摘要:
Neue Siliconpolyether durch alkoxylierende Polymerisation von Epoxidmonomeren mit (Poly)Organosiloxanen ausgehend von einem α,ω-Dihydroxysiloxan als Starter mittels DMC-Katalyse und Verfahren zu deren Herstellung.
摘要:
An aryl group containing phosphite, such as triphenyl phosphite, can be added to a reaction mixture comprising an organophosphorus compound, phosphorus pentoxide and an alkylene oxide, optionally in the presence of a reagent for the incorporation of hydroxy functionality in the final product. The aryl group containing phosphite is employed to improve the color characteristics of the resulting oligomeric organophosphorus composition.
摘要:
The present invention is the following invention which provides a cement admixture which satisfies fluidity of fresh concrete and high strength of the hardened product of concrete simultaneously. Namely, the present invention resides in a cement admixture which is a mixture of fluorine-containing compounds represented by the formula (1):
R f -Q 1 -O-(A 1 -O) k -R 1 (1)
wherein R f is a C 1-22 polyfluoroaliphatic hydrocarbon group which may contain ethereal oxygen atoms or thioethereal sulfur atoms, Q 1 is a C 1-5 linear or branched alkylene group, k is an integer of from 1 to 100, A 1 is a C 2-4 linear alkylene group or a group having at least one hydrogen atom of said alkylene group substituted by a hydrocarbon group which may contain ethereal oxygen atoms, provided that when k is from 2 to 100, the plurality of A 1 may be the same or different, and R 1 is a hydrogen atom, a C 1-18 hydrocarbon group or a C 1-18 acyl group, said mixture having a ratio of the weight average molecular weight (M w ) to the number average molecular weight (M n ) (i.e. M w /M n ) of at least 1.1, and concrete which contains said cement admixture.
摘要翻译:本发明提供了一种能够同时满足新拌混凝土的流动性和高强度混凝土产品的水泥混合物的发明。 也就是说,本发明涉及一种水泥混合物,它是由式(1)表示的含氟化合物的混合物:R f -Q 1 -O-(A 1 -O)k R 1 其中R f是可以含有醚性氧原子或硫代硫代硫原子的C1-22多氟脂族烃基,Q 1是C1-5直链或支链亚烷基,k是1至100的整数, A 1是C2-4直链亚烷基或具有被可含有醚原子的烃基取代的所述亚烷基的至少一个氢原子的基团,条件是当k为2〜100时,多个 A 1可以相同或不同,R 1是氢原子,C 1-18烃基或C 1-18酰基,所述混合物的重均分子量(Mw)与 至少1.1的数均分子量(Mn)(即Mw / Mn)和含有所述水泥外加剂的混凝土。
摘要:
Die vorliegende Erfindung betrifft selbstvernetzende Zubereitungen aus Wasser (A), Perfluoralkylgruppen enthaltenden Alkoxysilanverbindungen (B), Perfluoralkylgruppen enthaltenden, wasserlöslichen oder in Wasser emulgierbaren oder dispergierbaren Verbindungen (C) und gegebenenfalls weiteren Bestandteilen (D), deren Herstellung und Verwendung. Die Komponente C ist erhältlich durch Umsetzung einer Epoxidverbindung mit einem Perfluoralkylsulfonamid und einer Komponente mit Oxyethyleneinheiten und gegenüber Epoxiden reaktiven Gruppen. Bevorzugt wird dabei auch gleichzeitig die Komponente A aus einem glycidylsubstituierten Alkoxysilan und dem Perluoralkylsulfonamid hergestellt. Die Zubereitungen finden Verwendung als Behandlungs-, Schutz- und Imprägniermittel für Glas, Gesteinsmaterialien, Leder, Textilien und Papier.
摘要:
A novel fluorinated hydrocarbon compound containing an oxygen or sulfur atom in its molecule, produced by the nucleophilic reaction of a fluorine compound with a hydrocarbon compound. This compound is useful as a lubricant for various applications and particularly excellent as an oil for refrigerators wherein hydrochlorofluorocarbon is used as the refrigerant and as a magnetic recording medium lubricant.
摘要:
A process for producing a polyoxyalkylene compound by the ring-opening polymerization of an alkylene oxide with a specified highly hydrophobic initiator, which comprises conducting the ring-opening polymerization of an alkylene oxide with an initiator selected from the group consisting of organopolysiloxane compounds having an active hydrogen functional group which can react with the alkylene oxide and fluorine compounds having both of the active hydrogen functional group and a fluorohydrocarbon group in the presence of a composite metal cyanide complex catalyst. The complex catalyst comprises a complex containing at least two kinds of metal and cyanide ions as part or the whole of the ligands and capable of catalyzing the ring-opening polymerization of alkylene oxides. Particular examples thereof include hexacyano cobalt zinc complexes such as a hexacyano cobalt zinc-glyme complex and composite metal cyanide complex catalyts disclosed in, for example, U.S. Patent Nos. 3278457, 3278458 and 3278459. Examples of the active hydrogen functional group include hydroxyl, mercapto, primary amino, secondary amino, and carboxyl. The organopolysiloxane and fluorine compounds are those which have at least one organic group containing such functional group. Examples of the organopolysiloxane compound include polydimethylsiloxane having the above organic group, while those of the fluorine compound include compounds having both of the above organic group and a perfluoroalkyl group.
摘要:
Additives for internal combustion engines are provided which in fuels maintain cleanliness of intake system without contributing to combustion chamber deposits while in lubricating oils provide dispersancy and detergency. The additives are hydrocarbyl methylol poly(oxyalkylene) amino ethanes comprising a hydrocarbyl-terminated methylol poly(oxyalkylene) chain of 2 to 4 carbon oxyalkylene units bonded to an ethane or substituted ethane chain in turn bonded to a nitrogen atom of an amine or polyamine having from 1 to 12 amine nitrogens and from 2 to 40 carbon atoms.
摘要:
Oligomere Phosphonsäureester, die erhalten werden durch Umsetzung von sauren Phosphonsäurederivaten der Formel I worin R¹ und R² gleiche oder verschiedene gesättigte oder ungesättigte geradkettige oder verzweigte aliphatische alicyclische, aromatische oder araliphatische Kohlenwas serstoffreste mit 1-8 Kohlenstoffatomen, bevorzugt C₁-C₃- Alkyl, besonders bevorzugt Vinyl, R³ Wasserstoff, Alkyl mit 1-4 Kohlenstoffatomen, Al kenyl mit 3 oder 4 Kohlenstoffatomen oder 2-Hydroxiethyl, bevorzugt Ethyl, besonders bevorzugt Methyl, m Zahlen von 2-20, bevorzugt 2-6, p Zahlen von 0-19, bevorzugt 0 oder von 1,5 bis 5, be deuten, mit Ethylenoxid umsetzt und deren Verwendung als Flamm hemmittel.
摘要:
The present disclosure relates to cosmetic compositions comprising an organosilane (A) having the formula: (R1)n(R2O)(3−n)SiR3O(CH2CH2O)a(C3H6O)bR4 where n is 1, 2, or 3, a≧1, b may vary from 0 to 30, with the proviso a≧b, R1 is a hydrocarbon group containing 1 to 12 carbon atoms, R2 is hydrogen or an alkyl group containing 1 to 6 carbon atoms, R3 is a divalent hydrocarbon group containing 2 to 12 carbon atoms, R4 is hydrogen, R1, or an acetyl group; and a cosmetic ingredient (B), and optionally in a cosmetically acceptable medium.