DE69609953D1 - Gewinnung von dimethyl terephtalat aus polymergemischen - Google Patents

Gewinnung von dimethyl terephtalat aus polymergemischen

Info

Publication number
DE69609953D1
DE69609953D1 DE69609953T DE69609953T DE69609953D1 DE 69609953 D1 DE69609953 D1 DE 69609953D1 DE 69609953 T DE69609953 T DE 69609953T DE 69609953 T DE69609953 T DE 69609953T DE 69609953 D1 DE69609953 D1 DE 69609953D1
Authority
DE
Germany
Prior art keywords
production
polymer mixtures
dimethyl terephtalate
terephtalate
dimethyl
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.)
Expired - Fee Related
Application number
DE69609953T
Other languages
English (en)
Other versions
DE69609953T2 (de
Inventor
Everette Michel
Malcolm Williamson
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.)
DuPont Teijin Films US LP
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of DE69609953D1 publication Critical patent/DE69609953D1/de
Publication of DE69609953T2 publication Critical patent/DE69609953T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters
    • C07C69/82—Terephthalic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
DE69609953T 1995-04-11 1996-03-25 Gewinnung von dimethyl terephtalat aus polymergemischen Expired - Fee Related DE69609953T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/420,164 US5504122A (en) 1995-04-11 1995-04-11 Recovery of dimethyl terephthalate from polymer mixtures
PCT/US1996/004038 WO1996032367A1 (en) 1995-04-11 1996-03-25 Recovery of dimethyl terephthalate from polymer mixtures

Publications (2)

Publication Number Publication Date
DE69609953D1 true DE69609953D1 (de) 2000-09-28
DE69609953T2 DE69609953T2 (de) 2001-02-08

Family

ID=23665336

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69609953T Expired - Fee Related DE69609953T2 (de) 1995-04-11 1996-03-25 Gewinnung von dimethyl terephtalat aus polymergemischen

Country Status (9)

Country Link
US (1) US5504122A (de)
EP (1) EP0820429B1 (de)
JP (1) JPH11503451A (de)
KR (1) KR100407901B1 (de)
CN (1) CN1078879C (de)
CA (1) CA2217493C (de)
DE (1) DE69609953T2 (de)
ES (1) ES2150666T3 (de)
WO (1) WO1996032367A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007950A1 (en) * 1992-09-25 1994-04-14 Ciba-Geigy Ag Process for the stabilization of and stabilizer mixtures for recycled plastic mixtures
US5912275A (en) * 1997-09-30 1999-06-15 E. I. Du Pont De Nemours And Company Process for depolymerizing polyester
US6706843B1 (en) 1999-10-22 2004-03-16 Teijin Limited Method for separating and recovering dimethyl terephthalate and ethylene glycol from polyester waste
AU2003243763A1 (en) * 2002-12-23 2004-07-29 E. I. Du Pont De Nemours And Company Poly(trimethylene terephthalate) bicomponent fiber process
US20070035057A1 (en) * 2003-06-26 2007-02-15 Chang Jing C Poly(trimethylene terephthalate) bicomponent fiber process
US20060041039A1 (en) * 2004-08-20 2006-02-23 Gyorgyi Fenyvesi Fluorescent poly(alkylene terephthalate) compositions
US7357985B2 (en) * 2005-09-19 2008-04-15 E.I. Du Pont De Nemours And Company High crimp bicomponent fibers
US20070129503A1 (en) * 2005-12-07 2007-06-07 Kurian Joseph V Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) molded, shaped articles
US20070128459A1 (en) * 2005-12-07 2007-06-07 Kurian Joseph V Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) films
US7666501B2 (en) * 2005-12-07 2010-02-23 E. I. Du Pont De Nemours And Company Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) bi-constituent filaments
US9981902B2 (en) 2015-10-23 2018-05-29 Columbia Insurance Company Process for production of an ester and diol from reclaimed carpet material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2055066A1 (en) * 1990-11-09 1992-05-10 Robert E. Michel Recovery of methyl esters of aromatic acids and glycols from thermoplastic polyester scrap
US5120768A (en) * 1991-05-09 1992-06-09 The Goodyear Tire & Rubber Company Process for separating polyethylene terephthalate from polyvinyl chloride
US5395858A (en) * 1994-04-28 1995-03-07 Partek, Inc. Process for recycling polyester
US5393916A (en) * 1994-06-24 1995-02-28 Eastman Kodak Company Inhibition of dioxane formation during recovery of glycols from polyester resins

Also Published As

Publication number Publication date
MX9707530A (es) 1997-11-29
CN1181059A (zh) 1998-05-06
CA2217493C (en) 2006-11-07
CA2217493A1 (en) 1996-10-17
CN1078879C (zh) 2002-02-06
KR100407901B1 (ko) 2004-03-12
EP0820429B1 (de) 2000-08-23
KR19980703783A (ko) 1998-12-05
DE69609953T2 (de) 2001-02-08
US5504122A (en) 1996-04-02
JPH11503451A (ja) 1999-03-26
ES2150666T3 (es) 2000-12-01
WO1996032367A1 (en) 1996-10-17
EP0820429A1 (de) 1998-01-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DUPONT TEIJIN FILMS U.S., LTD. PARTNERSHIP, WILMIN

8339 Ceased/non-payment of the annual fee