摘要:
There are disclosed compounds of formulae I and Ia ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.13 alkyl which may be interrupted by oxygen, C.sub.5 -C.sub.6 cycloalkyl or, together with the linking N-atom, are a group of formula ##STR2## R is hydrogen or methyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.13 alkyl, andR.sub.4 and R.sub.5 are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl which may be interrupted by oxygen, C.sub.5 -C.sub.6 cycloalkyl or, together with the linking N-atom, are a group of formula ##STR3## withe proviso that R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen and HNR.sub.1 R.sub.2 are not identical with NR.sub.3 R.sub.4 R.sub.5.The compounds are suitable for use as lubricant additives.
摘要:
Formulation containing A) a lubricant and a mixture of B) for example, at least one of the compounds O,O-bis-2-ethylhexylsodium dithiophosphate, O,O-bis-2-ethylhexylsodium thionophosphate, O,O-bis-2-methylpropylsodium dithiophosphate, O,O-bis-nonylphenylsodium dithiophosphate or S-[O,O-bis-2-ethylhexylthiophosphoryl]-potassium thioglycolate, C) at least one compound from the series of the aromatic amines, for example the diphenylamines or phenothiazines, and D) at least one compound from the series of the cyclic sterically hindered amines, the acyclic sterically hindered amines and the phenols of the formula ##STR1## wherein R.sup.4, R.sup.5 and A are, for example, alkyl radicals. Such lubricant formulations have a high degree of stability towards oxidative degradation.
摘要:
A composition comprising(a) one or more lubricants or hydraulic based on mineral oil or synthetic oils and(b) 0.05 to 5% by weight, relative to the total weight of the lubricant composition or hydraulic oil composition, of a mixture of(1) at least one compound of the formula I or II ##STR1## in which Y, Z, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 as well as a are as defined in patent claim 1 and(2) at least one compound of the formulae III or IV ##STR2## in which X, X.sup.1, X.sup.2, R.sup.11, R.sup.12, m, n, n*, k, b and M are as defined in patent claim 1.
摘要:
There are disclosed compounds of formula I ##STR1## R.sub.1 and R.sub.2 are each independently of the other C.sub.3 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.6 cycloalkylmethyl, C.sub.9 -C.sub.10 bicycloalkylmethyl, C.sub.9 -C.sub.10 tricycloalkylmethyl, phenyl, C.sub.7 -C.sub.6 alkylphenyl or, taken together, are ##STR2## R.sub.3 is hydrogen or methyl, A is ##STR3## R.sub.4 is hydrogen or C.sub.1 -C.sub.6 alkyl, and R.sub.5 is a 5- or 6-membered saturated heterocyclic ring,R.sub.6 is hydrogen or methyl,n is an integer from 1 to 11 and m is an integer from 0 to 4.These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.
摘要:
There are disclosed compounds of formula I wherein R1 and R2 are each independently of the other C3-C18alkyl, C5-C12cycloalkyl, C5-C6cycloalkylmethyl, C9-C10bicycloalkylmethyl, C9-C10tricycloalkylmethyl, phenyl, C7-C24alkylphenyl or, taken together, are R3 is C2-C18alkylene which is interrupted by —O—, —S—, or —NR4—, or is a group of formula R4 is hydrogen, C1-C18alkyl, phenyl-C1-C4alkyl, phenyl or C1-C6alkyl-substituted phenyl, R5 is hydrogen or methyl. These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.
摘要:
Lubricant compositions containing (a) a mineral and/or synthetic base oil and (b) at least one compound of the formula I ##STR1## wherein a is 0 or 1, b is 1 to 6, R is H or alkoxycarbonyl, R.sup.1 and R.sup.2 are independently alkyl, cycloalkyl, aryl, aralkyl or are together substituted alkylene and X is hydroxyl, alkoxy, aryloxy, amino, substituted amino or the residue of a polyol, are described.
