Abstract:
A halogen-containing polyether which comprises a repeating unit structure of the formula:--(CH.sub.2 CF.sub.2 CF.sub.2 O).sub.a --(CHClCF.sub.2 CF.sub.2 O).sub.b --(CCl.sub.2 CF.sub.2 CF.sub.2 O).sub.c --(CHFCF.sub.2 CF.sub.2 O).sub.d --(CFClCF.sub.2 CF.sub.2 O).sub.e --(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.f --(I)wherein a, b, c, d, e and f are each 0 or a positive integer and satisfy the following equations:2.ltoreq.a+b+c+d+e+f.ltoreq.200 and 1.ltoreq.a+c+d+fand at least one terminal group selected from the group consisting of groups represented by the formulas:--CH.sub.2 OH, --COOR.sup.1, --CONR.sup.1.sub.2, --COOOR.sup.2 Ph and --R.sup.2 Phwherein R.sup.1 is a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or an aromatic group, R.sup.2 is a divalent organic group and Ph is an aromatic group, which has good lubricating properties.
Abstract:
An electrical insulating oil composition which is characterized in that said insulating oil composition contains 5 to 300 ppm (as sulfur) of sulfur compounds and exerts excellent deterioration resistance when the insulating oil composition is fed through or used in contact with a substance made of lead or a lead alloy.
Abstract:
A phosphoric triester containing at least one aromatic ring is mixed in an amount of 30 to 80% by weight based on the total constituents with a benzenetricarboxylic acid trialkyl ester or with a polyol ester obtained from trimethylolpropane and a saturated fatty acid to give a fire-retardant insulating oil.
Abstract:
The composite self-lubricating material according to the present invention comprises a metal matrix containing functional additives; the matrix is formed by two components, one forming shells of the functional additives, the other being located in the spaces between the shells.
Abstract:
An oligoisobutylcyclohexane of the formula: ##STR1## wherein R.sup.1 -R.sup.5 are identical or different and independently denote hydrogen, a C.sub.1 -C.sub.4 - alkyl group, C.sub.1 -C.sub.4 -alkoxy group or a C.sub.1 -C.sub.4 -alkylthio substitutent and R.sup.6 denotes a branched chain C.sub.12 -C.sub.40 -alkyl group of trimeric to decameric isobutene, a process for preparing such oligoisobutylcyclohexanes and their use as dielectric liquids, lubricants, heat transfer media and the like.
Abstract:
The oxidation of a lubricating oil caused by metal components can be suppressed effectively by adding to the lubricating oil a compound represented by the formula ##STR1##
Abstract:
Acetoacetanilides and related beta-ketoacetanilides are effective antioxidants when used as additives in petroleum products and petroleum-related products. Antioxidant properties are displayed at levels as low as about 0.05 weight percent.
Abstract:
An electrical capacitor is impregnated with a base impregnant of a non-halogenated aromatic liquid which absorbs gas in the range of 40.degree. to 100.degree. to which is added a material that is a greater gas absorber over the same temperature range.
Abstract:
Novel compounds of the general formula: ##STR1## wherein: (a) each R.sup.1 is a hydrocarbyl group, or a group of the formula: ##STR2## and each R.sup.1 may be the same as, or different from, any other group R.sup.1.(b) R.sup.2 is a group as defined for R.sup.1, or a group of the formula:--O(R.sup.5 O).sub.n Si(R.sup.1).sub.3 (iv) and each group R.sup.2 may be the same as, or different from, any other group R.sup.2.(c) each of R.sup.3 and R.sup.4 is independently a group of the formula: ##STR3##--(R.sup.5 O).sub.n --R.sup.6 (vii)(d) R.sup.5 is an alkylene or an arylene group and each R.sup.5 may be the same as, or different from, any other group R.sup.5,(e) R.sup.6 is a hydrocarbyl group of hydrogen and each group R.sup.6 may be the same as, or different from, any other group R.sup.6,(f) n is zero or an integer and each n may be the same as, or different from, any other n.The compounds are useful as water scavengers, particularly for hydraulic fluids, as well as in paints, lubricating oils and electrical oils.
Abstract:
A composition and method for inhibiting damage in a functional fluid by incorporating therein a damage inhibiting amount of an ammonium salt of a phosphorus acid in accordance with the formula: ##STR1## wherein R, R', R", R''' can be the same or different and wherein R and R' can be conjoint and contain oxygen, nitrogen, and mixtures thereof; and represent alkyl, aralkyl, and alkenyl groups containing from 1 to about 30 carbon atoms, X represents oxygen or sulfur, Y' and Y'' represent lower alkoxy, lower thioalkoxy, alkenyloxy, thioalkenyloxy, lower alkyl, carboalkoxyalkyl, phenyl lower alkyl, thiophenoxy, aryloxy, alkaryloxy, aralkoxy and lower alkylthiophenoxy, Z represents oxygen or sulfur, and m equals 1 or 2.