Processing

Please wait...

Settings

Settings

Goto Application

1. WO1992016537 - ALKYL-AROMATIC DIPHOSPHITES

Publication Number WO/1992/016537
Publication Date 01.10.1992
International Application No. PCT/US1992/001587
International Filing Date 26.02.1992
Chapter 2 Demand Filed 08.10.1992
IPC
C07F 9/6574 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
6564having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
6571having phosphorus and oxygen atoms as the only ring hetero atoms
6574Esters of oxyacids of phosphorus
C07F 9/6578 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
6564having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
6578having phosphorus and sulfur atoms with or without oxygen atoms, as ring hetero atoms
C08K 5/527 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5Use of organic ingredients
49Phosphorus-containing compounds
51Phosphorus bound to oxygen
52bound to oxygen only
527Cyclic esters
CPC
C07F 9/65748
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
6564having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
6571having phosphorus and oxygen atoms as the only ring hetero atoms
6574Esters of oxyacids of phosphorus
65748the cyclic phosphorus atom belonging to more than one ring system
C07F 9/6578
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
6564having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
6578having phosphorus and sulfur atoms with or without oxygen atoms, as ring hetero atoms
C08K 5/527
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUse of inorganic or non-macromolecular organic substances as compounding ingredients
5Use of organic ingredients
49Phosphorus-containing compounds
51Phosphorus bound to oxygen
52Phosphorus bound to oxygen only
527Cyclic esters
Applicants
  • ETHYL CORPORATION [US]/[US] (AllExceptUS)
  • ELNAGAR, Hassan, Y. [US]/[US] (UsOnly)
Inventors
  • ELNAGAR, Hassan, Y.
Agents
  • HOGAN, Patricia, J.
Priority Data
674,46225.03.1991US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ALKYL-AROMATIC DIPHOSPHITES
(FR) DIPHOSPHITES ALKYLE-AROMATIQUES
Abstract
(EN) Novel alkyl-aromatic disphosphites having antioxidant and flame-retarding abilities and corresponding to formula (I), can be prepared by reacting a 2,2'-bridged bisphenol corresponding to formula (II), with pentaerythritol dichlorophosphite at 20-150 °C in the presence of a basic catalyst; R and R' in the formulas representing hydrocarbyl groups, R'' being a divalent bridging group, and n being 0 or 1. These diphosphites have good hydrolytic stability per se and can be made even more resistant to hydrolysis by stabilizing them with at least 0.5 % by weight of an acid scavenger, preferably before they are recovered from their synthesis reaction mixtures.
(FR) On peut préparer de nouvelles diphosphites alkyle-aromatiques possédant des pouvoirs anti-oxydants et ignifuges et correspondant à la formule (I), en faisant réagir un bisphénol à liaison en pont en position 2,2' correspondant à la formule (II) avec de la dichlorophosphite de pentaérythritol à des températures comprises entre 20 et 150 °C en présence d'un catalyseur basique. Dans les formules (I) et (II), R et R' représentent des groupes hydrocarbyles, R'' représente un groupe de liaison en pont divalente et n est égal à 0 ou à 1. Ces diphosphites se caractérisent par une bonne stabilité hydrolytique en soi et on peut les rendre encore plus résistantes à l'hydrolyse en les stabilisant avec au moins 0,5 % en poids d'un piègeur d'acide, de préférence avant qu'elles soient récupérées de leurs mélanges de réaction de synthèse.
Latest bibliographic data on file with the International Bureau