摘要:
Elements having a support with lubricant on both sides can be treated to remove substantially all of the lubricant from one side only. Various chemical, mechanical and electrical treatments are contemplated, but glow discharge treatment is particularly useful. Photographic film supports having one or more layers applied thereto can be treated in this manner before or after annealing so that lubricant present on the treated side does not reduce adhesion of later applied silver halide emulsion layers.
摘要:
This invention relates to compositions containing a sulfur containing antiwear/extreme pressure agent, basic nitrogen compound or a mixture thereof together with a hydrocarbyl mercaptan. The composition may additionally contain a phosphorus or boron antiwear or extreme pressure agent, a dispersant or an overbased metal salt. The invention also relates to lubricants, functional fluids, and concentrates containing the same. Seals, e.g. nitrile, polyacrylate, and fluoroelastomer, in contact with these composition have reduced deterioration. With the use of these compositions, lubricants, and functional fluids, the seals' useful life is extended.
摘要:
PCT No. PCT/SE93/01060 Sec. 371 Date Jul. 25, 1995 Sec. 102(e) Date Jul. 25, 1995 PCT Filed Dec. 8, 1993 PCT Pub. No. WO94/13765 PCT Pub. Date Jun. 23, 1994Secondary amines having the formula (I): R(Y)sNHX, in which R is a hydrocarbon group having 2-12 carbon atoms, Y is the group -CH(OH)CH2-, -OCH2CH(OH)CH2- or -O(CH2)3, X is an alkyl group having 2-3 carbon atoms and substituted with hydroxyl groups in the 2-position or in the 2 - and 3-positions, and s is 0 or 1 with the condition that when s is 0, then X is an alkyl group substituted in the 2- and 3-positions, or a salt thereof, are used as anticorrosion and antimicrobial agents. They are suitable to be incorporated in aqueous, alkaline, industrial fluids. An aqueous, alkaline metal working fluid is also disclosed.
摘要:
An additive for improving the cold flow properties of crude oil, lubricating oil or fuel oil comprises one or more oil-soluble copolymers of ethylene and an unsaturated monomer of general formula (I), wherein R6 is hydrogen or methyl, R5 is a -OOCR8 group wherein R8 is a hydrogen formate or a C1 to C28, more usually C1 to C17, and preferably a C1 to C8, straight or branched chain alkyl group, or R5 is a -COOR8 group wherein R8 is as defined above but is not hydrogen, and R7 is hydrogen or -COOR8 as defined above, and wherein (i) where there is more than one copolymer, the arithmetic mean of the content of said unsaturated monomer in the copolymers is below 11 mole %, or (ii) where there is one copolymer, the content of said unsaturated monomer in the copolymer is in the range of 6.5 to 10 mole %.
摘要:
An organophilic clay thickener for natural oil systems comprising the reaction product of a smectite-type clay and an organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite-type clay. Said organophilic clay comprising at least one naturally occurring, resulting in increased efficiency as a thickener in natural oil systems.
摘要:
Synergistic combinations of iodopropargyl compounds and hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine for use in controlling the growth of microorganisms, such as fungi and bacteria, in aqueous fluids, such as metalworking fluids.
摘要:
Des copolymérisats d'émulsion aqueux de (méth)acrylates d'alcools à chaîne longue en phase aqueuse fermée contiennent, sous forme de phase dispersée stable au stockage, des copolymérisats des constituants monomères suivants: au moins 50 % en poids, de préférence au moins 60 % en poids de (méth)acrylates d'alcools C16-30; 0 à 25 % en poids, de préférence 5 à 10 % en poids de (méth)acrylates d'alcools avec 8 atomes de carbone au maximum et 0,5 à 40 % en poids, de préférence environ 1 à 25 % en poids d'acides mono- et/ou dicarboxyliques oléfiniquement insaturés ou leurs anhydrides avec au total jusqu'à 10 atomes de C. Est également décrit l'emploi de ces copolymérisats d'émulsion aqueux pour abaisser le point de congélation ou d'écoulement de mélanges d'hydrocarbures, notamment de pétrole brut ou de fractions pétrolières, dans lesquels les copolymérisats précités se présentent, à titre de phase dispersée de copolymérisats d'émulsion aqueux, sous forme très concentrée et néanmoins très mobile en vue de l'incorporation dans des mélanges d'hydrocarbures du type précité.
摘要:
Lubricating oil compositions for internal combustion engines are described with comprise (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) acylating agent of at least one amine compound characterized by the presence within its structure of at least one NH