摘要:
Process for the production of leather using products obtainable by reacting (A) at least one cyclic organic carbonate with (B) at least one compound having at least two nucleophilic groups per molecule, selected from sulfonic acid, hydroxyl, primary or secondary amino or mercapto groups.
摘要:
An epichlorohydrinamine polymer has a ratio of amine units to epichlorohydrin units of from 0.8:1.2 to 1.0:1.0, dimethylaminopropylamine and benzylamine preferably being used as amine and/or ammonium units. The novel epichlorohydrinamine polymer is used, for example, for the surface treatment of semifinished leather products and textile materials.
摘要:
A process for the preparation of aqueous formulations, and aqueous formulations so prepared, the process comprising heating at least one cyclic compound of the formula I in the presence of water and of an acidic catalyst and, during or after the heating, H—X—R3 is at least partially separated off, where, in formula I, X is selected from oxygen, sulfur and N—R6, R1-R6 are as defined, and n is an integer from 1 to 4.
摘要:
The invention relates to a condensation product obtainable by reaction of a1) at least one aromatic or heteroaromatic, where the aromatic or heteroaromatic is substituted by at least one hydroxyl group (—OH) and at least one carboxyl group (—COOH), and where the hydroxyl and/or carboxyl group can be present in salt form, a2) at least one carbonyl compound, a3) optionally at least one sulfonating agent a4) optionally at least one urea derivative, and a5) optionally at least one further aromatic or heteroaromatic, or a physiologically tolerable salt thereof, with the precondition that the component a1) is not salicylic acid or sulfosalicylic acid if the component a4) is melamine.
摘要:
The present invention relates to the use of a tanning agent in or on filters, in particular natural or synthetic fibrous fabric or foams, for the avoidance of infections, these filters in particular being part of respiratory protection masks or respiratory protection apparatuses.
摘要:
Adducts are obtained by reacting carbonyl compounds of the formula I where R1 and R2 are as defined, with cyclic compounds of the formula II where X is selected from oxygen, sulfur and N—R8, R3-R8 are as defined, and n is an integer from 1 to 4, which adducts are useful as tanning agents and preservatives.
摘要:
A process is described for preparing alkoxycarbonylaminotriazines by reacting di- or triaminotriazines with dimethyl carbonate in the presence of an alcohol and of an alkali metal or alkaline earth metal methoxide base.
摘要:
In a process for preparing alkoxycarbonylaminotriazines, di- or triaminotriazines are reacted with cyclic carbonic esters and optionally with minor amounts of acyclic carbonic esters in the presence of an alcohol and of an alkali metal alkoxide or alkaline earth metal alkoxide as a base.
摘要:
A process is described for preparing alkoxycarbonylaminotriazines by reacting di- or triaminotriazines with dimethyl carbonate in the presence of an alcohol and of an alkali metal or alkaline earth metal methoxide base.