ES2137922T3 - Procedimiento para preparar oligomeros policarbonato de monocloroformiato de bisfenol y el producto. - Google Patents

Procedimiento para preparar oligomeros policarbonato de monocloroformiato de bisfenol y el producto.

Info

Publication number
ES2137922T3
ES2137922T3 ES91106806T ES91106806T ES2137922T3 ES 2137922 T3 ES2137922 T3 ES 2137922T3 ES 91106806 T ES91106806 T ES 91106806T ES 91106806 T ES91106806 T ES 91106806T ES 2137922 T3 ES2137922 T3 ES 2137922T3
Authority
ES
Spain
Prior art keywords
bisphenol
mixture
introduction
oilomomers
monocloroformiate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES91106806T
Other languages
English (en)
Inventor
Thomas Joseph Fyvie
James Manio Silva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of ES2137922T3 publication Critical patent/ES2137922T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/20—General preparatory processes
    • C08G64/22—General preparatory processes using carbonyl halides
    • C08G64/24—General preparatory processes using carbonyl halides and phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

SE SUMINISTRA UN PROCESO PARA HACER OLIGOMEROS POLICARBONADOS DE FORMATO MONOCLORO DE BISFENOL AL INTRODUCIR CONTINUAMENTE FOSGENO EN UNA MEZCLA DE BISFENOL BAJO CONDICIONES DE AGITACION INTERFACIAL. EL PH DE LA MEZCLA DE FOSGENACION CAE MAS ABAJO DE UN VALOR PREDETERMINADO, Y ASI EFECTUA LA INTRODUCCION DE UN HIDROXIDO ALCALINO ACUOSO CONSISTENTE CON LA UTILIZACION DE SISTEMAS DE CONTROL DE BASE PARTICULAR. DE ACUERDO CON EL USO DE TALES SISTEMAS DE CONTROL, SE PUEDE ESTABILIZAR EL PH DE LA MEZCLA, Y TERMINAR LA FOSGENACION Y LA INTRODUCCION DE BASE CUANDO EL PH DE LA MEZCLA SE HUNDE DE REPENTE HASTA 1 UNIDAD DE PH, O SE NOTA UN INCREMENTO REPENTINO EN EL NIVEL DE FLUJO DE UN HIDROXIDO DE METAL ALCALINO ACUOSO DESPUES DE UNA MESETA EN EL PROMEDIO DE INTRODUCCION DE BASE.
ES91106806T 1990-05-07 1991-04-26 Procedimiento para preparar oligomeros policarbonato de monocloroformiato de bisfenol y el producto. Expired - Lifetime ES2137922T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51998090A 1990-05-07 1990-05-07

Publications (1)

Publication Number Publication Date
ES2137922T3 true ES2137922T3 (es) 2000-01-01

Family

ID=24070683

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91106806T Expired - Lifetime ES2137922T3 (es) 1990-05-07 1991-04-26 Procedimiento para preparar oligomeros policarbonato de monocloroformiato de bisfenol y el producto.

Country Status (4)

Country Link
EP (1) EP0456053B1 (es)
JP (1) JPH0778119B2 (es)
DE (1) DE69131672T2 (es)
ES (1) ES2137922T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016544A1 (de) 2000-04-03 2001-10-11 Bayer Ag C2-phenylsubstituierte Ketoenole
CN102161753B (zh) * 2003-02-21 2015-07-15 沙特基础全球技术有限公司 透明和高热聚碳酸酯-聚硅氧烷共聚物和含有聚碳酸酯的透明共混物及其制造过程

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193528A (en) * 1959-10-12 1965-07-06 Dow Chemical Co Process of preparing monochloroformates and process of preparing polycarbonates therefrom
IT998851B (it) * 1972-10-30 1976-02-20 Gen Electric Procedimento per la preparazione di policarbonati aromatici
US4810813A (en) * 1986-09-08 1989-03-07 General Electric Company Method for making reaction products of phosgene and dihydric phenol with stable suspension of dihydric phenol, alkali metal hydroxide and water
US4737573A (en) * 1986-10-10 1988-04-12 General Electric Company Method for polymerizing aromatic bischloroformate composition to polycarbonate
EP0274743A3 (en) * 1987-01-16 1989-07-26 General Electric Company Bischloroformate preparation method with phosgene removal and monochloroformate conversion
US4743676A (en) * 1987-05-07 1988-05-10 General Electric Company Method for preparing polycarbonate of controlled molecular weight from aromatic bischloroformate

Also Published As

Publication number Publication date
DE69131672T2 (de) 2000-05-25
JPH04270729A (ja) 1992-09-28
EP0456053A2 (en) 1991-11-13
DE69131672D1 (de) 1999-11-11
EP0456053B1 (en) 1999-10-06
EP0456053A3 (en) 1992-06-10
JPH0778119B2 (ja) 1995-08-23

Similar Documents

Publication Publication Date Title
GB8706148D0 (en) Dispersions & emulsions
ES2007768A6 (es) Un procedimiento para obtener un producto borado de contenido en carbonato elevado.
JPS5322582A (en) Production of polyethylene
JPS5540306A (en) Plastic holder
ES2137922T3 (es) Procedimiento para preparar oligomeros policarbonato de monocloroformiato de bisfenol y el producto.
AU8303391A (en) Reclaiming of foam off-cuts and/or waste foam
JPS6483522A (en) Porous and fine sphere of iron oxide and production thereof
GB1411536A (en) Stabilised aromatic polyamides
JPS5236316A (en) Divable tank
GB1163332A (en) A process for Stabilizing Polyarylsulphone Polymers
JPS52134898A (en) Gap single crystal with low dislocation density
JPS5610328A (en) Constant pressure type deoxidizer
JPS5738830A (en) Production of cellular sheet
JPS5346489A (en) Production of cation exchange membrane with excellent selective permeability
JPS5241183A (en) Dispersant for hydropholic powder
Sarkar et al. Effects of ammonium sulfate on the behavior, survival, feeding, growth and reproduction of fish.
JPS5276282A (en) F-contg. cation exchange resin membrane
JPS5423724A (en) Pooduction of rushlike structure
JPS5332581A (en) Extruder screw having eccentric ring
JPS5573885A (en) Preparation of diaphragm
JPS5315279A (en) Electrochromic display device
ES255015U (es) Distribuidor de crema de afeitar
JPS5323900A (en) Electrolytic method for alkali chloride aq. solution
JPS53135761A (en) Arrangement for pump
JPS5322290A (en) Metho d for landing solid-siquid mixture from ship and ship therefor

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 456053

Country of ref document: ES