AU8448682A - Deodorizing polypropylene - Google Patents

Deodorizing polypropylene

Info

Publication number
AU8448682A
AU8448682A AU84486/82A AU8448682A AU8448682A AU 8448682 A AU8448682 A AU 8448682A AU 84486/82 A AU84486/82 A AU 84486/82A AU 8448682 A AU8448682 A AU 8448682A AU 8448682 A AU8448682 A AU 8448682A
Authority
AU
Australia
Prior art keywords
polymer
olefin polymer
deodorizing
propylene
degrees
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
AU84486/82A
Other versions
AU550609B2 (en
Inventor
Walter Best
Peter Blei
James F.R. Jaggard
Peter Klaerner
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of AU8448682A publication Critical patent/AU8448682A/en
Application granted granted Critical
Publication of AU550609B2 publication Critical patent/AU550609B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/005—Removal of residual monomers by physical means from solid polymers

Landscapes

  • 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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

1. A process for deodorizing a finely divided olefin polymer which has a particle diameter of from 1 to 6,000 mu m and has been obtained directly by homopolymerization of propylene or copolymerization of propylene with up to 20 mol % of ethylene, in the presence of a Ziegler-Natta catalyst, by means of a medium which flows through the olefin polymer at a temperature that is at least 10 degrees C below the crystallite melting point of the particular polymer, and takes up the odoriferous substances, this medium being a hydrocarbon compound, wherein the hydrocarbon compound is (i) an alkane or alkene of not more than three carbon atoms, (ii) a fluorinated and/or chlorinated methane or ethane or (iii) carbon-dioxide, and flows through the polymer at from 5 to 120 degrees C, under a pressure of from 30 to 300 bar, and in an amount of from 0.1 to 20 m**3 (S.T.P.) per kg of olefin polymer.
AU84486/82A 1981-06-06 1982-06-04 Deodorizing polypropylene Ceased AU550609B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE31226795 1981-06-06
DE19813122679 DE3122679A1 (en) 1981-06-06 1981-06-06 METHOD FOR THE DESODORATION OF FINE-PARTICULATED PROPYLENE POLYMERISATES OBTAINED BY ZIEGLER-NATTA CATALYSTS

Publications (2)

Publication Number Publication Date
AU8448682A true AU8448682A (en) 1982-12-16
AU550609B2 AU550609B2 (en) 1986-03-27

Family

ID=6134181

Family Applications (1)

Application Number Title Priority Date Filing Date
AU84486/82A Ceased AU550609B2 (en) 1981-06-06 1982-06-04 Deodorizing polypropylene

Country Status (4)

Country Link
EP (1) EP0068146B1 (en)
AT (1) ATE9704T1 (en)
AU (1) AU550609B2 (en)
DE (2) DE3122679A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577274B2 (en) * 1983-04-29 1988-09-22 Mobil Oil Corporation Process for removal of residual monomers from ethylene co-polymers
NL8303942A (en) * 1983-11-17 1985-06-17 Stamicarbon PROCESS FOR THE PURIFICATION OF A RUBBER.
DE3425125A1 (en) * 1984-07-07 1986-01-16 Bayer Ag, 5090 Leverkusen METHOD FOR REMOVING UNWANTED REMAINING COMPONENTS, IN PARTICULAR LOW MOLECULAR COMPONENTS, FROM SOLID POLYMERS
NL8403488A (en) * 1984-11-15 1986-06-02 Stamicarbon PROCESS FOR THE PURIFICATION OF AN ACRYLONITRIL GROUPS CONTAINING COPOLYMER
FR2611207B1 (en) * 1987-02-19 1989-07-13 Rhone Poulenc Sante PROCESS FOR THE PURIFICATION OF STYRENE COPOLYMERS WITH VINYLPYRIDINES BY EXTRACTION USING SUPERCRITICAL GAS
DE3815487A1 (en) * 1988-05-06 1989-11-16 Basf Ag METHOD FOR LOW-PRESSURE COPOLYMERISATION OF ETHYLENE WITH (ALPHA) -OLEFINES AND ETHYLENE COPOLYMERISATE WITH LOW RESIDUAL MONOMER CONTENT
JPH0286604A (en) * 1988-09-22 1990-03-27 Toyo Eng Corp Method for purifying polymer
US5703203A (en) * 1995-03-31 1997-12-30 Montell North America Inc. Removal of oligomers from substantially crystalline, α-olefin polymers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1795396C3 (en) * 1968-09-26 1982-05-19 Basf Ag, 6700 Ludwigshafen Process for removing volatile, odor-causing constituents from finely divided olefin polymers
DE2224558B2 (en) * 1972-05-19 1979-02-22 Basf Ag, 6700 Ludwigshafen Process for reducing the halogen content from catalyst constituents in small-particle polyolefins

Also Published As

Publication number Publication date
ATE9704T1 (en) 1984-10-15
EP0068146B1 (en) 1984-10-03
AU550609B2 (en) 1986-03-27
EP0068146A1 (en) 1983-01-05
DE3260880D1 (en) 1984-11-08
DE3122679A1 (en) 1982-12-23

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