GB1194440A - Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions - Google Patents

Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions

Info

Publication number
GB1194440A
GB1194440A GB5477268A GB5477268A GB1194440A GB 1194440 A GB1194440 A GB 1194440A GB 5477268 A GB5477268 A GB 5477268A GB 5477268 A GB5477268 A GB 5477268A GB 1194440 A GB1194440 A GB 1194440A
Authority
GB
United Kingdom
Prior art keywords
volatile substance
vessel
styrene
orifices
mixture
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
Application number
GB5477268A
Inventor
Koji Kimoto
Yoshinari Yanagisawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AU45070/68A priority Critical patent/AU419961B2/en
Priority to FR171563A priority patent/FR1590032A/fr
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to GB5477268A priority patent/GB1194440A/en
Publication of GB1194440A publication Critical patent/GB1194440A/en
Expired legal-status Critical Current

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
    • C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/06—Flash distillation
    • 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
    • C08F6/06—Treatment of polymer solutions
    • C08F6/10—Removal of volatile materials, e.g. solvents
    • 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
    • C08F6/26—Treatment of polymers prepared in bulk also solid polymers or polymer melts
    • C08F6/28—Purification
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/103—De-aerating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,194,440. Polymer compositions; recovery of monomers and solvents. MITSUI TOATSU CHEMICALS Inc. 19 Nov., 1968, No. 54772/ 68. Heading B1B. A volatile substance, e.g. a monomer and or solvent, is removed from a polymer composition, or other mixture of viscous material and volatile substance, by injecting the mixture through pipe 1 and orifices 5 to form strands 6 in a vessel 3, maintained under sub-atmospheric pressure e.g. 50-100 Hg. absolute, wherein the strands impact the peaked roof 21 of a hollow elongated heater 20 and the material flows, in the form of a film, down the hot walls 22 and 23. Volatile substance is vaporized from the strands with foaming. Residual volatile substance is vaporized from the film. Voltatile substances are withdrawn from vessel 3 through opening 15; and the devolatilized material flows out through outlet 16. The mixture is heated under pressure before it is injected through orifices 5 into vessel 3. The orifices 5 have a diameter of about 3 mm. Conduits are provided for circulating heating fluid through the heater 20, and through the jacket 17 of vessel 3. The strand-former is also provided with a heating- jacket 7. Examples are given which relate to the removal of styrene and solvent (ethyl benzene or toluene) from a reaction solution obtained by bulk polymerization of styrene. The polystyrene product contains less than 0.5 wt. % of volatile substance. Volatile substances can also be removed by this process from acrylonitrile-styrene copolymerized resins, and from acrylonitrile-butadiene-styrene copolymerized resins.
GB5477268A 1968-11-19 1968-11-19 Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions Expired GB1194440A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU45070/68A AU419961B2 (en) 1968-11-19 1968-10-21 Process and apparatus for removing volatile substances from viscous compositions
FR171563A FR1590032A (en) 1968-11-19 1968-10-28
GB5477268A GB1194440A (en) 1968-11-19 1968-11-19 Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5477268A GB1194440A (en) 1968-11-19 1968-11-19 Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions

Publications (1)

Publication Number Publication Date
GB1194440A true GB1194440A (en) 1970-06-10

Family

ID=10472035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5477268A Expired GB1194440A (en) 1968-11-19 1968-11-19 Improvements in or relating to the Removal of Volatile Substances from Viscous Compositions

Country Status (3)

Country Link
AU (1) AU419961B2 (en)
FR (1) FR1590032A (en)
GB (1) GB1194440A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453155A1 (en) * 1990-04-12 1991-10-23 Polysar Financial Services S.A. Distributor for a devolatilizer
WO2004029140A1 (en) * 2002-09-27 2004-04-08 Meishin Kogyo Kabushikigaisha Volume-decreased gel-like polystyrene resin separating and recovering device
EP1629903A1 (en) * 2004-08-31 2006-03-01 Seiko Epson Corporation Apparatus for extracting liquid crystal by heating under reduced pressure and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2606612A1 (en) * 1976-02-19 1977-08-25 Basf Ag PROCESS AND DEVICE FOR THE REMOVAL OF VAPORABLE COMPONENTS FROM HIGHLY VISCOSE SOLUTIONS OR MELTS OF THERMOPLASTIC PLASTICS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453155A1 (en) * 1990-04-12 1991-10-23 Polysar Financial Services S.A. Distributor for a devolatilizer
WO2004029140A1 (en) * 2002-09-27 2004-04-08 Meishin Kogyo Kabushikigaisha Volume-decreased gel-like polystyrene resin separating and recovering device
EP1629903A1 (en) * 2004-08-31 2006-03-01 Seiko Epson Corporation Apparatus for extracting liquid crystal by heating under reduced pressure and method thereof

Also Published As

Publication number Publication date
FR1590032A (en) 1970-04-06
AU419961B2 (en) 1971-12-20
AU4507068A (en) 1970-09-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee