According to a first aspect, an ester oil, in particular for producing a hydraulic fluid and/or a lubricant, containing an esterification product from the esterification of at least one monoalcohol with at least one polycarboxylic acid, is characterized in that the monoalcohol and/or the polycarboxylic acid originates from renewable raw materials. According to a second aspect, an ester oil, in particular for producing a hydraulic fluid and/or a lubricant, containing an esterification product from the esterificati-on of at least one monocarboxylic acid with at least one dialcohol, is characterized in that the dialcohol and/or the monocarboxylic acid originates from renewable raw materials.
The production of highly basic calcium sulphonates.
申请人:EXXON RESEARCH AND ENGINEERING COMPANY
公开号:EP0000264A1
公开(公告)日:1979-01-10
Highly basic Calcium Sulphonate with improved solubile ity in heavy paraffinic oils and improved filterability is prepared by carbonating a mixture of sulphonic acid, calcium hydroxide, water, alcohol and solvent at a temperature from 20°C to 35°C and using a stoichiometric excess of calcium hydroxide and a specified amount of water.
Production of overbased calcium sulphonate, product thus obtained and lubricating oil containing it
申请人:EXXON RESEARCH AND ENGINEERING COMPANY
公开号:EP0025328A1
公开(公告)日:1981-03-18
The solubility of Overbased Calcium Sulphonate in based oils is improved by controlling water content and extent of carbonation to minimise the formation of crystalline material so resulting in lower sediment and improved filtration.
Elément de correction par soulèvement de caractères imprimés
申请人:International Business Machines
Corporation
公开号:EP0032539A2
公开(公告)日:1981-07-29
Le matériau adhésif pour correction contient de 15 à 35% en poids de polyéthylène, de 20 à 65% en poids d'un agent collant, de 7 à 25% en poids d'un polymère isobutylène, de 10 à 20% en poids d'un copolymère d'éthylène et/ou de propylène et d'un ester monoéthyléniquement non saturé, le copolymère contenant de 18 à 40% en poids d'ester monoéthyléniquement non saturé, et de 0,5 à 5% en poids d'un acide carboxylique et/ou d'un ester de celui-ci. Ce matériau peut être utilisé sur un ruban dans une machine à écrire pour enlever les caractères imprimés par erreur sur un papier sans provoquer l'arrachement des fibres du papier ou affecter ces opérations d'avancement ou de manipulation.
In producing basic Calcium Sulphonate by carbonating mixtures of sulphonic acids, calcium hydroxide, alcohols and toluene the use of a narrowly defined temperature profile during carbonation enables product of improved oil solubility and viscosity to be obtained as well as leading to improved filterability.