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WO2008012769A3 - Purge composition and method of purging an extruder - Google Patents

Purge composition and method of purging an extruder Download PDF

Info

Publication number
WO2008012769A3
WO2008012769A3 PCT/IB2007/052960 IB2007052960W WO2008012769A3 WO 2008012769 A3 WO2008012769 A3 WO 2008012769A3 IB 2007052960 W IB2007052960 W IB 2007052960W WO 2008012769 A3 WO2008012769 A3 WO 2008012769A3
Authority
WO
WIPO (PCT)
Prior art keywords
purging
extruder
purge composition
composition
purge
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.)
Ceased
Application number
PCT/IB2007/052960
Other languages
French (fr)
Other versions
WO2008012769A2 (en
Inventor
Alan Baillie King
Timothy Paul Cooper
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.)
CHEMFIT SPECIALITY CHEMICALS Pty Ltd
CHEMFIT SPECIALITY CHEMICALS P
Original Assignee
CHEMFIT SPECIALITY CHEMICALS Pty Ltd
CHEMFIT SPECIALITY CHEMICALS P
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 CHEMFIT SPECIALITY CHEMICALS Pty Ltd, CHEMFIT SPECIALITY CHEMICALS P filed Critical CHEMFIT SPECIALITY CHEMICALS Pty Ltd
Publication of WO2008012769A2 publication Critical patent/WO2008012769A2/en
Publication of WO2008012769A3 publication Critical patent/WO2008012769A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/70—Maintenance
    • B29C33/72—Cleaning
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
    • C08K5/3462—Six-membered rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

This invention relates to a polymer purge composition, typically based on PVC, and to a method of purging a plastic extruder or injection moulder. The purge composition is stabilized with an organic based stabilizer (OBS) and contains abrasive fillers, and detergents/lubricants.
PCT/IB2007/052960 2006-07-25 2007-07-25 Purge composition and method of purging an extruder Ceased WO2008012769A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200606159 2006-07-25
ZA2006/06159 2006-07-25

Publications (2)

Publication Number Publication Date
WO2008012769A2 WO2008012769A2 (en) 2008-01-31
WO2008012769A3 true WO2008012769A3 (en) 2008-05-08

Family

ID=38965778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052960 Ceased WO2008012769A2 (en) 2006-07-25 2007-07-25 Purge composition and method of purging an extruder

Country Status (1)

Country Link
WO (1) WO2008012769A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2540980A (en) * 2015-08-03 2017-02-08 R&P Dev Ltd Purge material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346228A (en) * 1940-06-25 1944-04-11 Carbide & Carbon Chem Corp Method and composition for purging plastic fabricating machines
EP0234529A2 (en) * 1986-02-20 1987-09-02 Chisso Corporation A thermoplastic resin composition for cleaning
EP0967209A1 (en) * 1998-06-26 1999-12-29 Witco Vinyl Additives GmbH NH2-modified 6-aminouracils as stabilisers for halogen-containing polymers
WO2000068207A1 (en) * 1999-05-10 2000-11-16 Solvay (Société Anonyme) Novel 6-amino-uracil derivatives, preparation and use thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346228A (en) * 1940-06-25 1944-04-11 Carbide & Carbon Chem Corp Method and composition for purging plastic fabricating machines
EP0234529A2 (en) * 1986-02-20 1987-09-02 Chisso Corporation A thermoplastic resin composition for cleaning
EP0967209A1 (en) * 1998-06-26 1999-12-29 Witco Vinyl Additives GmbH NH2-modified 6-aminouracils as stabilisers for halogen-containing polymers
WO2000068207A1 (en) * 1999-05-10 2000-11-16 Solvay (Société Anonyme) Novel 6-amino-uracil derivatives, preparation and use thereof

Also Published As

Publication number Publication date
WO2008012769A2 (en) 2008-01-31

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