CH612691A5 - Process for the polymerisation of vinyl chloride in aqueous suspension - Google Patents
Process for the polymerisation of vinyl chloride in aqueous suspensionInfo
- Publication number
- CH612691A5 CH612691A5 CH305276A CH305276A CH612691A5 CH 612691 A5 CH612691 A5 CH 612691A5 CH 305276 A CH305276 A CH 305276A CH 305276 A CH305276 A CH 305276A CH 612691 A5 CH612691 A5 CH 612691A5
- Authority
- CH
- Switzerland
- Prior art keywords
- polymerisation
- vinyl chloride
- aqueous suspension
- monobasic
- initiators
- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/24—Treatment of polymer suspensions
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)
- Polymerisation Methods In General (AREA)
- Polymerization Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The polymerisation of vinyl chloride in aqueous suspension is carried out in the presence of dialkyl peroxydicarbonates employed as initiators. In order to improve the initial heat stability of the polymers, the polymer present in aqueous suspension is treated with a monobasic hydroxide at the end of polymerisation but before degassing which is intended to remove the unconverted vinyl chloride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7516579A FR2312514A1 (en) | 1975-05-26 | 1975-05-26 | PROCESS FOR THE POLYMERIZATION OF VINYL CHLORIDE IN AQUEOUS SUSPENSION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH612691A5 true CH612691A5 (en) | 1979-08-15 |
Family
ID=9155753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH305276A CH612691A5 (en) | 1975-05-26 | 1976-03-11 | Process for the polymerisation of vinyl chloride in aqueous suspension |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS605607B2 (en) |
| AT (1) | AT354085B (en) |
| BE (1) | BE842139A (en) |
| BR (1) | BR7603310A (en) |
| CA (1) | CA1091396A (en) |
| CH (1) | CH612691A5 (en) |
| DE (1) | DE2619877A1 (en) |
| ES (1) | ES448211A1 (en) |
| FI (1) | FI61499C (en) |
| FR (1) | FR2312514A1 (en) |
| GB (1) | GB1496848A (en) |
| IT (1) | IT1060867B (en) |
| NL (1) | NL184365C (en) |
| NO (1) | NO148152C (en) |
| PT (1) | PT64986B (en) |
| SE (1) | SE426395B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505238A1 (en) * | 1985-02-15 | 1986-08-21 | Hoechst Ag, 6230 Frankfurt | Process for the preparation of dry vinyl chloride suspension polymers |
| JPH0530643Y2 (en) * | 1985-12-19 | 1993-08-05 | ||
| JPS63179903U (en) * | 1987-05-15 | 1988-11-21 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA865802A (en) * | 1971-03-09 | Esso Research And Engineering Company | Vinyl chloride homo- and copolymers stability | |
| NL136294C (en) * | 1968-04-24 | |||
| US3720700A (en) * | 1969-11-14 | 1973-03-13 | Kema Nord Ab | Di-cetyl peroxy dicarbonate |
| IT989178B (en) * | 1972-07-19 | 1975-05-20 | Solvay | PROCEDURE TO ELIMINATE RESIDUAL VINYL CHLORIDE PRESENT IN POLI MERI |
-
1975
- 1975-05-26 FR FR7516579A patent/FR2312514A1/en active Granted
-
1976
- 1976-03-11 CH CH305276A patent/CH612691A5/en not_active IP Right Cessation
- 1976-04-08 PT PT64986A patent/PT64986B/en unknown
- 1976-05-05 DE DE19762619877 patent/DE2619877A1/en active Granted
- 1976-05-05 CA CA251,871A patent/CA1091396A/en not_active Expired
- 1976-05-07 GB GB18785/76A patent/GB1496848A/en not_active Expired
- 1976-05-11 FI FI761324A patent/FI61499C/en not_active IP Right Cessation
- 1976-05-20 JP JP51057345A patent/JPS605607B2/en not_active Expired
- 1976-05-24 BE BE1007407A patent/BE842139A/en not_active IP Right Cessation
- 1976-05-25 ES ES448211A patent/ES448211A1/en not_active Expired
- 1976-05-25 AT AT382776A patent/AT354085B/en not_active IP Right Cessation
- 1976-05-25 SE SE7605923A patent/SE426395B/en not_active IP Right Cessation
- 1976-05-25 NO NO76761778A patent/NO148152C/en unknown
- 1976-05-26 NL NLAANVRAGE7605686,A patent/NL184365C/en not_active IP Right Cessation
- 1976-05-26 BR BR3310/76A patent/BR7603310A/en unknown
- 1976-05-26 IT IT23709/76A patent/IT1060867B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| NL7605686A (en) | 1976-11-30 |
| PT64986A (en) | 1976-05-01 |
| ATA382776A (en) | 1979-05-15 |
| FR2312514B1 (en) | 1977-12-09 |
| ES448211A1 (en) | 1977-07-01 |
| GB1496848A (en) | 1978-01-05 |
| SE7605923L (en) | 1976-11-27 |
| DE2619877A1 (en) | 1976-12-16 |
| FI761324A (en) | 1976-11-27 |
| NO148152C (en) | 1983-08-17 |
| FI61499C (en) | 1982-08-10 |
| NL184365B (en) | 1989-02-01 |
| PT64986B (en) | 1977-09-07 |
| BE842139A (en) | 1976-11-24 |
| FR2312514A1 (en) | 1976-12-24 |
| FI61499B (en) | 1982-04-30 |
| NO761778L (en) | 1976-11-29 |
| SE426395B (en) | 1983-01-17 |
| NL184365C (en) | 1989-07-03 |
| BR7603310A (en) | 1976-12-07 |
| JPS605607B2 (en) | 1985-02-13 |
| AT354085B (en) | 1979-12-27 |
| DE2619877C2 (en) | 1988-05-26 |
| JPS51144478A (en) | 1976-12-11 |
| IT1060867B (en) | 1982-09-30 |
| NO148152B (en) | 1983-05-09 |
| CA1091396A (en) | 1980-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |