SOLUTION: The alkali developable resin is obtained by adding an acid anhydride to an alternate copolymer of an epoxy compound having one or more epoxy groups in one molecule and a dicarboxylic acid compound having two carboxylic acids in one molecule, wherein the dicarboxylic acid compound is a ...
Simple synthesis of mixed cellulose acylate phosphonates applying n-propyl phosphonic acid anhydride Cellulose mixed esters containing alkylphosphonate and carboxylate groups were prepared homogeneously by a new one-pot method using n-propyl phosphonic aci... T Heinze,SMCV Nagel - 《Cellulose》 被引量...
Method for making anhydride from ester using a palladium-containing catalyst systemMethylene and oxymethylene bis-esters are produced by the reaction of an aliphatic ester of a carboxylic acid, formaldehyde and carbon monoxide in the presence of a catalytic amount of a Group VIII noble transition ...
Adhesive layer being obtained by imidization of a polyamic acid mixture, a reaction product of 3,4,3',4'-biphenyltetracarboxylic anhydride with p-phenylene... A flexible metal foil-polyimide laminate is prepared by joining a polyimide film to a metal foil via an intervening adhesive layer. The...
Maleic Anhydride, Phthalic Anhydride, Methylene Chloride, Calcium Hypochlorite, Adipic Acid, Triacetin, Xanthan Gum,Ascorbic Acid,Our company is located in the oil city, Dongying, and our shareholding factories are located in Shandong, Hebei and Jiang...
1. A process for the preparation of a compound of Formula 1, comprising coupling a carboxylic acid of Formula 2 with an aniline of Formula 3 in the presence of a coupling agent selected from the group consisting of 2-chloro-1,3-dimethyl-2-imidazolium tetrafluoroborate, HBTU, HCTU, 2-chloro...
During a study of the bodying of soybean oil under oxidative conditions it was observed that an increased hydroxyl number was accompanied by an increased diene value. The presumption was made that maleic anhydride had esterified the hydr... William,G.,Bickford,Frank,... - 《Oil & Soap》 被...
(800 g) was slurried into 1200 ml of water. The pH of the slurry was raised to 7.4 with 3% NaOH. While maintaining the pH at 7.3-7.4, three increments of octenyl succinic acid anhydride, 3.3 ml each, were added with agitation 1/2 hour apart. When the reaction no longer consumed ...
Method for forming a catalyst layer including a space in a reaction tube and method for producing unsaturated aldehyde and unsaturated carboxylic acid usin... An object of the present invention is to reduce the temperature of a catalyst bed by dispersing a locally abnormal high temperature part wh...
Alkoxyderivatives of 1-aminonaphthalene-8-carboxylic-acid anhydride and process of making sameSchulte FritzHerz Richard