FR2137310A1 - Solvent free polyolefins prepn - by multiple extrusion of solns - Google Patents

Solvent free polyolefins prepn - by multiple extrusion of solns

Info

Publication number
FR2137310A1
FR2137310A1 FR7117969A FR7117969A FR2137310A1 FR 2137310 A1 FR2137310 A1 FR 2137310A1 FR 7117969 A FR7117969 A FR 7117969A FR 7117969 A FR7117969 A FR 7117969A FR 2137310 A1 FR2137310 A1 FR 2137310A1
Authority
FR
France
Prior art keywords
solns
prepn
solvent free
multiple extrusion
free polyolefins
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.)
Granted
Application number
FR7117969A
Other languages
French (fr)
Other versions
FR2137310B1 (en
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.)
MANUF NORM POLYETHYLENES
Original Assignee
MANUF NORM POLYETHYLENES
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
Application filed by MANUF NORM POLYETHYLENES filed Critical MANUF NORM POLYETHYLENES
Priority to FR7117969A priority Critical patent/FR2137310A1/en
Priority to NL7203909A priority patent/NL7203909A/xx
Priority to BE781498A priority patent/BE781498A/en
Priority to CA138,707A priority patent/CA1017494A/en
Priority to CH484672A priority patent/CH537199A/en
Priority to DD16201672A priority patent/DD95462A5/xx
Priority to GB1511172A priority patent/GB1388278A/en
Priority to IT2274572A priority patent/IT953594B/en
Priority to AT281572A priority patent/AT326349B/en
Priority to JP3179372A priority patent/JPS5430013B1/ja
Priority to DE19722224387 priority patent/DE2224387A1/en
Publication of FR2137310A1 publication Critical patent/FR2137310A1/en
Application granted granted Critical
Publication of FR2137310B1 publication Critical patent/FR2137310B1/fr
Granted 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Solns contg. >=60% of polyolefin are introduced into a device consisting of one or more extruders in series having successive zones with gas releasing orifices, the device working at a temp above the b.pt. of the solvent and the last orifices being under a press. decreasing to 100 mm. Hg abs. Suitable for treating H.
FR7117969A 1971-03-31 1971-05-18 Solvent free polyolefins prepn - by multiple extrusion of solns Granted FR2137310A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR7117969A FR2137310A1 (en) 1971-05-18 1971-05-18 Solvent free polyolefins prepn - by multiple extrusion of solns
NL7203909A NL7203909A (en) 1971-03-31 1972-03-23
CA138,707A CA1017494A (en) 1971-03-31 1972-03-30 Process of obtention of polyolefines practically free of residual solvant
CH484672A CH537199A (en) 1971-03-31 1972-03-30 Process for obtaining polyolefins practically free from residual solvent
DD16201672A DD95462A5 (en) 1971-03-31 1972-03-30
GB1511172A GB1388278A (en) 1971-03-31 1972-03-30 Process and apparatus for the removal of solvents from solutions of polyolefines
BE781498A BE781498A (en) 1971-03-31 1972-03-30 PROCESS FOR OBTAINING POLYOLEFINS PRACTICALLY FREE OF RESIDUAL SOLVENT
IT2274572A IT953594B (en) 1971-03-31 1972-03-31 PROCEDURE TO OBTAIN FINE POLYOLS PRACTICALLY FREE FROM RESIDUAL SOLVEN TE
AT281572A AT326349B (en) 1971-03-31 1972-03-31 METHOD AND APPARATUS FOR THE RECOVERY OF POLYOLFINS PRACTICALLY FREE OF SOLVENT RESIDUES
JP3179372A JPS5430013B1 (en) 1971-03-31 1972-03-31
DE19722224387 DE2224387A1 (en) 1971-05-18 1972-05-18 Process for the production of polyolefins which are practically free of solvent residues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7117969A FR2137310A1 (en) 1971-05-18 1971-05-18 Solvent free polyolefins prepn - by multiple extrusion of solns

Publications (2)

Publication Number Publication Date
FR2137310A1 true FR2137310A1 (en) 1972-12-29
FR2137310B1 FR2137310B1 (en) 1973-05-11

Family

ID=9077239

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7117969A Granted FR2137310A1 (en) 1971-03-31 1971-05-18 Solvent free polyolefins prepn - by multiple extrusion of solns

Country Status (2)

Country Link
DE (1) DE2224387A1 (en)
FR (1) FR2137310A1 (en)

Also Published As

Publication number Publication date
FR2137310B1 (en) 1973-05-11
DE2224387A1 (en) 1972-11-30

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Legal Events

Date Code Title Description
ST Notification of lapse