[go: up one dir, main page]

SG81227A1 - Method for recyling aromatic polycarbonates - Google Patents

Method for recyling aromatic polycarbonates

Info

Publication number
SG81227A1
SG81227A1 SG9800724A SG1998000724A SG81227A1 SG 81227 A1 SG81227 A1 SG 81227A1 SG 9800724 A SG9800724 A SG 9800724A SG 1998000724 A SG1998000724 A SG 1998000724A SG 81227 A1 SG81227 A1 SG 81227A1
Authority
SG
Singapore
Prior art keywords
recyling
aromatic polycarbonates
polycarbonates
aromatic
recyling aromatic
Prior art date
Application number
SG9800724A
Inventor
Satayana Varadaraja Godavarthi
Anthony King Joseph Jr
Bhairavnath Idage Bhaskar
Sivaram Swaminathan
Ramchandra Ranade Vishnu
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of SG81227A1 publication Critical patent/SG81227A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/40—Post-polymerisation treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
    • C08G64/04—Aromatic polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
SG9800724A 1997-09-02 1998-04-13 Method for recyling aromatic polycarbonates SG81227A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN1619CA1997 1997-09-02

Publications (1)

Publication Number Publication Date
SG81227A1 true SG81227A1 (en) 2001-06-19

Family

ID=11086794

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9800724A SG81227A1 (en) 1997-09-02 1998-04-13 Method for recyling aromatic polycarbonates

Country Status (5)

Country Link
JP (1) JPH11152371A (en)
KR (1) KR19990029426A (en)
AU (1) AU8189798A (en)
BR (1) BR9802294A (en)
SG (1) SG81227A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040016514A (en) * 2002-08-17 2004-02-25 에쓰대시오일 주식회사 Pretreatment methods for polycarbonate solid state polymerization
JP7597039B2 (en) 2019-12-27 2024-12-10 三菱瓦斯化学株式会社 Recycled resin manufacturing method
FR3124108B1 (en) * 2021-06-17 2023-06-09 Polyloop Process for recycling and recovering polycarbonate-based composite waste
EP4194171A4 (en) * 2021-06-22 2024-02-28 Lg Chem, Ltd. Waste plastic recycling process
KR20230054994A (en) * 2021-10-18 2023-04-25 주식회사 엘지화학 Manufacturing method of recycled polycarbonate and recycled polycarbonate
CN114644776B (en) * 2022-04-29 2023-09-01 聊城鲁西聚碳酸酯有限公司 System and method for recycling polycarbonate powder
TW202436439A (en) * 2022-11-25 2024-09-16 日商三菱瓦斯化學股份有限公司 Method for producing recycled polycarbonate resin
EP4644471A1 (en) 2022-12-26 2025-11-05 Mitsubishi Chemical Corporation Recycled polycarbonate resin and method for producing same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173250B (en) * 1958-06-12 1964-07-02 Pittsburgh Plate Glass Co Process for the production of pure, grainy polycarbonates with a high bulk weight
DE4009496A1 (en) * 1990-03-24 1991-09-26 Goeppinger Kaliko Gmbh Recovering pure-grade plastics from impure scrap - by dissolving in a suitable solvent and reprecipitating with a non-solvent
DE4009308A1 (en) * 1990-03-23 1991-09-26 Bayer Ag Recycling scrap polymers - by filtering soln. of the polymer through sand to remove insol. impurities
EP0509358A1 (en) * 1991-04-19 1992-10-21 Bayer Ag Process for removal of inorganic pigments from thermoplastic polycondensates
US5717056A (en) * 1996-05-24 1998-02-10 General Electric Company Method for preparing polycarbonate by solid state polymerization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173250B (en) * 1958-06-12 1964-07-02 Pittsburgh Plate Glass Co Process for the production of pure, grainy polycarbonates with a high bulk weight
DE4009308A1 (en) * 1990-03-23 1991-09-26 Bayer Ag Recycling scrap polymers - by filtering soln. of the polymer through sand to remove insol. impurities
DE4009496A1 (en) * 1990-03-24 1991-09-26 Goeppinger Kaliko Gmbh Recovering pure-grade plastics from impure scrap - by dissolving in a suitable solvent and reprecipitating with a non-solvent
EP0509358A1 (en) * 1991-04-19 1992-10-21 Bayer Ag Process for removal of inorganic pigments from thermoplastic polycondensates
US5717056A (en) * 1996-05-24 1998-02-10 General Electric Company Method for preparing polycarbonate by solid state polymerization

Also Published As

Publication number Publication date
JPH11152371A (en) 1999-06-08
BR9802294A (en) 1999-12-14
KR19990029426A (en) 1999-04-26
AU8189798A (en) 1999-03-18

Similar Documents

Publication Publication Date Title
HRP960288B1 (en) Aromatic compounds
SG87749A1 (en) Continuous manufacturing method for aromatic carbonates
GB2345063B (en) Method
SG48502A1 (en) Manufacturing method for aromatic carbonates
GB9707744D0 (en) Method
SG81227A1 (en) Method for recyling aromatic polycarbonates
GB9624146D0 (en) Polycarbonates
EP0666277A3 (en) Method for making aromatic polycarbonates.
GB9717652D0 (en) Method
TW433263U (en) Case for cassette
SG68085A1 (en) Method for hydroxylating aromatic compounds
ZA956992B (en) Methods for inhibiting neuronal damage.
PL341657A1 (en) Deparaffining method
GB2321974B (en) Method for aligning optical elements
EP0626409A3 (en) Method for making aromatic polycarbonates.
GB9709811D0 (en) Method
GB9701894D0 (en) Method
ZA97281B (en) Process for dehydrocyclization
HU9701102D0 (en) Method for forming burial-grounds
GB9719212D0 (en) Anti-counterfeiting method
GB9723966D0 (en) Method for forming gratings
GB9719061D0 (en) Method
GB9713963D0 (en) Method
GB9718593D0 (en) Method
GB9725007D0 (en) Method