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NO983613L - FremgangsmÕte for Õ fremstille polyakrylamid partikler - Google Patents

FremgangsmÕte for Õ fremstille polyakrylamid partikler

Info

Publication number
NO983613L
NO983613L NO983613A NO983613A NO983613L NO 983613 L NO983613 L NO 983613L NO 983613 A NO983613 A NO 983613A NO 983613 A NO983613 A NO 983613A NO 983613 L NO983613 L NO 983613L
Authority
NO
Norway
Prior art keywords
temperature
gel particles
particles
processes
aqueous
Prior art date
Application number
NO983613A
Other languages
English (en)
Other versions
NO983613D0 (no
Inventor
Jonathan Hughes
Yvonne Christine Armitage
Kenneth Charles Symes
Anthony Paul Brooke
Original Assignee
Allied Colloids Ltd
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 Allied Colloids Ltd filed Critical Allied Colloids Ltd
Publication of NO983613D0 publication Critical patent/NO983613D0/no
Publication of NO983613L publication Critical patent/NO983613L/no

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
    • C08F6/006—Removal of residual monomers by chemical reaction, e.g. scavenging

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Prosesser for fremstilling av hovedsakelig tørt polyakrylamidpulver hvori nivåene hvor rest-akrylamidmonomer er vesentlig redusert, er tilveiebrakt. Disse prosesser er særlig egnet for bruk i en industriell eller fabrikkmessig skala. En prosess omfatter tilveiebringelse av vandige polyalkrylamid-gelpartikler forurenset med akrylamidmonomer, amidaseenzym påføres på de vandige gelpartikler mens disse befinner seg ved en temperatur på 50-95°C og hovedsakelig umiddelbart føres de vandige gelpartikler til et tørketrinn og underkastes i dette trinn for en temperatur på minst 60°C. De endelige nivåer for rest-akrylamid kan reduseres ennå mer med innføringen av et kort oppholdstrinn på ikke mer enn 30 minutter ved en temperatur på 20-70°C før partiklene føres til tørking.
NO983613A 1996-02-07 1998-08-06 FremgangsmÕte for Õ fremstille polyakrylamid partikler NO983613L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9602415.3A GB9602415D0 (en) 1996-02-07 1996-02-07 Polyacrylamide particles
PCT/GB1997/000317 WO1997029136A1 (en) 1996-02-07 1997-02-04 Processes for the production of polyacrylamide particles

Publications (2)

Publication Number Publication Date
NO983613D0 NO983613D0 (no) 1998-08-06
NO983613L true NO983613L (no) 1998-10-07

Family

ID=10788230

Family Applications (1)

Application Number Title Priority Date Filing Date
NO983613A NO983613L (no) 1996-02-07 1998-08-06 FremgangsmÕte for Õ fremstille polyakrylamid partikler

Country Status (10)

Country Link
EP (1) EP0879252A1 (no)
JP (1) JP2000504057A (no)
AU (1) AU1610997A (no)
BR (1) BR9707271A (no)
GB (1) GB9602415D0 (no)
MX (1) MX9806357A (no)
NO (1) NO983613L (no)
PL (1) PL328372A1 (no)
WO (1) WO1997029136A1 (no)
ZA (1) ZA971021B (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9716764D0 (en) * 1997-08-07 1997-10-15 Allied Colloids Ltd Acrylamidase enzymes
GB9716767D0 (en) * 1997-08-07 1997-10-15 Allied Colloids Ltd Polymer purification processes
AUPS166702A0 (en) * 2002-04-10 2002-05-16 Life Therapeutics Limited Polyacrylamide hydrogels
GB0416285D0 (en) 2004-07-21 2004-08-25 Ciba Spec Chem Water Treat Ltd Method of treating polymers
CA2723335C (en) * 2009-12-16 2013-04-30 Rohm And Haas Company Low odor compositions and low odor coating compositions
AU2024273020A1 (en) * 2023-05-18 2025-12-04 Bl Technologies, Inc. Method for producing polymers with low residual acrylamide and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8803064D0 (en) * 1988-02-10 1988-03-09 Allied Colloids Ltd Polymeric compositions & their production
GB8908874D0 (en) * 1989-04-19 1989-06-07 Ici Plc Method for the production of amidase enzyme
GB9020081D0 (en) * 1990-09-14 1990-10-24 Allied Colloids Ltd Polymerisation processes
US6146861A (en) * 1995-08-09 2000-11-14 Ciba Specialty Chemicals Water Treatment Limited Processes for the production of amidase

Also Published As

Publication number Publication date
AU1610997A (en) 1997-08-28
NO983613D0 (no) 1998-08-06
WO1997029136A1 (en) 1997-08-14
JP2000504057A (ja) 2000-04-04
MX9806357A (es) 1998-10-31
GB9602415D0 (en) 1996-04-03
ZA971021B (en) 1998-02-09
EP0879252A1 (en) 1998-11-25
BR9707271A (pt) 1999-04-13
PL328372A1 (en) 1999-01-18

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