FR2376871A1 - Procede de polymerisation radicalaire a deux stades thermiquement distincts de polymerisation a l'aide de melanges d'amorceurs - Google Patents
Procede de polymerisation radicalaire a deux stades thermiquement distincts de polymerisation a l'aide de melanges d'amorceursInfo
- Publication number
- FR2376871A1 FR2376871A1 FR7733945A FR7733945A FR2376871A1 FR 2376871 A1 FR2376871 A1 FR 2376871A1 FR 7733945 A FR7733945 A FR 7733945A FR 7733945 A FR7733945 A FR 7733945A FR 2376871 A1 FR2376871 A1 FR 2376871A1
- Authority
- FR
- France
- Prior art keywords
- polymerization
- primers
- mixtures
- separate stages
- radical polymerization
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/28—Oxygen or compounds releasing free oxygen
- C08F4/32—Organic compounds
- C08F4/38—Mixtures of peroxy-compounds
Abstract
L'invention décrit un procédé de polymérisation radicalaire de monomères vinyl-aromatiques en au moins deux stades de polymérisation à des températures distinctes comprises entre environ 70 degrés C et 150 degrés C en présence d'au moins deux amorceurs de radicaux libres. L'un de ces amorceurs, surtout efficace à la température la plus faible, a pour formule :
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/757,186 US4129703A (en) | 1977-01-06 | 1977-01-06 | Free-radical polymerizations using mixed initiator systems at two thermally distinct polymerization stages |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2376871A1 true FR2376871A1 (fr) | 1978-08-04 |
FR2376871B1 FR2376871B1 (fr) | 1984-01-27 |
Family
ID=25046758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7733945A Granted FR2376871A1 (fr) | 1977-01-06 | 1977-11-10 | Procede de polymerisation radicalaire a deux stades thermiquement distincts de polymerisation a l'aide de melanges d'amorceurs |
Country Status (7)
Country | Link |
---|---|
US (1) | US4129703A (fr) |
JP (1) | JPS5385880A (fr) |
CA (1) | CA1072245A (fr) |
DE (1) | DE2749519A1 (fr) |
FR (1) | FR2376871A1 (fr) |
GB (1) | GB1588877A (fr) |
NL (1) | NL7711670A (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4396737A (en) * | 1981-11-19 | 1983-08-02 | Ppg Industries, Inc. | Polymerization of polyol allyl carbonate using polymerization initiators of short and long half lives |
US4962147A (en) * | 1988-05-26 | 1990-10-09 | Hoechst Celanese Corporation | Process for the suspension polymerization of 4-acetoxystyrene and hydrolysis to 4-hydroxystyrene polymers |
CA2019626C (fr) * | 1989-06-30 | 1994-11-22 | Yuichi Arito | Resine de type styrene et methode de preparation |
US5274029A (en) * | 1990-09-10 | 1993-12-28 | Kelley Joseph M | Styrene polymerization process |
CA2063473C (fr) * | 1991-07-01 | 1998-09-22 | T. Hwee Ng | Procede de preparation de copolymeres |
CA2115587A1 (fr) * | 1993-02-18 | 1994-08-19 | Hayato Kihara | Copolymeres de styrene, compositions de polystyrene, procedes pour la production de copolymeres de styrene, et articles moules par injection |
US6037428A (en) * | 1997-04-25 | 2000-03-14 | Shin-Etsu Chemical Co., Ltd. | Polymerization of vinyl chloride with peroxide mixtures |
US5972329A (en) * | 1997-05-16 | 1999-10-26 | Isp Investments Inc. | Fixative polymers |
DE19749570A1 (de) * | 1997-11-10 | 1999-05-12 | Basf Ag | Verfahren zur Herstellung von expandierbaren Styrolpolymerisaten |
NZ548792A (en) * | 2004-01-30 | 2009-10-30 | Orica Australia Pty Ltd | Suspension polymerisation process utilising a combination of peroxide initiators |
KR100877577B1 (ko) * | 2006-12-26 | 2009-01-08 | 제일모직주식회사 | 광학용 방향족 비닐계 열가소성 수지 및 그 제조방법 |
EP2212357A1 (fr) * | 2007-11-20 | 2010-08-04 | Akzo Nobel N.V. | Procédé de préparation de (co)polymères à base de styrène |
EP3750929A1 (fr) * | 2019-06-12 | 2020-12-16 | Trinseo Europe GmbH | Polymères styréniques ayant une faible teneur en trimère |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3265274A (en) * | 1964-07-30 | 1966-08-09 | Vernon G Burnell | Pamphlet assembly and stapling machine |
GB1186835A (en) * | 1967-08-29 | 1970-04-08 | Noury & Van Der Lande | Improvements in or relating to the Peroxidic Homopolymerisation or Copolymerization of Vinyl Monomers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2656334A (en) * | 1948-09-28 | 1953-10-20 | Koppers Co Inc | Catalytic polymerization process |
BE575339A (fr) * | 1958-02-03 | |||
US3222341A (en) * | 1961-08-01 | 1965-12-07 | Monsanto Co | Process for polymerizing styrene |
NL137858C (fr) * | 1962-05-17 | |||
US3293233A (en) * | 1963-04-09 | 1966-12-20 | Rexall Drug Chemical | Process for polymerizing ethylene at high pressures in the presence of a mixture of peroxides having different half lives |
GB1243197A (en) * | 1968-01-18 | 1971-08-18 | British Petroleum Co | Polymerisation process |
US3817965A (en) * | 1968-02-27 | 1974-06-18 | Aquitaine Petrole | Polymerization of vinyl compounds in suspension |
GB1252153A (fr) * | 1968-04-30 | 1971-11-03 |
-
1977
- 1977-01-06 US US05/757,186 patent/US4129703A/en not_active Expired - Lifetime
- 1977-10-13 CA CA288,600A patent/CA1072245A/fr not_active Expired
- 1977-10-25 NL NL7711670A patent/NL7711670A/xx not_active Application Discontinuation
- 1977-11-04 DE DE19772749519 patent/DE2749519A1/de not_active Withdrawn
- 1977-11-10 FR FR7733945A patent/FR2376871A1/fr active Granted
- 1977-11-24 GB GB48998/77A patent/GB1588877A/en not_active Expired
-
1978
- 1978-01-05 JP JP5178A patent/JPS5385880A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3265274A (en) * | 1964-07-30 | 1966-08-09 | Vernon G Burnell | Pamphlet assembly and stapling machine |
GB1186835A (en) * | 1967-08-29 | 1970-04-08 | Noury & Van Der Lande | Improvements in or relating to the Peroxidic Homopolymerisation or Copolymerization of Vinyl Monomers |
US3585176A (en) * | 1967-08-29 | 1971-06-15 | Noury & Van Der Lande | Process for the peroxidic homopolymerization or copolymerization of vinyl monomers |
Also Published As
Publication number | Publication date |
---|---|
JPS5385880A (en) | 1978-07-28 |
GB1588877A (en) | 1981-04-29 |
DE2749519A1 (de) | 1978-07-13 |
CA1072245A (fr) | 1980-02-19 |
FR2376871B1 (fr) | 1984-01-27 |
NL7711670A (nl) | 1978-07-10 |
US4129703A (en) | 1978-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
BR | Restoration of rights | ||
ST | Notification of lapse |