IT1040659B - PROCEDURE FOR THE PRODUCTION OF POLYVINYL CHLORIDE WITH LOW VINYL CHLORIDE AND PRODUCT OBTAINED - Google Patents
PROCEDURE FOR THE PRODUCTION OF POLYVINYL CHLORIDE WITH LOW VINYL CHLORIDE AND PRODUCT OBTAINEDInfo
- Publication number
- IT1040659B IT1040659B IT50131/75A IT5013175A IT1040659B IT 1040659 B IT1040659 B IT 1040659B IT 50131/75 A IT50131/75 A IT 50131/75A IT 5013175 A IT5013175 A IT 5013175A IT 1040659 B IT1040659 B IT 1040659B
- Authority
- IT
- Italy
- Prior art keywords
- latex
- vinyl chloride
- slurry
- degree
- chloride
- 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
- C08F6/001—Removal of residual monomers by physical means
- C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to a novel process for the production of polyvinyl chloride having a low vinyl chloride monomer content, the latter being removed from a slurry or latex which result from polymerization of vinyl chloride in aqueous media. In the novel process vinyl chloride is removed from a slurry or latex that contains from about 1000 parts to 15,000 parts by weight of vinyl chloride per million parts by weight of the slurry or latex and from 5% to 50% by weight of a polymer selected from the group consisting of polyvinyl chloride and copolymers of vinyl chloride with at least one monomer copolymerizable therewith that comprises a) heating said slurry or latex at a temperature in the range of 70.degree.C. to 125.degree.C.or contacting the slurry or latex with at least one organic liquid at a temperature in the range of 25.degree.C. to 125.degree.C.and b) removing vinyl chloride vapor from the slurry or latex. The resultant aqueous slurry or latex and final polymer product has reduced carcinogenicity.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48211374A | 1974-06-24 | 1974-06-24 | |
US48211274A | 1974-06-24 | 1974-06-24 | |
US05/482,115 US4015064A (en) | 1974-06-24 | 1974-06-24 | Manufacture of polyvinyl chloride of low vinyl chloride monomer content |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1040659B true IT1040659B (en) | 1979-12-20 |
Family
ID=27413601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50131/75A IT1040659B (en) | 1974-06-24 | 1975-06-19 | PROCEDURE FOR THE PRODUCTION OF POLYVINYL CHLORIDE WITH LOW VINYL CHLORIDE AND PRODUCT OBTAINED |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS6037125B2 (en) |
AU (1) | AU497851B2 (en) |
BR (1) | BR7503870A (en) |
CA (1) | CA1280532C (en) |
DE (1) | DE2527583A1 (en) |
FR (1) | FR2276324A1 (en) |
IL (1) | IL47420A (en) |
IT (1) | IT1040659B (en) |
NL (1) | NL7507527A (en) |
NO (1) | NO148781C (en) |
SE (2) | SE419650B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4220754A (en) * | 1976-05-25 | 1980-09-02 | Tenneco Chemicals, Inc. | Process for the purification of polyvinyl chloride with oxidizing agents |
US4228273A (en) * | 1978-09-05 | 1980-10-14 | Tenneco Chemicals, Inc. | Process for the removal of vinyl chloride from aqueous dispersions of vinyl chloride resins |
JPS6234717U (en) * | 1985-08-19 | 1987-02-28 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662867A (en) * | 1951-03-29 | 1953-12-15 | Goodrich Co B F | Method of stabilizing aqueous dispersions of haloethylene polymers |
NL221427A (en) * | 1956-10-09 | |||
BE579094A (en) * | 1958-05-30 | |||
BE668137A (en) * | 1965-08-11 | 1966-02-11 | ||
IT989178B (en) * | 1972-07-19 | 1975-05-20 | Solvay | PROCEDURE TO ELIMINATE RESIDUAL VINYL CHLORIDE PRESENT IN POLI MERI |
DE2429777B2 (en) * | 1974-06-21 | 1981-04-02 | Hoechst Ag, 6000 Frankfurt | Process for the removal of non-unsettled, residual vinyl chloride from aqueous dispersions of vinyl chloride polymers |
-
1975
- 1975-06-03 IL IL47420A patent/IL47420A/en unknown
- 1975-06-19 IT IT50131/75A patent/IT1040659B/en active
- 1975-06-20 DE DE19752527583 patent/DE2527583A1/en active Granted
- 1975-06-20 BR BR4977/75D patent/BR7503870A/en unknown
- 1975-06-23 FR FR7519560A patent/FR2276324A1/en active Granted
- 1975-06-23 JP JP50075805A patent/JPS6037125B2/en not_active Expired
- 1975-06-23 AU AU82346/75A patent/AU497851B2/en not_active Ceased
- 1975-06-23 CA CA000229921A patent/CA1280532C/en not_active Expired - Lifetime
- 1975-06-23 SE SE7507163A patent/SE419650B/en unknown
- 1975-06-24 NO NO752251A patent/NO148781C/en unknown
- 1975-06-24 NL NL7507527A patent/NL7507527A/en not_active Application Discontinuation
-
1979
- 1979-03-28 SE SE7902777A patent/SE425909B/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7507527A (en) | 1975-12-30 |
AU8234675A (en) | 1977-01-06 |
DE2527583A1 (en) | 1976-01-15 |
DE2527583C2 (en) | 1989-05-24 |
FR2276324B1 (en) | 1979-04-13 |
CA1280532C (en) | 1991-02-19 |
SE419650B (en) | 1981-08-17 |
SE425909B (en) | 1982-11-22 |
AU497851B2 (en) | 1979-01-18 |
NO148781B (en) | 1983-09-05 |
NO148781C (en) | 1983-12-14 |
JPS6037125B2 (en) | 1985-08-24 |
IL47420A (en) | 1978-07-31 |
JPS5117288A (en) | 1976-02-12 |
BR7503870A (en) | 1976-07-06 |
SE7902777L (en) | 1979-03-28 |
FR2276324A1 (en) | 1976-01-23 |
NO752251L (en) | 1975-12-30 |
SE7507163L (en) | 1975-12-29 |
IL47420A0 (en) | 1975-08-31 |
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