[EN] PROCESS FOR PREPARATION OF ALUMINUM SALT OF PHOSPHONIC ACID ESTER<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN SEL D'ALUMINIUM D'UN ESTER D'ACIDE PHOSPHONIQUE
申请人:ICL IP AMERICA INC
公开号:WO2013077989A1
公开(公告)日:2013-05-30
There is provided herein a process for the preparation of aluminum salts of phosphonic acid esters by reacting phosphonic acid diesters with aluminum hydroxide in the presence of a catalyst. The catalyst is selected from the group consisting of a phase transfer catalyst, a thermally stable tertiary amine having a boiling point higher than about 140°C, a thermally stable tertiary phosphine having a boiling point higher than 140°C and combinations thereof. The aluminum phosphonates prepared can be used for making flame retarded thermoplastic polymers.
[EN] BUTADIEN2,3-DIYL LINKED DI-DOPO DERIVATIVES AS FLAME RETARDANTS<br/>[FR] DÉRIVÉS DE DI-DOPO LIÉS OAR BUTADIÈN-2,3-DIYLE EN TANT QUE RETARDATEURS DE FLAMME
申请人:ALBEMARLE CORP
公开号:WO2014179688A1
公开(公告)日:2014-11-06
Disclosed are novel, halogen-free flame-retardants derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO) of the structure below: This invention also relates to the use of the halogen free DOPO derived compositions as flame-retardants in polymers, and a process of preparing the above compounds by reacting a formula A compound with a formula B compound:
[EN] IMPROVEMENTS IN OR RELATING TO CURATIVES<br/>[FR] AMÉLIORATIONS APPORTÉES OU SE RAPPORTANT À DES AGENTS DE DURCISSEMENT
申请人:HEXCEL COMPOSITES LTD
公开号:WO2020216688A1
公开(公告)日:2020-10-29
The host compound in a clathrate is an amino or hydroxyl containing aromatic phosphorous compound, clathrates containing a resin curative and their use in curable resin compositions to produce moulded articles particularly fibre reinforced articles.
The present invention relates to curatives for epoxy resins, and compositions (e.g. adhesives) containing such resins cured using the same methods of preparation and uses therefor. More specifically, the present invention relates to hybrid curatives for epoxy resins comprising both aromatic amine, phenol and/or phenyl ester moieties. A further aspect of the current invention relates to new imidazole catalysts that possess a combination of excellent cure latency as well as low cure temperature onset.
METHOD FOR PRODUCING CYANOGEN-HALIDE, CYANATE ESTER COMPOUND AND METHOD FOR PRODUCING THE SAME, AND RESIN COMPOSITION
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US20150299110A1
公开(公告)日:2015-10-22
A method for efficiently producing a cyanogen halide with suppressed side effects, and a method for producing a high-purity cyanate ester compound at a high yield includes contacting a halogen molecule with an aqueous solution containing hydrogen cyanide and/or a metal cyanide, so that the hydrogen cyanide and/or the metal cyanide is allowed to react with the halogen molecule in the reaction solution to obtain the cyanogen halide, wherein more than 1 mole of the hydrogen cyanide or the metal cyanide is used based on 1 mole of the halogen molecule, and when an amount of substance of an unreacted hydrogen cyanide or an unreacted metal cyanide is defined as mole (A) and an amount of substance of the generated cyanogen halide is defined as mole (B), the reaction is terminated in a state in which (A):(A)+(B) is between 0.00009:1 and 0.2:1.