IT1259780B - METHOD FOR THE PRODUCTION OF WATER DISPERSION OF OIL-SOLUBLE ORGANIC PEROXIDES TO BE USED FOR THE PRODUCTION OF POLYVINYL CHLORIDE IN AQUEOUS SUSPENSION - Google Patents
METHOD FOR THE PRODUCTION OF WATER DISPERSION OF OIL-SOLUBLE ORGANIC PEROXIDES TO BE USED FOR THE PRODUCTION OF POLYVINYL CHLORIDE IN AQUEOUS SUSPENSIONInfo
- Publication number
- IT1259780B IT1259780B ITUD920188A ITUD920188A IT1259780B IT 1259780 B IT1259780 B IT 1259780B IT UD920188 A ITUD920188 A IT UD920188A IT UD920188 A ITUD920188 A IT UD920188A IT 1259780 B IT1259780 B IT 1259780B
- Authority
- IT
- Italy
- Prior art keywords
- production
- oil
- polyvinyl chloride
- aqueous suspension
- organic peroxides
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 150000001451 organic peroxides Chemical class 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 239000007900 aqueous suspension Substances 0.000 title abstract 2
- 239000006185 dispersion Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229920000915 polyvinyl chloride Polymers 0.000 title abstract 2
- 239000004800 polyvinyl chloride Substances 0.000 title abstract 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 6
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 abstract 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- 238000007127 saponification reaction Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000011859 microparticle Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000375 suspending agent Substances 0.000 abstract 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Metodo per la produzione di dispersione acquosa di perossidi organici oleosolubili da utilizzarsi per la produzione di polivinilcloruro in sospensione acquosa, mediante l'uso di perossido organico disciolto in solvente, caratterizzato dal fatto che:? Il solvente utilizzato è il metilacetato o etilacetato;? La soluzione di metilacetato o etilacetato di perossido organico viene additivata sotto forte agitazione ad un sospendente secondario sotto forma di emulsione acquosa di alcooli polivinilici parzialmente idrolizzati aventi:- una frazione di alcool polivinilico con numero di saponificazione compreso tra 598 e 312 dispersa sotto forma di microparticelle insolubili in acqua ed - una frazione in uno o più alcooli polivinilici aventi un numero di saponificazione compreso tra 290 e 50 solubile in acqua.? Detta soluzione viene distillata sotto vuoto per l'estrazione di tutto il solvente presente, ottenendosi una emulsione acquosa di aspetto lattescente stabile.Method for the production of aqueous dispersion of oil-soluble organic peroxides to be used for the production of polyvinyl chloride in aqueous suspension, through the use of organic peroxide dissolved in solvent, characterized in that: The solvent used is methyl acetate or ethyl acetate; The solution of methyl acetate or ethyl acetate of organic peroxide is added under strong stirring to a secondary suspending agent in the form of an aqueous emulsion of partially hydrolyzed polyvinyl alcohol having: - a fraction of polyvinyl alcohol with a saponification number between 598 and 312 dispersed in the form of microparticles insoluble in water and - a fraction in one or more polyvinyl alcohols having a saponification number between 290 and 50 soluble in water. Said solution is distilled under vacuum for the extraction of all the solvent present, obtaining an aqueous emulsion with a stable milky appearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUD920188A IT1259780B (en) | 1992-12-24 | 1992-12-24 | METHOD FOR THE PRODUCTION OF WATER DISPERSION OF OIL-SOLUBLE ORGANIC PEROXIDES TO BE USED FOR THE PRODUCTION OF POLYVINYL CHLORIDE IN AQUEOUS SUSPENSION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUD920188A IT1259780B (en) | 1992-12-24 | 1992-12-24 | METHOD FOR THE PRODUCTION OF WATER DISPERSION OF OIL-SOLUBLE ORGANIC PEROXIDES TO BE USED FOR THE PRODUCTION OF POLYVINYL CHLORIDE IN AQUEOUS SUSPENSION |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITUD920188A0 ITUD920188A0 (en) | 1992-12-24 |
| ITUD920188A1 ITUD920188A1 (en) | 1994-06-24 |
| IT1259780B true IT1259780B (en) | 1996-03-26 |
Family
ID=11421192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITUD920188A IT1259780B (en) | 1992-12-24 | 1992-12-24 | METHOD FOR THE PRODUCTION OF WATER DISPERSION OF OIL-SOLUBLE ORGANIC PEROXIDES TO BE USED FOR THE PRODUCTION OF POLYVINYL CHLORIDE IN AQUEOUS SUSPENSION |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1259780B (en) |
-
1992
- 1992-12-24 IT ITUD920188A patent/IT1259780B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| ITUD920188A0 (en) | 1992-12-24 |
| ITUD920188A1 (en) | 1994-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971126 |