摘要:
In order to achieve reproducible vibration excitation of a quartz crystal even under the technical conditions which prevail when it is used for monitoring electroplating baths, a mounting for the quartz crystal 7 is proposed. The mounting for the quartz crystal 7 has two holding elements 3, 6, 14 detachably connected to one another as a form-fit, and at least two contact elements 5, 9 on the holding elements 3, 6, 14 brought into electrical contact with the contacting surfaces 32 of the quartz crystal 7. The quartz crystal 7 is fitted with the holding elements 3, 6, 14 and/or the contact elements 5, 9 at least one of the contact elements 9 being configured as a resilient body. The at least one resilient contact element 9 has an end face 34, 134 for electrically contacting the quartz crystal 7, the size of which face corresponds roughly to the size of the quartz crystal 7.
摘要:
Compounds of formula I ##STR1## wherein R and R.sup.1 are identical or different and are a radical of the formula ##STR2## where R.sup.2, R.sup.3 and R.sup.4 are each independently C.sub.1 -C.sub.18 alkyl and together contain not more than 22 carbon atoms, and R.sup.3 and R.sup.4 are also hydrogen, or wherein R and R.sup.1 are C.sub.5 -C.sub.6 cycloalkyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl, or naphthyl, C.sub.7 -C.sub.14 aralyl, furfuryl or thienyl, and wherein Y is --S--, --O--, --NH--, --N(C.sub.1 -C.sub.12 alkyl)--, --CH.sub.2 --, --CH(C.sub.1 -C.sub.12 alkyl)-- or --C(C.sub.1 -C.sub.12 alkyl).sub.2 -- and X.sup..sym. is 1 equivalent of a metallic cation selected from the group consisting of Li.sup..sym., Na.sup..sym., K.sup..sym., Mg.sup.2.sym., Ca.sup.2.sym., Ba.sup.2.sym., Zn.sup.2.sym., Mn.sup.2.sym., Ni.sup.2.sym., Fe.sup.3.sym., Fe.sup.2.sym., Co.sup.2.sym., Cu.sup.2.sym., Al.sup.3.sym., Cr.sup.3.sym., VO.sup. 3.sym., ZrO.sup.2.sym., MoO.sub.2.sup.2.sym. and TiO.sup.2.sym., are suitable as additives for lubricants and hydraulic oils and bring about an improvement in the extreme-pressure properties and in the anti-wear properties.
摘要:
A can distribution apparatus includes an assembly forming an endless path interconnecting a plurality of distribution locations for support movement of cans to and between distribution locations and an assembly for simultaneously advancing cans of varying degrees of fullness and readiness to a textile machine. The can distribution locations include a textile machine delivery location, a can return location, a full can supply location, and a can receipt location. The advancement of each can is effected simultaneous with the advancement of the other cans in the endless path independent of whether the can is empty, partially loaded or contains a full load and whether the full load is prepared for delivery or not. A detector detects the sliver fullness of each can on the endless path and signals this information to a control device which controls the distribution of cans to the various can distribution locations. A sliver end preparation device prepares full cans for delivery to a textile machine and a detector detects the presence or absence of an end in a preferred position. The control device prevents the distribution of cans having a full load of unprepared sliver to a textile machine in response to a signal from the detector.
摘要:
A method attaches small plastic parts securely in a defined position on compression molded parts consisting substantially of bonded or synthetic resin bound natural fibers or chips. The parts are compression molded into the desired shape in a compression mold from a preformed, loose layer of a mixture of at least one of natural fibers and chips and of binder introduced into the compression mold, while undergoing a setting reaction of the binder and a volume reduction of the layer. During the compression molding operation, at least one clearance or thin portion, smaller than the small plastic part, is formed in the wall of the compression molded part at the fastening point of the small plastic part on the compression molded part. Thereafter, a direct form-fitting injection molding of the small plastic part or parts onto the wall of the compression molded part at the fastening point is carried out. The finished compression molded part is placed in a defined position with the fastening point in a split injection mold for molding on the small plastic part, each mold half of the injection mold coming snugly into contact on the near side and the far side of the wall of the compression molded part. The plastic for forming the small plastic part is injected from one side of a mold half into the injection mold and, within the injection mold, completely fills the clearance of the compression molded part. The plastic reaches the mold half opposite the injection side through the clearance or the thin portion which breaks open under the pressure of the plastic injected therein.