GB1013688A - Production of polymethyl methacrylate - Google Patents
Production of polymethyl methacrylateInfo
- Publication number
- GB1013688A GB1013688A GB2804/62A GB280462A GB1013688A GB 1013688 A GB1013688 A GB 1013688A GB 2804/62 A GB2804/62 A GB 2804/62A GB 280462 A GB280462 A GB 280462A GB 1013688 A GB1013688 A GB 1013688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- production
- polymerization
- until
- methyl methacrylate
- 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
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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/12—Esters of monohydric alcohols or phenols
- C08F20/14—Methyl esters, e.g. methyl (meth)acrylate
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/02—Polymerisation in bulk
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
A process for the production of polymers of methyl methacrylate or copolymers thereof with aromatic vinyl hydrocarbons comprises (1) heating methyl methacrylate or a mixture thereof with up to 50% by weight of an aromatic vinyl hydrocarbon in the presence of free radicals at 50 DEG to 90 DEG C. until at least 20% of the monomeric material has undergone conversion by both polymerization, (2) controlling the temperature of the polymerizing mass to ensure that the temperature does not exceed 160 DEG C. until the exothermic action has subsided and (3) completing the polymerization at a temperature between 115-160 DEG C. The usual free radical initiators are used. After the first stage the reaction mass may be transferred to another vessel, or series of vessels which all have cooling means. Chain transfer agents may be employed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2804/62A GB1013688A (en) | 1962-01-25 | 1962-01-25 | Production of polymethyl methacrylate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2804/62A GB1013688A (en) | 1962-01-25 | 1962-01-25 | Production of polymethyl methacrylate |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1013688A true GB1013688A (en) | 1965-12-15 |
Family
ID=9746241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2804/62A Expired GB1013688A (en) | 1962-01-25 | 1962-01-25 | Production of polymethyl methacrylate |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1013688A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2844754A1 (en) | 1977-10-14 | 1979-04-26 | Du Pont | OPTICAL FIBER WITH LOW ATTENUATION |
US4152506A (en) * | 1978-04-26 | 1979-05-01 | E. I. Du Pont De Nemours And Company | Preparation of thermoformable methyl methacrylate sheets |
WO1997033925A1 (en) * | 1996-03-13 | 1997-09-18 | Röhm Gmbh | Multi-stage process for producing heat resistant dimensionally stable polymethacrylate moulding compounds |
WO2004072131A1 (en) * | 2003-02-14 | 2004-08-26 | List Holding Ag | Method for carrying out a mass polymerisation |
-
1962
- 1962-01-25 GB GB2804/62A patent/GB1013688A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2844754A1 (en) | 1977-10-14 | 1979-04-26 | Du Pont | OPTICAL FIBER WITH LOW ATTENUATION |
DE2858225C2 (en) * | 1977-10-14 | 1988-03-31 | Mitsubishi Rayon Co., Ltd., Tokio/Tokyo, Jp | |
US4152506A (en) * | 1978-04-26 | 1979-05-01 | E. I. Du Pont De Nemours And Company | Preparation of thermoformable methyl methacrylate sheets |
WO1997033925A1 (en) * | 1996-03-13 | 1997-09-18 | Röhm Gmbh | Multi-stage process for producing heat resistant dimensionally stable polymethacrylate moulding compounds |
DE19609715A1 (en) * | 1996-03-13 | 1997-09-18 | Roehm Gmbh | Multi-stage process for the production of highly heat-resistant polymethacrylate molding compounds |
DE19609715C2 (en) * | 1996-03-13 | 1998-10-08 | Roehm Gmbh | Multi-stage process for the production of highly heat-resistant polymethacrylate molding compounds |
US6214942B1 (en) | 1996-03-13 | 2001-04-10 | Roehm Gmbh | Multi-stage process for producing heat resistant dimensionally stable polymethacrylate moulding compounds |
WO2004072131A1 (en) * | 2003-02-14 | 2004-08-26 | List Holding Ag | Method for carrying out a mass polymerisation |
CN1330676C (en) * | 2003-02-14 | 2007-08-08 | 利斯特股份公司 | Method for carrying out a mass polymerisation |
US7732538B2 (en) | 2003-02-14 | 2010-06-08 | List Holding Ag | Method for carrying out a mass polymerization |
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