ES362482A1 - Process for the preparation of Chlorinated Polyvinyl Chloride - Google Patents
Process for the preparation of Chlorinated Polyvinyl ChlorideInfo
- Publication number
- ES362482A1 ES362482A1 ES362482A ES362482A ES362482A1 ES 362482 A1 ES362482 A1 ES 362482A1 ES 362482 A ES362482 A ES 362482A ES 362482 A ES362482 A ES 362482A ES 362482 A1 ES362482 A1 ES 362482A1
- Authority
- ES
- Spain
- Prior art keywords
- aqueous suspension
- preparation
- chlorination
- dichloroethane
- polyvinyl chloride
- 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
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
Landscapes
- Chemical & Material Sciences (AREA)
- General 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
In the after-chlorination in aqueous suspension of PVC the polymer starting material chosen is one obtained by bulk or aqueous suspension polymerization in the presence of an acyl peroxide, has a K number measured in 1,2-dichloroethane of 50-80, a relative viscosity measured in 1,2-dichloroethane of 1À3-1À8, an apparent specific viscosity in the packed condition of 0À4-0À8 kg./dm.2 and being a white powder of particle size within the range 0À05-0À5 mm. Chlorination is effected in aqueous suspension, which may be as obtained from the polymerization, with a ratio of water to polymer of 1À6-5 by weight, by blowing in chlorine under a pressure of 2-10 kg./cm.2 and increasing the temperature continuously from 35-80 C. the reaction time is 5-20 hours.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6800992A NL6800992A (en) | 1968-01-23 | 1968-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES362482A1 true ES362482A1 (en) | 1970-12-01 |
Family
ID=19802568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES362482A Expired ES362482A1 (en) | 1968-01-23 | 1969-01-14 | Process for the preparation of Chlorinated Polyvinyl Chloride |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT290127B (en) |
| BE (1) | BE726839A (en) |
| BR (1) | BR6905829D0 (en) |
| CH (1) | CH490430A (en) |
| DE (1) | DE1817523A1 (en) |
| DK (1) | DK121473B (en) |
| ES (1) | ES362482A1 (en) |
| FR (1) | FR2000575A1 (en) |
| GB (1) | GB1186847A (en) |
| NL (1) | NL6800992A (en) |
| SE (1) | SE345278B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU543448B2 (en) * | 1980-08-26 | 1985-04-18 | B.F. Goodrich Company, The | Process for chlorination of pvc in water without use of swelling agents |
| US4412898A (en) | 1980-08-26 | 1983-11-01 | The B.F. Goodrich Company | Process for chlorination of PVC in water without use of swelling agents |
| EP3172245A4 (en) * | 2014-07-22 | 2018-02-14 | Reliance Industries Limited | A process for manufacturing chlorinated polyvinylchloride |
| FR3136362A1 (en) | 2022-06-14 | 2023-12-15 | Institut Mines Telecom | Instrumented scleral lens and associated device, embedded in the lens or not, for measuring the pupil diameter of an eye. |
-
1968
- 1968-01-23 NL NL6800992A patent/NL6800992A/xx unknown
- 1968-12-19 CH CH1898068A patent/CH490430A/en not_active IP Right Cessation
- 1968-12-31 DE DE19681817523 patent/DE1817523A1/en active Pending
-
1969
- 1969-01-06 GB GB70769A patent/GB1186847A/en not_active Expired
- 1969-01-14 ES ES362482A patent/ES362482A1/en not_active Expired
- 1969-01-14 BE BE726839A patent/BE726839A/en unknown
- 1969-01-17 FR FR6900855A patent/FR2000575A1/en not_active Withdrawn
- 1969-01-21 AT AT62569A patent/AT290127B/en not_active IP Right Cessation
- 1969-01-22 DK DK34669A patent/DK121473B/en unknown
- 1969-01-22 SE SE84269A patent/SE345278B/xx unknown
- 1969-01-23 BR BR20582969A patent/BR6905829D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1817523A1 (en) | 1969-07-31 |
| NL6800992A (en) | 1969-07-25 |
| GB1186847A (en) | 1970-04-08 |
| AT290127B (en) | 1971-05-25 |
| BR6905829D0 (en) | 1973-01-04 |
| SE345278B (en) | 1972-05-23 |
| BE726839A (en) | 1969-07-14 |
| CH490430A (en) | 1970-05-15 |
| DK121473B (en) | 1971-10-18 |
| FR2000575A1 (en) | 1969-09-12 |
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