A process for preparing polymeric compounds comprising ionic imidazolium groups (polymeric imidazolium compounds for short) comprising reacting an -dicarbonyl compound, an amino compound having at least two primary amino groups (referred to as oligoamine), a protic acid, less than 1 mol of a compound with only one aldehyde group (referred to as monoaldehyde) per mol of oligoamine and optionally further compounds.

A process for preparing polymeric compounds comprising ionic imidazolium groups (polymeric imidazolium compounds for short) comprising reacting an -dicarbonyl compound, an amino compound having at least two primary amino groups (referred to as oligoamine), a protic acid, less than 1 mol of a compound with only one aldehyde group (referred to as monoaldehyde) per mol of oligoamine and optionally further compounds.

A stabilised aqueous formazin composition comprises 100 parts by weight water; up to 0.03 parts by weight formazin polymer; 0.4 to 5 parts 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 8.4 and 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 4 and 50 g/l and a buffer composition adjusted to a pH of the diluent in a range of from 8.4 to 10.

The present invention relates to a method for preparing a covalent organic framework (COF) materialsa reversible polycondensation/termination method, the COF materials prepared by the method have high crystallinity, high specific surface area, regular and controllable morphology. The present invention also relates to a method for repairing defects of COF materialsreversible degradation-recombination, the method can eliminate defects of existing COF materials, thereby increasing the crystallinity and specific surface area of COF materials and improving their morphological characteristics.

Methods, compounds, and compositions described herein generally relate to polyalkylamines and syntheses thereof. In some embodiments, a chemical compound has the formula: ##STR00001## Each instance of R is independently selected from the group consisting of aryl, alkyl, and polyether. Each instance of R is independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, polyether, and alcohol. Each instance of Q and Z is independently a covalent bond or selected from the group consisting of alkyl and aralkyl.

Methods, compounds, and compositions described herein generally relate to polyalkylamines and syntheses thereof. In some embodiments, a chemical compound has the formula: ##STR00001## Each instance of R is independently selected from the group consisting of aryl, alkyl, and polyether. Each instance of R is independently selected from the group consisting of hydrogen, alkyl, aryl, cycloalkyl, polyether, and alcohol. Each instance of Q and Z is independently a covalent bond or selected from the group consisting of alkyl and aralkyl.

A functionalized ketone-aldehyde condensation resin is produced by condensing a ketone and an aldehyde in the presence of at least one alcohol or alkoxylate thereof, wherein the alcohol comprises amino alcohols and derivatives thereof, hydroxybutyl vinyl ether, OH-functional acrylates, OH-functional terpenes, OH-functional halogen compounds, hydroxycarboxylic acids, sulphur-containing alcohols, hydroxyl-containing urea derivatives, carbohydrates, siloxanes, OH-functional phosphorus compounds or unsaturated alcohols.

A functionalized ketone-aldehyde condensation resin is produced by condensing a ketone and an aldehyde in the presence of at least one alcohol or alkoxylate thereof, wherein the alcohol comprises amino alcohols and derivatives thereof, hydroxybutyl vinyl ether, OH-functional acrylates, OH-functional terpenes, OH-functional halogen compounds, hydroxycarboxylic acids, sulphur-containing alcohols, hydroxyl-containing urea derivatives, carbohydrates, siloxanes, OH-functional phosphorus compounds or unsaturated alcohols.

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an addition product of an amine and a reactant to form an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. 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 composition when applied to fiberglass provides a sufficient blackness required in facer products.

A curable formaldehyde-free binding composition for use with fiberglass is provided. Such curable composition comprises an addition product of an amine and a reactant to form an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. 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 composition when applied to fiberglass provides a sufficient blackness required in facer products.