公开(公告)号：DE59809861D1

公开(公告)日：2003-11-20

申请号：DE59809861

申请日：1998-12-22

Applicant: BASF AG

Inventor： BEER DR ,  BEISER KLAUS ,  CIPRIAN DR ,  FRANZ DR ,  FRANZISCHKA DR ,  PALM DR ,  PAPE DR ,  PAUL DR ,  PESSEL ULRICH-DIETER ,  WECK ALEXANDER

IPC: B01J39/04 ,  B01J39/05 ,  B01J47/02 ,  B01J47/026 ,  B01J49/00 ,  B01J49/06 ,  C08F6/08 ,  C08G65/20 ,  C08G65/30 ,  C08G65/331 ,  C08J5/20

Abstract: The production of a hydroxyl group containing polymer, preferably polytetrahydrofuran, by ester exchange of the corresponding acyloxy group containing polymer with alcohol in the presence of a sodium containing catalyst involves separation of the sodium cation using a catalytic amount of water by passage through an ion exchange material.

公开(公告)号：DE1293758B

公开(公告)日：1969-04-30

申请号：DEB0082322

申请日：1965-06-09

Applicant: BASF AG

Inventor： KIEFER ,  EUGEN DR HANS ,  RAFF ,  PAUL DR ,  SCHUSTER ,  LUDWIG DR

IPC: C08K5/17

Abstract: 1,148,456. Dihydrotricyclopentadienylamine. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 June, 1966 [9 June, 1965], No. 25518/66. Heading C2C. [Also in Division C3] The invention comprises a dihydrotricyclopentadienylamine having the formula and a process for the preparation thereof wherein tricyclopentadiene is reacted with at least five up to twenty moles of hydrocyanic acid and sulphuric acid in the proportion of more than one but not more than three moles per mole of tricyclopentadiene in the presence of one to three moles of a di-n-alkyl ether at a temperature of from - 5‹ to + 35‹ C. and hydrolysing the resultant N-dihydrotricyclopentadienyl formamide. The product is a rubber accelerator. Examples are furnished.

公开(公告)号：DE1297616B

公开(公告)日：1969-06-19

申请号：DEB0092017

申请日：1967-04-12

Applicant: BASF AG

Inventor： SCHUSTER ,  LUDWIG DR ,  RAFF ,  PAUL DR

IPC: C07C37/14

公开(公告)号：DE50102568D1

公开(公告)日：2004-07-22

申请号：DE50102568

申请日：2001-03-08

Applicant: BASF AG

Inventor： PRECHTL DR ,  HAREMZA DR ,  MEYER DR ,  PARKER ROBERT ,  KUERSCHNER DR ,  VILL DR ,  PAUL DR

IPC: G02F1/13 ,  C07D319/06 ,  C08F20/30 ,  C08J5/18 ,  C09K19/34 ,  C09K19/38 ,  C09K19/58

Abstract: Chiral 2,4,5-tri-substituted 1,3-dioxane compounds (I), with different substituents containing a mesogenic group, and their diastereomers are new. Chiral 2,4,5-tri-substituted 1,3-dioxane compounds of formula (I), with different substituents containing a mesogenic group, and their diastereomers are new: [Image] R1>[P-Y1>-(A1>)m-Y2>-]qM-Y3>-(A2>)n-Y4>- group; R2>, R3>[P-Y1>-(A1>)m-Y2>-]qM-Y3>-(A2>)n-Y4>'-; A1>, A2>spacers with 1-30 carbon atoms; M : a mesogenic group; Y1>, Y2>, Y3>, Y4>a single bond, -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-N(R)-, -(R)N-CO-, -O-CO-O-, -O-CO-N(R)-, -(R)N-CO-O- or -(R)N-CO-N(R)-; Y4>' : -O-, -O-CO-, -O-CO-O- or -O-CO-N(R)-, with the O atom attaching R2>, R3> to the 1,3-dioxane ring; R : hydrogen or 1-4C alkyl; P : H, 1-12C alkyl, a polymerizable group or a group containing a polymerizable group; m, n : 0 or 1; q : 1, 2 or 3. Independent claims are also included for: (a) liquid crystal (LC) compositions containing chiral compound(s) (I); (b) polymerizable LC compositions containing chiral compound(s) (I); (c) optical devices produced using these compositions; (d) printed or coated substrates, dispersions and emulsions, films or pigments prepared using the polymerizable LC compositions.