Abstract: The invention relates to a synergistic mixture of
A from 5 to 99% by weight of a carboxylic acid having more than 4 carbon atoms, an ethercarboxylic acid containing C18-C22-alkyl, C18-C22-alkenyl or C6-C18-alkylaryl substituents, an amidocarboxylic acid, or mixtures thereof,
B from 1 to 95% by weight of a phosphoric mono- or diester, or mixtures thereof, which is substituted by C18-C22-alkyl, C18-C22-alkenyl, C6-C18-alkylaryl or alkoxylated groups,
where the sum of components A and B is 100% by weight, to crude oils containing such mixtures, and to a process for dispersing asphaltenes in crude oils.
Type:
Grant
Filed:
June 24, 1999
Date of Patent:
March 20, 2001
Assignee:
Clariant GmbH
Inventors:
Dennis Miller, Axel Vollmer, Michael Feustel, Peter Klug
Abstract: The invention relates to an additive for inhibiting gas hydrate formation, containing
a) from 5 to 90% by weight of 2-isobutoxyethanol,
b) from 5 to 60% by weight of a copolymer which has structural units which are derived from maleic acid, maleic anhydride or derivatives of maleic acid or of maleic anhydride, and
c) at least 10% by weight of water or a monohydric or polyhydric alcohol, except the 2-isobutoxyethanol, or mixtures of the stated substances,
based on the total weight of the additive, the sum of the contents of compounds a) and b) being from 10 to 90% by weight, and a process for inhibiting gas hydrate formation using 2-isobutoxyethanol.
Abstract: The present invention relates to a process for producing coated bleach activator granules in which bleach activator base granules are coated with a coating substance and are simultaneously and/or subsequently thermally conditioned.
Abstract: Products formed from crosslinked vinyl resins and a plasticizer exhibit a low degree of marring after contacting polymeric substrates or substrates coated with a polymeric layer.