EP 1404763 B8 20071010 - METHOD FOR THE PRODUCTION OF PLANE-PARALLEL PLATELETS BY USING ORGANIC SEPARATING AGENTS
Title (en)
METHOD FOR THE PRODUCTION OF PLANE-PARALLEL PLATELETS BY USING ORGANIC SEPARATING AGENTS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PLANPARALLELEN PLÄTTCHEN MITTELS ORGANISCHER TRENNMITTEL
Title (fr)
PROCEDE DE PRODUCTION DE PLAQUETTES A FACES PARALLELES AU MOYEN D'UN AGENT DE SEPARATION ORGANIQUE
Publication
Application
Priority
- DE 0201858 W 20020521
- DE 10124796 A 20010521
- DE 10150562 A 20011015
- DE 10151375 A 20011018
Abstract (en)
[origin: US7157116B2] A new method is proposed for the production of plane-parallel platelets, comprising the steps a) vapor-deposition, at a pressure below atmospheric pressure, of a separating agent onto a carrier to produce a separating agent layer, b) vapor-deposition, at a pressure below atmospheric pressure, of at least one product layer onto the separating agent layer, c) dissolution of the separating agent layer in a solvent and production of a suspension in which the at least one product layer is present in the form of plane-parallel platelets, in which method the separating agent is selected from the group consisting of anthracene, anthraquinone, acetamidophenol, acetylsalicylic acid, camphoric anhydride, benzimidazole, benzene-1,2,4-tricarboxylic acid, biphenyl-2,2-dicarboxylic acid, bis(4-hydroxyphenyl)-sulfone, dihydroxyanthraquinone, hydantoin, 3-hydroxybenzoic acid, 8-hydroxyquinoline-5-sulfonic acid monohydrate, 4-hydroxycoumarin, 7-hydroxycoumarin, 3-hydroxynaphthalene-2-carboxylic acid, isophthalic acid, 4,4-methylene-bis-3-hydroxynaphthalene-2-carboxylic acid, naphthalene-1,8-dicarboxylic anhydride, phthalimide and its potassium salt, phenol-phthalein, phenothiazine, saccharin and its salts, tetraphenylmethane, triphenylene, triphenylmethanol, and also mixtures of at least two of those substances. Separating agents that have been found to be especially suitable are aromatic compounds having at least one benzene ring. The present invention relates also to the use of the plane-parallel platelets thereby produced and also to the products obtainable using such methods.
IPC 1-7
IPC 8 full level
C09C 1/00 (2006.01); C09C 1/62 (2006.01); C09C 1/64 (2006.01); C09C 3/06 (2006.01); C09C 3/08 (2006.01); C09C 3/12 (2006.01); C09D 5/24 (2006.01); C09D 11/00 (2006.01); C09D 201/00 (2006.01); C23C 14/00 (2006.01); C23C 14/02 (2006.01)
CPC (source: EP US)
B82Y 30/00 (2013.01 - EP US); C09C 1/62 (2013.01 - EP US); C09C 1/627 (2013.01 - EP US); C09C 1/64 (2013.01 - EP US); C23C 14/0005 (2013.01 - EP US); C23C 14/024 (2013.01 - EP US); C01P 2004/20 (2013.01 - EP US); C01P 2004/62 (2013.01 - EP US); C01P 2004/64 (2013.01 - EP US); C01P 2006/12 (2013.01 - EP US); Y10T 428/31663 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02094945 A1 20021128; AT E305954 T1 20051015; BR 0209964 A 20040413; CA 2446428 A1 20021128; CA 2446428 C 20101026; CN 1302074 C 20070228; CN 1610729 A 20050427; DE 50204481 D1 20060216; DK 1404763 T3 20051212; EP 1404763 A1 20040407; EP 1404763 B1 20051005; EP 1404763 B8 20071010; ES 2249594 T3 20060401; JP 2004532334 A 20041021; JP 4511795 B2 20100728; MX PA03010581 A 20041206; US 2004131776 A1 20040708; US 7157116 B2 20070102
DOCDB simple family (application)
DE 0201858 W 20020521; AT 02742774 T 20020521; BR 0209964 A 20020521; CA 2446428 A 20020521; CN 02810319 A 20020521; DE 50204481 T 20020521; DK 02742774 T 20020521; EP 02742774 A 20020521; ES 02742774 T 20020521; JP 2002592411 A 20020521; MX PA03010581 A 20020521; US 47819003 A 20031118