Abstract: Alkoxylates of the formula (I) C5H11CH(C3H7)CH2O(A)n(CH2CH2O)mH??(I) where A is propyleneoxy, buteneoxy or penteneoxy, n is a number in the range from 1 to 8, m is a number in the range from 2 to 20, are used as emulsifier, foam regulator and as wetting agent for hard surfaces.

Abstract: Alkoxylates of the formula (I) C5H11CH(C3H7)CH2O(A)n(CH2CH2O)mH??(I) where A is propyleneoxy, buteneoxy or penteneoxy, n is a number in the range from 1 to 8, m is a number in the range from 2 to 20, are used as emulsifier, foam regulator and as wetting agent for hard surfaces.

Abstract: Alcohol alkoxylates of the formula (I) R1—O—(CH2—CHR5—O—)r(CH2—CH2—O—)n(CH2—CHR6—O—)s(CH2—CHR2—O—)mH  (I) where R1 is an at least singly branched C4-22-alkyl R2 is C3-4-alkyl R5 is C1-4-alkyl R6 is methyl or ethyl n is an average value from 1 to 50 m is an average value from 0 to 20 r is an average value from 0 to 50 s is an average value from 0 to 50, where m is at least 0.5 if R5 is methyl or ethyl or r is 0, or alcohol alkoxylates of the formula (II) R3—O—(CH2—CH2—O—)p(CH2—CHR4—O—)qH  (II) where R3 is branched or unbranched C4-22-alkyl R4 is C3-4-alkyl p is an average value of from 1 to 50 q is an average value of from 0.5 to 20 are used as low-foam or foam-suppressing surfactants.

Abstract: 1.

Abstract: The invention relates to the use of at least one compound of general formula (I), ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R.sub.4 represents an alkyl or alkenyl radical, and n represents 1 to 5; or of an acid addition salt thereof, as an inhibitor of corrosion in the extraction, processing, storage and transportation of crude oil and natural gas, and to a process for the preparation of this compound.

Abstract: Isotridecanol block alkoxylates I ##STR1## where R is isotridecyl,m is 2 when n is 3 or 4, orm is 3 or 4 when n is 2, andx and y are independently of each other from 1 to 20,subject to the proviso that x is not less than y when m=2 and n=3 or 4,are useful as low-foam or foam-suppressing surfactants, especially in detergent and cleaner formulations and for chemical-technical applications.

Abstract: Sulfonated and oxidized indene polymers obtainable by(a) polymerization of indene or indene derivatives of the general formula I ##STR1## where R.sup.1 is hydrogen, methyl or ethyl and n is 1 or 2, or of mixtures which contain the compounds I as well as other copolymerizable and/or non-polymerizable organic compounds in an amount of at least 10% by weight,b) sulfonation of the polymer with a sulfonating agent at from 40.degree. to 130.degree. C., andc) non-chain-degrading oxidation of the polymer at from 80.degree. to 180.degree. C.These indene polymers are suitable for use as dispersants for example in dye and pigment preparations.

Abstract: Dispersants of increased bioeliminability or biodegradability for use in dye and pigment preparations, as tanning aids, in plastics production and in crop protection formulations contain from 3 to 50% by weight of one or more aromatic or long-chain aliphatic carboxylic acids, salts thereof or anhydrides thereof or a mixture thereof.