure und deren Derivate, primäres, sekundäres und tertiäres Amin, Epoxy, Aldehyd, ein organisches Isocyanat mit mindestens zwei Isocyanatgruppen als Komponente (II) und gegebenenfalls eine Komponente (III) als wässrige Dispersion, enthaltend ein oder mehrere Polymer (e) M, welche (s) aus folgenden Monomeren aufgebaut sind: a) 0 bis 50 Gew. -% wenigstens eines ethylenisch ungesättigten Monomeren, welches wenigstens eine Epoxid- und/oder wenigstens eine Hydroxyalkylgruppe enthält (Monomere) M1), und b) 50 bis 100 Gew. -% wenigstens eines weiteren ethylenisch ungesättigten Monomeren, welches sich von den Monomeren Ml unterscheidet (Monomer (e) M2) sowie gegebenenfalls übliche Additive als Komponente (IV), und gegebenenfalls einen Formaldehydfänger.
Abstract:
A stabilised aqueous formazin composition comprises 100 parts by weight water; up to 0.03 parts by weight formazin polymer; 0.4to 5parts by weight hexamethylenetetramine;and a buffer composition, wherein the buffer composition is adjusted to maintain a pH of the formazin solution in a range between 8.4and 10. The stabilised formazin composition has a turbidity of 400 NTU or less.A diluent for preparing the stabilised formazin composition from a formazin stock composition is provided, wherein the diluent comprises hexamethylenetetramine in a concentration of between 4and 50 g/l and a buffer composition adjusted to a pH of the diluent in a range of from 8.4to 10.
Abstract:
Disclosed herein are compositions and methods of making novel covalently cross-linked polyimines that non-malleable under standard conditions but yet may be rendered malleable.
Abstract:
The present invention relates to a composition comprising an aromatic compound having high heat- and chemical-resistance and a method for preparing a protective thin film using same. The protective thin film prepared from the inventive composition is capable of maintaining its physical shape with no thermal deformation even when exposed to high heat of 300C or greater, shows excellent chemical resistance against an acid, a base or an organic solvent, and maintains the shape of an exposed surface during plasma treatment, thereby effectively functioning as a protective thin film for the protection of an underlying material.
Abstract:
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.
Abstract:
A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an aldehyde or ketone and an amine salt of an inorganic acid. The composition when applied to fiberglass is cured to form a water- insoluble binder which exhibits good adhesion to glass. In a preferred embodiment the fiberglass is in the form of building insulation or reinforcement for a roofing membrane. In other embodiments the product is a microglass-based substrate for use in a printed circuit board, battery separator, filter stock, or reinforcement scrim.
Abstract:
Disclosed herein are compositions and methods of making novel covalently cross-linked polyimines that non-malleable under standard conditions but yet may be rendered malleable.
Abstract:
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 formaldehyde; alkoxycarbonyl- aminotriazines; 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.