SE8007331L - METHOD OF PROCEDURE FOR PREPARATION OF POLYVINYL CHLORIDE RESIN BY PEARL POLYMERIZATION - Google Patents
METHOD OF PROCEDURE FOR PREPARATION OF POLYVINYL CHLORIDE RESIN BY PEARL POLYMERIZATIONInfo
- Publication number
- SE8007331L SE8007331L SE8007331A SE8007331A SE8007331L SE 8007331 L SE8007331 L SE 8007331L SE 8007331 A SE8007331 A SE 8007331A SE 8007331 A SE8007331 A SE 8007331A SE 8007331 L SE8007331 L SE 8007331L
- Authority
- SE
- Sweden
- Prior art keywords
- reactor walls
- polymerization
- organic
- alkali metal
- ammonium salt
- Prior art date
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
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides means for preventing polymer scale deposition on the reactor walls during the suspension polymerization of vinyl chloride monomer in an aqueous medium.The method of the invention comprises (a) coating of the reactor walls, prior to polymerization, with an aqueous coating solution containing an organic dye having sulfonic acid groups or carboxylic acid groups in the alkali metal or ammonium salt form or an alkali metal or ammonium salt of an organic sulfonic acid or carboxylic acid having at least one pair of conjugated double bonds per molecule, followed by drying, and (b) adding a water-soluble thiocyanate to the polymerization mixture. Previously, the use of an organic peroxide with a relatively large solubility in water as initiator in the reaction had led to large scale deposition on the reactor walls but this is avoided under the conditions specified above. Use of such an organic peroxide is advantageous in improving the thermal stability and initial colouring of the resin products.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54136262A JPS606361B2 (en) | 1979-10-22 | 1979-10-22 | Polymerization method of vinyl chloride monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE8007331L true SE8007331L (en) | 1981-04-23 |
Family
ID=15171066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8007331A SE8007331L (en) | 1979-10-22 | 1980-10-20 | METHOD OF PROCEDURE FOR PREPARATION OF POLYVINYL CHLORIDE RESIN BY PEARL POLYMERIZATION |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS606361B2 (en) |
| AT (1) | AT369755B (en) |
| BE (1) | BE885813A (en) |
| BR (1) | BR8006772A (en) |
| CA (1) | CA1193394A (en) |
| CH (1) | CH645392A5 (en) |
| CU (1) | CU21471A (en) |
| DE (1) | DE3039543A1 (en) |
| DK (1) | DK443880A (en) |
| ES (1) | ES8107254A1 (en) |
| FR (1) | FR2467860B1 (en) |
| GB (1) | GB2061980B (en) |
| HU (1) | HU191809B (en) |
| IN (1) | IN151895B (en) |
| IT (1) | IT1133972B (en) |
| MX (1) | MX155347A (en) |
| NL (1) | NL8005812A (en) |
| NO (1) | NO803099L (en) |
| PL (1) | PL227440A1 (en) |
| PT (1) | PT71944B (en) |
| SE (1) | SE8007331L (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176245A (en) * | 1986-01-29 | 1987-08-03 | Sekisui Chem Co Ltd | Telephone set |
| JPS62219736A (en) * | 1986-03-19 | 1987-09-28 | Matsushita Electric Works Ltd | Telephone set switching device |
| JPS62219737A (en) * | 1986-03-19 | 1987-09-28 | Matsushita Electric Works Ltd | Telephone set switching device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093788A (en) * | 1974-06-24 | 1978-06-06 | Stauffer Chemical Company | Method for the preparation of polyvinyl chloride by suspension or emulsion polymerization |
