摘要:
The present invention relates to bis-oxazolidines corresponding to formula (II) ##STR1## wherein R represents a branched, saturated, aliphatic hydrocarbon radical containing 5 to 8 carbon atoms.The present invention also relates to oxazolidine mixtures, which are also suitable as hardeners for plastics precursors containing isocyanate groups, consisting essentially ofa) bis-oxazolidines corresponding to formula (II) above andb) 0.03 to 0.3 moles per mole of component (a), of compounds corresponding to formula (III) ##STR2## wherein R represents a saturated, branched, aliphatic hydrocarbon radical containing 5 to 8 carbon atoms.The present invention additionally relates to a process for the production of these oxazolidine mixtures and to their use in combination with polymer precursors containing isocyanate groups for coating or sealing compositions.
摘要:
Monofunctional polyethers having hydroxyl groups contain as built-in terminal groups or monomers(a) 1 to 30% by weight of one or more C.sub.4 - to C.sub.24 -alkylmonophenols,(b) 1 to 30% by weight of one or more C.sub.8 - to C.sub.24 -monoalkanols,(c) 1 to 30% by weight of one or more C.sub.10 - to C.sub.20 -1,2-epoxyalkanes and(d) 45 to 80% by weight of propylene oxide or a lower alkylene oxide mixture consisting mainly of propylene oxidethe sum of components (a) to (d) adding up to 100% by weight, and have average molecular weights of 600 to 2,500.These polyethers are prepared by anionic epoxide polymerization and used as lubricants and components of lubricants.
摘要:
The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formulaH-OR.sup.1in which R.sup.1 denotes hydrogen, an alkyl radical having 1 to 24 carbon atoms or a hydroxyalkyl radical having 2 to 40 carbon atoms are disclosed together with their use as lubricants.
摘要:
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.
摘要:
A condensation product from aliphatic or cycloaliphatic polyols, aliphatic saturated or once unsaturated hydroxycarboxylic acids and aliphatic or cycloaliphatic saturated or unsaturated monocarboxylic acids is an effective lubricant for the working of metals, optionally in admixture with other lubricating oils and conventional additives.