公开(公告)号：DE19616339A1

公开(公告)日：1997-10-30

申请号：DE19616339

申请日：1996-04-24

Applicant: HOECHST AG

Inventor： KLUG PETER DR ,  WEINELT FRANK DR ,  FALK UWE DR

IPC: C07C59/125 ,  C07C59/305 ,  C07C59/315 ,  C07C67/31 ,  C07C69/708 ,  C07C69/734 ,  C07C235/08 ,  C07D295/185 ,  C10M105/38 ,  C10M105/40 ,  C10M105/56 ,  C10M105/68 ,  C10M107/34 ,  C07B41/04 ,  C07C69/68 ,  C07C205/44 ,  C10M105/32 ,  C10M105/54

Abstract: The invention relates to novel acetals of the general formula R CO-X-O-C(R R )-O-Y-COR , in which R , R independently of each other are hydrogen, a C1-C12 alkyl radical, a C6-C12 aryl radical or a C7-C12 aralkyl radical; X, Y independently of each other are a branched or unbranched C1-C30 alkylene radical or a branched or unbranched C2-C30 alkylene radical; R , R independently of each other are -OH, -OM, -OR , -NH2, -NHR or -NR R , -M being an alkaline ion, an alkaline earth ion or an ammonium ion of the formula HN R R R or mixtures thereof, R to R independently of each other being hydrogen, a C1-C10 alkyl or a C1-C10 hydroxyalkyl, and R to R independently of each other being a C1-C200 alkyl radical, a C6-C50 aryl radical or a C7-C50 aralkyl radical, and R to R possibly being substituted with heteroatoms or interrupted by heteroatoms, and R and R possibly jointly forming a ring of 4 to 10 atoms. Said novel acetals are suitable as base oils for metal working liquids.

公开(公告)号：DE4234230A1

公开(公告)日：1994-04-14

申请号：DE4234230

申请日：1992-10-10

Applicant: HOECHST AG

Inventor： CABRERA IVAN DR ,  FALK UWE DR ,  HICKEL WERNER DR ,  LUPO DONALD DR ,  SCHEUNEMANN UDE DR ,  BOLDT PETER PROF DR ,  BLENKLE MARTIN DIPL CHEM

IPC: B05D1/20 ,  C07D495/04 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  G02F1/365 ,  G02F1/37

公开(公告)号：DE4233987A1

公开(公告)日：1994-04-14

申请号：DE4233987

申请日：1992-10-09

Applicant: HOECHST AG

Inventor： CABRERA IVAN DR ,  FALK UWE DR ,  HICKEL WERNER DR ,  LUPO DONALD DR ,  SCHEUNEMANN UDE DR ,  BOLDT PETER PROF DR ,  RASE JENS

IPC: C07D333/34 ,  C07D409/06 ,  C07F3/14 ,  G02B6/12 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  B05D5/06 ,  G01J3/45

Abstract: New thiophene cpds. are 5-alkylthiothien-2-yl-Hg acetates and 5-alkylthio-thiophene-2-aldehyde derivs. of formula (I), where R=1-22C alkyl; X=-Hg-OCOCH3 or -CH=B; and B=a substd. C or N atom. More specifically X=-CH=C(CN)2, -CH=CH-Pyr+A-, -CH=CH-Phe-R2, -CHC=NOH or -CH=N-NH-Phe-R2; Pyr+=N-R1-substd. pyridinium-4-yl; R1=1-22, esp. 12-22C alkyl; Phe=p-phenylene; R2=a substit. more negative than H; A-=an anion; R=12-22C alkyl, esp. Me. USE/ADVANTAGE - (I) and 2-(1-22C)-alkyl-thiophene-5-aldehyde (II) are used for nonlinear optical (NLO) purposes; and some (I) are used in laminates with at least a mono-mol. layer of (I) on a substrate (claimed). These laminates can be structurised to 2D waveguides. (I), which have donor and acceptor substits., have absorption max. below 500, pref. below 450, esp. below 400 nm, high stability towards the atmos., elevated temps. and light and high NLO activity.

公开(公告)号：DE19516908A1

公开(公告)日：1995-11-16

申请号：DE19516908

申请日：1995-05-09

Applicant: HOECHST AG

Inventor： ALTHOFF OLAF DR ,  FALK UWE DR ,  SCHEUNEMANN UDE DR ,  PRAS WERNER DR ,  HICKEL WERNER DR

IPC: B01D53/22 ,  B01D69/12 ,  B01D71/32 ,  B01D71/36 ,  B01D71/38 ,  B05D1/20 ,  B32B5/18 ,  B32B27/00 ,  B32B27/08 ,  B32B27/16 ,  B32B27/30 ,  B01D67/00 ,  B01D61/36

Abstract: A composite membrane comprises a porous base membrane (A) and a fluorine-contg. perm-selective layer (C) 10-500 nm thick consisting of a copolymer of: (a) 10-80 mole% units of a vinyl ester of formula (I); (b1) 5-40 mole% vinyl alcohol units of formula (II) or (b2) 5-50 mole% units of formula (III); and (c) at least 10 mole% fluoro-olefin, with the OH gp.-contg. chains crosslinked with one another. In the formula, R1-R3 = H, alkyl, cycloalkyl or aryl, with a total of 5-30 C atoms over all 3 gps.; R4 = OH, opt. with up to 10% of the gps. R4 replaced by -OCOR5 (with R5 = Me, Et or Pr); R6 = 1-6C linear or branched alkylene. Also claimed is a process for the prodn. of this membrane, by dissolving the above terpolymer in a solvent, mixing with a polyfunctional isocyanate, spreading the soln. on water, evaporating the solvent and transferring the layer (C) thus obtd. to a base membrane (A). Also claimed is a membrane as described above in which the copolymer in layer (C) is uncrosslinked. Preferably, R1-R3 = alkyl or cycloalkyl with a total of 7-9 C atoms, pref. with at least one of these gps. = Me; R6 = 1,4-butylene.