摘要:
A dispersant for aqueous mill-bases obtainable by reacting a polyethylene glycol with a molar excess of a hydroxycarboxylic acid containing from 4 to 17 carbon atoms or lactone thereof and/or with a C3-4-alkylene oxide to form a polymeric diol and phosphating the diol. The preferred hydroxycarboxylic acid or lactone is ε-caprolactone.
摘要:
A novel gasoline-soluble reaction product, a concentrate comprising the reaction product dissolved in a hydrocarbon solvent, and a haze-free, deposit resistant and ORI-inhibited motor fuel composition comprising the reaction product is described. The reaction product is obtained by reacting a dibasic acid anhydride, a novel diamine containing block copolymers with polyoxyalkylene backbones, and a hydrocarbyl polyamine. Motor fuel compositions containing the reaction product additive of the instant invention are haze-free and show improved deposit-resistance and ORI control in comparison with motor fuels without the reaction product. Motor fuel compositions of the instant invention may optionally comprise a polyolefin polymer/copolymer component having a molecular weight range of about 500-3500.
摘要:
On décrit des succinimides N-substitués contenant une chaîne oxyalcoylène, résultant de la réaction de l'anhydride maléique avec un alcool oxyalcoylé R' (-0 A ) n OH, où R' est un radical aliphatique de 12 à 25 atomes de carbone, A un radical alkylène de 2 à 4 atomes de carbone et n un nombre entier de 1 à 50 ; le produit résultant étant mis à réagir avec une amine monoprimaire R 2 (-X-B-) m NH 2 , où R 2 est un radical aliphatique de8 à 25 atomes de carbone, B un radical alkylène défini comme A, X est un groupe -NH- ou un atome -0- et m est un nombre entier de 0 à 4; ou avec une amine biprimaire H 2 N-( B-NH) p H où B est défini comme ci-dessus et p est un nombre entier de 2 à 6. Ces produits sont utilisables comme additifs multifonctionnels pour les carburants.
摘要:
The invention relates to a method for producing monoethylenically unsaturated closed alkyl polyalkylene glycols, said polyalkylene glycols obtained according to said method and to the use thereof.
摘要:
The disclosure relates to biodegradable polyether network polymers crosslinked via ester linkages, to substrates, implants and scaffolds comprising the biodegradable polyether network polymers, to methods for preparing such network polymers, implants and scaffolds, and to methods of using substrates, implants and scaffolds comprising the network polymers, particularly for culturing cells and regenerating tissue.
摘要:
To provide a fluorinated compound capable of imparting excellent antifouling properties (oily ink repellency, fingerprint stain removability) and lubricity to e.g. a hard coat layer, a hard coat layer-forming composition which contains such a fluorinated compound, and an article having a hard coat layer formed from such a composition. A fluorinated compound represented by D 1 -R f1 -O-CH 2 -(C m F 2m O) n -A (wherein D 1 is CF 3 - or CF 3 -O-, R f1 is a C 1-20 fluoroalkylene group containing at least one hydrogen atom, a C 2-20 fluoroalkylene group containing at least one hydrogen atom and having an etheric oxygen atom between carbon-carbon atoms, etc., m is an integer of from 1 to 6, n is an integer of from 1 to 200, and A is a monovalent organic group having at least one (meth)acryloyl group), a hard coat layer-forming composition which contains such a fluorinated compound, and an article having a hard coat layer formed from such a composition.