Schill + Seilacher “Struktol” Aktiengesellschaft

Basf Se Corporation

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Forschungszentrum Karlsruhe Gmbh

Chemische Fabrik Budenheim Kg

Schill & Seilacher (gmbh & Co.)

Metadynea Austria Gmbh

Krems Chemie Chemical Services Ag

Michael Ciesielski

Manfred Döring

Uwe Dittrich

Berthold Just

Manfred Doering

Stephan Sprenger

Klaus Hahn

Rudolf Pfaendner

Klemens Massonne

Christoph Fleckenstein

Peter Deglmann

Thomas Futterer

Patrick Spies

Ingo Bellin

Maximilian Hofmann

Jochen Wagner

Sabine Fuchs

Geert Janssens

Hendrik Wermter

Hartmut Denecke

Thomas Zich

Holger Keller

Uwe Storzer

Robert Vogt

Rainer Ostermann

Max Briesenick

Rainer Utz

Bettina Burk

Carsten Kollann

Bernadette Mehofer

Fritz Johann Freidl

Benedikt Sperlich

Robin Nezami

Elias Chalwatzis

Johannes Artner

Michael Hönel

Gilbert Zwick

Muriel Rakotomalala

The present invention relates to the use of efficient phosphorous substances, in particular based on diphenylamine and heterocyclic diphenylamine derivatives as stabilizers for organic materials, in particular for plastic materials, against oxidative, thermal and/or actinic degradation. The present invention additionally relates to an organic material that has been correspondingly stabilized as described above. The invention further relates to a method of stabilizing organic materials and to specific stabilizers.

Efficient phosphorous stabilizers based on diphenylamine and heterocyclic diphenylamine derivatives

A duromer, a method for producing the duromer, a use of the duromer as well as a flame retardant containing the duromer and plastics compositions thereof are disclosed. A phosphorous-containing polymer which is based on multi-functional esters of unsaturated carboxylic acids is three-dimensionally cross-linked and forms the claimed duromer as described. The duromer is suitable as a flame retardant and suitable for use in flame retardants for plastics.

Duromer, production method, use and compositions

Flame retardant

Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof. The invention refers to nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, a process for the preparation thereof and their use as flameproofing agents for polymers such as polyesters, polyamides, polycarbonates, polystyrenes, polyethylene, polypropylene, phenolic and epoxy resins. The derivatives have the Formulae I or II: 

Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof

A process is provided for the preparation of 9,10-dihydro-9-oxa-10-organyloxyphosphaphenanthrene-10-oxide or -thione and derivatives of same substituted on the phenyl groups, in which: (a) 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOP) or a derivative of same is reacted in the presence of at least one mono- or polyhydric alcohol with at least one ortho ester with formation of a first intermediate product, (b) the intermediate product from step (a) is optionally reacted with at least one further mono- or polyhydric alcohol with formation of a further intermediate product and (c) the intermediate product from steps (a) or (b) is transformed by addition of oxidation agent into 9,10-dihydro-9-oxa-10-organyloxyphosphaphenanthrene-10-oxide or -thione or a derivative of same substituted on the phenyl groups.

Process for the preparation of 9, 10-dihydro-9-OXA-10-organyloxyphosphaphenanthrene-10-oxide or -thione and derivatives of the same substituted on the phenyl groups

A process is provided for the preparation of 9,10-dihydro-9-oxa-10-organylphosphaphenanthrene-10-oxide and derivatives of same substituted on the phenyl groups, in which: (a) 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOP) or a derivative of same is reacted in the presence of at least one mono- or polyhydric alcohol with at least one ortho ester with formation of a first intermediate product, (b) the intermediate product from step (a) is optionally reacted with at least one further mono- or polyhydric alcohol with formation of a further intermediate product and (c) the intermediate product from steps (a) or (b) is transformed by addition of catalytic quantities of alkylation agent into 9,10-dihydro-9-oxa-10-organylphosphaphenanthrene-10-oxide or a derivative of same substituted on the phenyl groups.

Process for the preparation of 9,10-dihydro-9-oxa-10-organylphosphaphenanthrene-10-oxide and derivatives of the same substituted on the phenyl groups

The present invention relates to a process for preparing 6-alkoxy-(6H)-dibenzo[c,e][1,2]oxaphosphorins, wherein 6H-dibenzo[c,e][1,2]oxaphosphorin 6-oxides of the formula I are used as the reactant.

Method for producing 6-alkoxy-(6H)-dibenz [c,e] [1,2]-oxaphosphorines

Combination compounds from curing agents/accelerators and flame-protection agents for the latent curing/acceleration of epoxide resin systems and their endowment with flame-retarding properties, the epoxide resin systems being able to be thermally cured, as well as the products prepared from the epoxide resin systems.

Latent combination compounds and latent ammonium salts comprising epoxide resin curing agents and flame-protection agents as well as epoxide resin systems and products prepared from them

Growing community of inventors

Merseburg, Germany

Michael Ciesielski