摘要:
N-Cyclohexyl-N-methoxyacetoacetamide, its preparation and its use as an intermediate for the preparation of O-methyl-N-cyclohexyl-2,5-dimethylfuran-3-hydroxamic acid.
摘要:
A process for improving the printability of paper and paper products by enhancing the water resistance of ink-jet printed images, wherein the process comprises treating the paper or paper products with aqueous solutions of cationic polymers comprising vinylamine units and having a charge density of at least 3 meq/g as the sole treatment composition in aqueous solution, wherein the sole treatment composition is applied in an amount from 0.05 to 5 g/m2 to the surface of the paper or the surface of the paper product.
摘要翻译:一种通过提高喷墨打印图像的耐水性来改善纸和纸制品的可印刷性的方法,其中该方法包括用包含乙烯胺单元的阳离子聚合物的水溶液处理纸或纸制品,并且具有至少 3meq / g作为水溶液中的唯一处理组合物,其中单一处理组合物以0.05至5g / m 2的量施用于纸或纸产品的表面。
摘要:
Paper coated with a coating slip containing at least one optical brightener is produced by a process in which base paper or precoated paper is treated, before application of the coating slip containing optical brightener, with at least one substance which enhances the efficiency of optical brighteners.
摘要:
The process for the production of crepe paper by adhesive bonding of a paper web with the aid of an adhesive comprising (i) polyethyleneimine having a molar mass Mw of from 50 000 to 2 million, (ii) reaction products of polyethyleneimine having a molar mass Mw of from 500 to 1 million with at least one C14- to C22-alkyldiketene, a monocarboxylic acid, an ester of a monocarboxylic acid or an acid chloride of a monocarboxylic acid and/or (iii) reaction products of polyalkylenepolyamines having a molar mass of from 300 to 1 million with at least one bischlorohydrogen ether or bisglycidyl ether of a polyalkylene glycol having a molecular weight MN of from 300 to 3000 to a creping cylinder, compression and removal of the crepe paper, as well as the use of the adhesives (i) to (iii) as creping assistants.
摘要:
Method for improving the printability of paper and paper products when printing with the aid of the ink-jet printing method by treating the paper or the paper products with aqueous solutions of cationic polymers having a charge density of at least 3 meq/g as the sole treatment composition in aqueous solution, the cationic polymer being applied in an amount of from 0.05 to 5 g/m2 to the surface of the paper or of the paper products, and said cationic polymers are used for improving the ink-jet printability of paper and paper products.
摘要翻译:借助于喷墨印刷方法,通过用电荷密度至少为3meq / g的阳离子聚合物的水溶液处理纸或纸制品来提高纸和纸制品的印刷性的方法, 处理组合物在水溶液中,阳离子聚合物以纸张或纸制品的表面的0.05至5g / m 2的量施加,所述阳离子聚合物用于改进 纸和纸制品的喷墨印刷性。
摘要:
Aqueous pigment slurries which contain up to 80% by weight of a finely divided pigment in dispersed form and from 0.1 to 5% by weight of dispersants which are obtainable by reacting (a) polyalkylenepolyamines, polyamidoamines, polyamidoamines grafted with ethyleneimine, polyetheramines and mixtures of the stated compounds and (b) monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylenically unsaturated carboxylic acids, chlorocarboxylic acids and/or glycidyl compounds and, if required, (c) bifunctional or polyfunctional crosslinking agents which have a halohydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as a functional group, to give water-soluble condensates which, in 20% strength by weight aqueous solution at 20.degree. C., have a viscosity of at least 100 mPa.s are prepared by milling or dispersing pigments in the presence of the dispersants and water and are used as additives to paper stock in the production of filler-containing paper.
摘要:
A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.
摘要:
A process for the preparation of acetanilides by reacting 2-halo-N-halomethylacetanilides with azoles in a two-phase system, in the presence or absence of a phase transfer catalyst.
摘要:
Triazole derivatives of the formula ##STR1## where R denotes benzyl substituted on the phenyl ring by linear or branched alkyl of 1 to 4 carbon atoms, 2-phenylvinyl which is unsubstituted or substituted by halogen on the phenyl ring, 3-phenyl-2-propenyl which is unsubstituted or substituted by halogen on the phenyl ring, 2-phenyl-2-propenyl which is unsubstituted or substituted by halogen on the phenyl ring, 1-phenylethyl, 3-phenylpropyl or 2-phenyl-2-chloroethyl, and salts thereof.Insecticidal agents containing an insecticidal active ingredient selected from the group consisting of carbamates, phosphoric (phosphonic) (di) (thio) acid esters, pyrethrins, pyrethroids, .alpha.-alkylphenyl acetates, .alpha.-cyclopropylphenyl acetates and chlorinated hydrocarbons, and a triazole derivative of the formula I or a salt thereof, have a much stronger insecticidal action than insecticidal agents containing the individual components.
摘要:
Paper, board and cardboard are produced by draining a paper stock in the presence of at least one cationic polymer on a wire by a process in which a mixture of at least one substantially linear, cationic polyelectrolyte and an optical brightener is added to the paper stock before sheet formation, said mixture containing at least two parts by weight of the polyelectrolyte per part by weight of the optical brightener.