WO2008075373A3 - An efficient process for the production of polyester - Google Patents

An efficient process for the production of polyester Download PDF

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Publication number
WO2008075373A3
WO2008075373A3 PCT/IN2007/000136 IN2007000136W WO2008075373A3 WO 2008075373 A3 WO2008075373 A3 WO 2008075373A3 IN 2007000136 W IN2007000136 W IN 2007000136W WO 2008075373 A3 WO2008075373 A3 WO 2008075373A3
Authority
WO
WIPO (PCT)
Prior art keywords
prepolymer
molecular weight
dust generation
present
production
Prior art date
Application number
PCT/IN2007/000136
Other languages
French (fr)
Other versions
WO2008075373A2 (en
Inventor
Vikas Madhusudan Nadkarni
Shreeram Ashok Wadekar
Dubey Rajan
Anand Anil Bopardikar
Original Assignee
Reliance Ind Ltd
Vikas Madhusudan Nadkarni
Shreeram Ashok Wadekar
Dubey Rajan
Anand Anil Bopardikar
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 Reliance Ind Ltd, Vikas Madhusudan Nadkarni, Shreeram Ashok Wadekar, Dubey Rajan, Anand Anil Bopardikar filed Critical Reliance Ind Ltd
Publication of WO2008075373A2 publication Critical patent/WO2008075373A2/en
Publication of WO2008075373A3 publication Critical patent/WO2008075373A3/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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof

Abstract

The present invention discloses an efficient process for the production of a high molecular weight polyester resin having IV of about 0.4 dl/g to about 1.2 dl/g produced from a low molecular weight crystalline prepolymer having IV of about 0.1 dl/g to about 0.4 dl/g by adding oraganotin compound at any steps during the esterification or the melt polymerization but before a particle former process which reduces dust generation in the melt polymerization and also reduces dust generation and the oligomer volatilization in the solid state polymerization. The present invention also discloses a polyester prepolymer having IV of about 0.1 dl/g to about 0.4 dl/g which is used as a precursor for solid-state polymerization. The prepolymer particles are crystalline or amorphous in nature. The prepolymer particles are cylindrical, hemispherical or spherical in shape with no sharp edges, which also helps in reducing dust generation. The present invention also provides high molecular weight polyester resin having IV of about 0.4 dl/g to about 1.2 dl/g and is used as preforms, containers, fibers or filaments, films or sheets.
PCT/IN2007/000136 2006-12-19 2007-03-30 An efficient process for the production of polyester WO2008075373A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2077MU2006 2006-12-19
IN2077/MUM/2006 2006-12-19

Publications (2)

Publication Number Publication Date
WO2008075373A2 WO2008075373A2 (en) 2008-06-26
WO2008075373A3 true WO2008075373A3 (en) 2009-04-16

Family

ID=39536829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2007/000136 WO2008075373A2 (en) 2006-12-19 2007-03-30 An efficient process for the production of polyester

Country Status (1)

Country Link
WO (1) WO2008075373A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9745415B2 (en) * 2014-02-21 2017-08-29 Ester Industries Limited Sulfonated co-polyesters and method for manufacturing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340909A (en) * 1991-12-18 1994-08-23 Hoechst Celanese Corporation Poly(1,3-propylene terephthalate)
US6451966B1 (en) * 2001-08-10 2002-09-17 E. I. Du Pont De Nemours And Company Method for increasing solid state polymerization rate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340909A (en) * 1991-12-18 1994-08-23 Hoechst Celanese Corporation Poly(1,3-propylene terephthalate)
US6451966B1 (en) * 2001-08-10 2002-09-17 E. I. Du Pont De Nemours And Company Method for increasing solid state polymerization rate

Also Published As

Publication number Publication date
WO2008075373A2 (en) 2008-06-26

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