1
Michael Portugall, Heino Finkelmann, Helmut Ringsdorf: Liquid-crystalline polymer phase having a cholesteric structure, processes for its preparation and its use. BASF Aktiengesellschaft, Keil & Witherspoon, October 6, 1981: US04293435 (104 worldwide citation)

A liquid-crystalline polymer phase having an induced cholesteric structure comprises a component having a chiral structure and a component having a nematic structure and contains a polymer with nematogenic units of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, n is an integer from 1 to ...


2
Heino Finkelmann, Gunther Rehage, Georg Kollmann: Compositions containing liquid crystal phases. Wacker Chemie, November 9, 1982: US04358391 (63 worldwide citation)

Compositions having liquid crystal phases which contain at least one component consisting of an organopolysiloxane having mesogenic molecules chemically bonded thereto as side chains which are obtained by grafting vinyl-substituted mesogenic molecules to an organohydrogenpolysiloxane. The organopoly ...


3
Heino Finkelmann, Gunther Rehage, Franz Heinrich Kreuzer: Crosslinked organopolysiloxanes having liquid-crystalline properties. Consortium fur Elektrochemische, June 14, 1983: US04388453 (56 worldwide citation)

This invention relates to crosslinked organopolysiloxanes having liquid-crystalline properties in which mesogenic molecules are chemically bonded to the organopolysiloxane lattices. These crosslinked organopolysiloxanes are prepared from silanes or siloxanes containing mesogenic molecules which are ...


4
Heino Finkelmann, Jurgen Kupfer: Liquid-crystalline elastomers or thermoset materials having a fixed anisothropic network structure. Heino Finkelmann, Millen White Zelano & Branigan, January 31, 1995: US05385690 (17 worldwide citation)

The invention relates to a process for the preparation of liquid-crystalline elastomers or thermoset materials having a fixed, anisotropic network structure, characterized in that liquid-crystalline elastomers containing reactive radicals having unreacted functional groups are aligned in a first ste ...


5
Dieter Dorsch, Rudolf Eidenschink, Andreas Wachtler, Bernhard Rieger, Heino Finkelmann: Polymerizable liquid-crystal material and polymers exhibiting liquid-crystal phases. Merck Patent Gesellschaft mit beschraenkter Haftung, Millen White Zelano and Branigan, November 17, 1992: US05164111 (7 worldwide citation)

The invention relates to polymerizable liquid-crystal materials and to polymer materials which exhibit liquid-crystal phases and which contain, attached directly or via a spacer, mesogenic groups in which at least one transversely polarizing structural element of the formulae I to X, defined in clai ...


6
Hans Jakob Kock, Ekhard Winkler, Richard Baur, Heino Finkelmann, Markus Schafheutle: Amphiphilic 4-alkoxypolyethoxybenzoates, their preparation and their use. BASF Aktiengesellschaft, Oblon Fisher Spivak McClelland & Maier, January 31, 1989: US04801734 (7 worldwide citation)

Nonionic substances which form disk-shaped micelles in aqueous solution and are of the formula ##STR1## where R is H or ##STR2## R.sup.1 is C.sub.1 -C.sub.4 alkyl, R.sup.2 is H or CH.sub.3, x is from 3 to 12 and y is from 3 to 15, and polymers of compounds of the formula I where R is ##STR3## proces ...


7
Heino Finkelmann, Friedrich Hessel, Rudolf Eidenschink, Joachim Krause: Polymer materials having liquid-crystalline phases. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White Zelano and Branigan, March 2, 1993: US05190689 (4 worldwide citation)

The invention concerns polymer materials exhibiting liquid-crystalline phases which contain laterally bonded mesogenic groups and processes for the preparation of the polymer materials comprising the polymerization and/or grafting of suitable monomers. The polymer materials according to the inventio ...


8
Heino Finkelmann, Bernfried Messner: Polymers having liquid crystal phases containing 2-cyanoacrylic acid ester group. Merck Patent Gesellschaft mit beschrankter Haftung, Millen White & Zelano, September 29, 1992: US05151481 (1 worldwide citation)

The invention relates to polymer materials which contain liquid crystal phases and have mesogenic groups which are bonded chemically directly or via a spacer and contain a 2-cyanoacrylic acid ester unit.