ES2083397T3 - Procedimiento para preparar policarbonatos de peso molecular controlado a partir de biscloroformiatos. - Google Patents
Procedimiento para preparar policarbonatos de peso molecular controlado a partir de biscloroformiatos.Info
- Publication number
- ES2083397T3 ES2083397T3 ES90111859T ES90111859T ES2083397T3 ES 2083397 T3 ES2083397 T3 ES 2083397T3 ES 90111859 T ES90111859 T ES 90111859T ES 90111859 T ES90111859 T ES 90111859T ES 2083397 T3 ES2083397 T3 ES 2083397T3
- Authority
- ES
- Spain
- Prior art keywords
- molecular weight
- biscloroformiatos
- procedure
- controlled molecular
- weight polycarbonates
- 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
Links
- 229920000515 polycarbonate Polymers 0.000 title abstract 3
- 239000004417 polycarbonate Substances 0.000 title abstract 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- C08G64/26—General preparatory processes using halocarbonates
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
LOS POLICARBONATOS AROMATICOS CON UN PESO MOLECULAR PROMEDIO RELATIVAMENTE BAJO PREDETERMINADO, ASI COMO LA DISTRIBUCION DE BAJO PESO MOLECULAR, SE PREPARA MEDIANTE LA SEPARACION PARCIAL DE UNA COMPOSICION DE BISCLOROFORMATO AROMATICO, PREFERIBLEMENTE UNA COMPOSICION DE BISCLOROFORMATO BISFENOL A, CON UN COMPUESTO MONOHIDROXIAROMATICO Y CONVIRTIENDO SUBSECUENTEMENTE LA COMPOSICION PARCIALMENTE SEPARADA EN UN POLICARBONATO, EMPELANDO UNA BASE QUE PROVEA UN PH EN EL RANGO DE 12 A 13. LA BASE PREFERIDA ES HIDROXIDO DE CALCIO, QUE ES SOLUBLE EN AGUA EN LA CANTIDAD PRECISAMENTE REQUERIDA PARA PROVEER EL PH DESEADO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/382,466 US4973664A (en) | 1989-07-20 | 1989-07-20 | Method for preparing polycarbonates of controlled molecular weight from bischloroformates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2083397T3 true ES2083397T3 (es) | 1996-04-16 |
Family
ID=23509072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES90111859T Expired - Lifetime ES2083397T3 (es) | 1989-07-20 | 1990-06-22 | Procedimiento para preparar policarbonatos de peso molecular controlado a partir de biscloroformiatos. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4973664A (es) |
| EP (1) | EP0408924B1 (es) |
| JP (1) | JP2659609B2 (es) |
| CA (1) | CA2012813A1 (es) |
| DE (1) | DE69025100T2 (es) |
| ES (1) | ES2083397T3 (es) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939230A (en) * | 1988-11-16 | 1990-07-03 | The Dow Chemical Company | Elimination of monocarbonate from polycarbonate |
| US5034505A (en) * | 1990-07-27 | 1991-07-23 | General Electric Company | Single-step method for preparing polycarbonates from bischloroformates |
| NL9001887A (nl) * | 1990-08-29 | 1992-03-16 | Gen Electric | Werkwijze voor de continue bereiding van aromatisch polycarbonaat met hoog molecuulgewicht. |
| WO1994018258A1 (en) * | 1991-07-02 | 1994-08-18 | The Dow Chemical Company | Process for preparing polycarbonate having reduced carbonate byproduct content |
| US5200496A (en) * | 1991-07-02 | 1993-04-06 | The Dow Chemical Company | Process for preparing polycarbonate having reduced carbonate byproduct content |
| US5426170A (en) * | 1992-12-02 | 1995-06-20 | Mitsui Toatsu Chemicals, Inc. | Method for preparing an aromatic polycarbonate |
| US5494997A (en) | 1994-08-01 | 1996-02-27 | General Electric Company | Preparation of by the bischloroformate process of soft segment polycarbonate |
| US7122613B1 (en) | 2002-12-20 | 2006-10-17 | General Electric Company | Method for the production of polycarbonates |
| FR2855933B1 (fr) * | 2003-06-06 | 2006-06-09 | Valeo Climatisation | Dispositif de chauffage electrique, notamment pour un vehicule automobile |
| JP5325677B2 (ja) * | 2009-06-30 | 2013-10-23 | 出光興産株式会社 | ウレタン結合含有ポリカーボネートの製造方法 |
| CN102532503B (zh) * | 2010-12-27 | 2014-02-19 | 青岛科技大学 | 一种聚碳酸酯制备方法 |
| JP7181006B2 (ja) * | 2018-06-01 | 2022-11-30 | 出光興産株式会社 | ポリカーボネート系樹脂及びその製造方法、並びにポリカーボネート系樹脂組成物 |
| EP3719052B1 (de) | 2019-04-03 | 2022-03-02 | Covestro Deutschland AG | Verfahren zur herstellung von polycarbonat mit reduziertem phosgenüberschuss |
| EP3719051B1 (de) * | 2019-04-03 | 2021-11-03 | Covestro Deutschland AG | Verfahren zur herstellung von polycarbonat-zugabezeitpunkt des kettenabbrechers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737573A (en) * | 1986-10-10 | 1988-04-12 | General Electric Company | Method for polymerizing aromatic bischloroformate composition to polycarbonate |
| US4743676A (en) * | 1987-05-07 | 1988-05-10 | General Electric Company | Method for preparing polycarbonate of controlled molecular weight from aromatic bischloroformate |
| US4994594A (en) * | 1988-02-29 | 1991-02-19 | General Electric Company | Oligomeric carbonate chainstoppers |
| EP0335214B1 (en) * | 1988-03-28 | 1993-12-08 | Idemitsu Petrochemical Co. Ltd. | Polycarbonate |
-
1989
- 1989-07-20 US US07/382,466 patent/US4973664A/en not_active Expired - Fee Related
-
1990
- 1990-03-22 CA CA002012813A patent/CA2012813A1/en not_active Abandoned
- 1990-06-22 ES ES90111859T patent/ES2083397T3/es not_active Expired - Lifetime
- 1990-06-22 DE DE69025100T patent/DE69025100T2/de not_active Expired - Fee Related
- 1990-06-22 EP EP90111859A patent/EP0408924B1/en not_active Revoked
- 1990-07-17 JP JP2187338A patent/JP2659609B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0408924A2 (en) | 1991-01-23 |
| EP0408924A3 (en) | 1992-03-04 |
| CA2012813A1 (en) | 1991-01-20 |
| DE69025100T2 (de) | 1996-08-29 |
| US4973664A (en) | 1990-11-27 |
| JP2659609B2 (ja) | 1997-09-30 |
| DE69025100D1 (de) | 1996-03-14 |
| JPH0388820A (ja) | 1991-04-15 |
| EP0408924B1 (en) | 1996-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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