| JPS5212291A (en) * | 1975-07-18 | 1977-01-29 | Shin Etsu Chem Co Ltd | Process for polymerizing vinyl chloride |
| JPS5214688A (en) * | 1975-07-24 | 1977-02-03 | Shin Etsu Chem Co Ltd | A process for polymerizing vinyl chloride |
| JPS5224070A (en) * | 1975-08-19 | 1977-02-23 | Toshiba Corp | Productio method of magnetron anode |
| JPS5224953A (en) * | 1975-08-22 | 1977-02-24 | Osaka Transformer Co Ltd | Arc welding machine |
| JPS5228347A (en) * | 1975-08-29 | 1977-03-03 | Nippon Kogaku Kk <Nikon> | Position detector unit |
| LU76676A1 (en) * | 1977-02-01 | 1978-09-13 | ||
| JPS548690A (en) * | 1977-06-20 | 1979-01-23 | Goodrich Co B F | Method of preventing polymer from adhering on inner surface of polymerization reactor |
-
1979
- 1979-10-22 JP JP54136262A patent/JPS606361B2/en not_active Expired
-
1980
- 1980-10-14 IN IN1167/CAL/80A patent/IN151895B/en unknown
- 1980-10-17 NO NO803099A patent/NO803099L/en unknown
- 1980-10-17 CA CA000362647A patent/CA1193394A/en not_active Expired
- 1980-10-20 DK DK443880A patent/DK443880A/en not_active Application Discontinuation
- 1980-10-20 GB GB8033747A patent/GB2061980B/en not_active Expired
- 1980-10-20 DE DE19803039543 patent/DE3039543A1/en not_active Withdrawn
- 1980-10-20 SE SE8007331A patent/SE8007331L/en unknown
- 1980-10-21 PT PT71944A patent/PT71944B/en unknown
- 1980-10-21 MX MX184414A patent/MX155347A/en unknown
- 1980-10-21 BE BE0/202545A patent/BE885813A/en not_active IP Right Cessation
- 1980-10-21 BR BR8006772A patent/BR8006772A/en unknown
- 1980-10-21 ES ES496127A patent/ES8107254A1/en not_active Expired
- 1980-10-21 FR FR8022441A patent/FR2467860B1/en not_active Expired
- 1980-10-21 CU CU35339A patent/CU21471A/en unknown
- 1980-10-21 IT IT25487/80A patent/IT1133972B/en active
- 1980-10-22 PL PL22744080A patent/PL227440A1/xx unknown
- 1980-10-22 NL NL8005812A patent/NL8005812A/en not_active Application Discontinuation
- 1980-10-22 AT AT0521080A patent/AT369755B/en not_active IP Right Cessation
- 1980-10-22 HU HU802567A patent/HU191809B/en unknown
- 1980-10-22 CH CH788080A patent/CH645392A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH645392A5 (en) | 1984-09-28 |
| CU21471A (en) | 1983-10-04 |
| ES496127A0 (en) | 1981-10-01 |
| GB2061980B (en) | 1983-06-29 |
| NL8005812A (en) | 1981-04-24 |
| ES8107254A1 (en) | 1981-10-01 |
| JPS606361B2 (en) | 1985-02-18 |
| FR2467860B1 (en) | 1985-11-15 |
| JPS5659808A (en) | 1981-05-23 |
| MX155347A (en) | 1988-02-22 |
| PT71944B (en) | 1981-08-31 |
| IT8025487A0 (en) | 1980-10-21 |
| ATA521080A (en) | 1982-06-15 |
| BE885813A (en) | 1981-02-16 |
| CA1193394A (en) | 1985-09-10 |
| IT1133972B (en) | 1986-07-24 |
| NO803099L (en) | 1981-04-23 |
| PT71944A (en) | 1980-11-01 |
| AT369755B (en) | 1983-01-25 |
| GB2061980A (en) | 1981-05-20 |
| PL227440A1 (en) | 1981-07-10 |
| DK443880A (en) | 1981-04-23 |
| IN151895B (en) | 1983-08-27 |
| FR2467860A1 (en) | 1981-04-30 |
| DE3039543A1 (en) | 1981-09-10 |
| BR8006772A (en) | 1981-04-28 |
| HU191809B (en) | 1987-04-28 |
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