摘要:
Octadienols are prepared by reacting 1,3-butadiene with water in the presence of a catalyst system comprising a palladium compound, a triorganophosphorus compound and carbon dioxide and in the additional presence of a triorganophosphine oxide.
摘要:
The invention relates to the use of compounds (A) with at least one structural unit of formula (I), wherein X represents groups of formula —CR1═CR2— or a carbonyl group C═O, R1 and R2 meaning hydrogen or essentially organic radicals, Z means essentially organic radicals, n means a number from 0 to 3 and p means a number from 0 to 5, as UV absorbers with an affinity for textile fibres, for protecting the human skin from harmful UV radiation and for protecting dyed textile materials from fading.
摘要:
Polymers of a poly(meth)acrylic acid main chain in which, based on the main chain, 0 to 30% by weight of the (meth)acrylic acid basic building blocks may be replaced by maleic acid (anhydride) basic building blocks, fumaric acid basic building blocks or mixtures thereof and 0 to 10% by weight of the (meth)acrylic acid basic building blocks may be replaced by other copolymerizable ethylenic basic building blocks,and C1-30-alkylpoly-C2-4-alkylene glycols, bonded to the main chain via ester groups, having an average molecular weight of from 250 to 10 000 as side chains,where, based on the polymer, 1 to 19% by weight of the main chain and 81 to 99% by weight of the side chains are present and this ratio and the average molecular weight of the side chains are chosen such that free carboxyl groups are present in the polymer,are used as controllable dispersants for detergents or cleaners or constituents thereof.
摘要:
A process for producing agglomerates with a core/shell structure, in which i) initial agglomerates containing a first particulate solid are prepared; ii) a second particulate solid is agglomerated in the presence of the initial agglomerates with the addition of a binder liquid to give second stage agglomerates and, where appropriate, iii) an nth (n≧3) solid is agglomerated in the presence of the (n−1)th stage agglomerates with the addition of a binder liquid to give nth stage agglomerates.
摘要:
Alkyl pentenoates are prepared by reacting butadiene with carbon monoxide and an alkanol in the presence of a cobalt carbonyl complex and a tertiary, aromatic heterocyclic nitrogen base at from 80.degree. to 160.degree. C. under from 100 to 1,000 bar in the presence of from 0.1 to 10% by volume of hydrogen, based on the amount of carbon monoxide used.
摘要:
Carbalkoxy-containing aliphatic compounds are prepared continuously by reacting an olefinically unsaturated aliphatic compound with carbon monoxide and an alkanol in the presence of a cobalt carbonyl catalyst and a tertiary nitrogen base at from 80.degree. to 200.degree. C. and under from 100 to 1,200 bar by an improved process in which carbon monoxide is circulated, and a carbon dioxide content of from 0.1 to 2% by volume is maintained in the carbon monoxide fed to the reaction.
摘要:
Process for the preparation of 1-methylcyclopentene by thermal reaction of cyclohexanol or cyclohexene or mixtures of both compounds to give 1-methylcyclopentene, wherein the resulting by-products 3-methylcyclopentene and 4-methylcyclopentene (double-bond isomers of 1-methylcyclopentene) are returned to the reaction.
摘要:
Described are microcapsule formulations comprising microcapsules having a core of a hydrophobic material, which encloses at least one fragrance or perfume, and a capsule shell which is obtainable by either i) free-radical polymerization of ethylenically unsaturated monomers comprising: from 30 to 100% by weight of one or more C1-C24 alkyl esters of acrylic and/or methacrylic acid, from 0 to 70% by weight of a bi- or polyfunctional monomer, from 0 to 40% by weight of other monomers; or ii) acid-induced condensation of melamine-formaldehyde precondensates and/or their C1-C4 alkyl ethers. Also described are laundry detergent or cleaning product compositions which comprise the microcapsules.
摘要:
Use of cationically modified, particulate, hydrophobic polymers, the surface of which has been cationically modified by coating with polyvalent metal ions and/or cationic surfactants, the particle size of which is 10 nm to 100 μm, as additive to rinse compositions, care compositions, detergents and cleaners, and also rinse compositions, care compositions, detergents and cleaners which comprise the cationically modified, particulate, hydrophobic polymers.
摘要:
The invention relates to the use of crosslinked polyvinylpyrrolidone as an additive to compact, particulate detergents and cleansers for the purpose of increasing the rate of disintegration thereof when brought into contact with water, to the particles of crosslinked polyvinylpyrrolidone having a particle size of from 50 to 400 &mgr;m, to a process for the preparation of the compact, particulate detergents and cleansers, and also to the compact, particulate detergents and cleansers themselves.