GB1196670A - A Continuous Process for the Production of Polymethylene Terephthalate having a High Degree of Polymerization, Product Obtained Thereby and Fibres Manufactured with Said Products - Google Patents

A Continuous Process for the Production of Polymethylene Terephthalate having a High Degree of Polymerization, Product Obtained Thereby and Fibres Manufactured with Said Products

Info

Publication number
GB1196670A
GB1196670A GB5817367A GB5817367A GB1196670A GB 1196670 A GB1196670 A GB 1196670A GB 5817367 A GB5817367 A GB 5817367A GB 5817367 A GB5817367 A GB 5817367A GB 1196670 A GB1196670 A GB 1196670A
Authority
GB
United Kingdom
Prior art keywords
heated
polymerization
terephthalate
products
production
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
Application number
GB5817367A
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.)
Bemberg SpA
Original Assignee
Bemberg SpA
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 Bemberg SpA filed Critical Bemberg SpA
Publication of GB1196670A publication Critical patent/GB1196670A/en
Expired legal-status Critical Current

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
    • C08G63/02—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
    • C08G63/183—Terephthalic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/2425—Tubular reactors in parallel
    • 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
    • C08G63/785—Preparation processes characterised by the apparatus used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00099—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor the reactor being immersed in the heat exchange medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1,196,670. Poly-(alkylene terephthalates). BEMBERG S.p.A. 19 Dec., 1967 [11 Jan., 1967], No. 58173/67. Heading C3R. [Also in Division B1] A poly-(alkylene terephthalate) is made by feeding a bis-(hydroxyalkyl) terephthalate to a heated vessel 3 maintained under vacuum and where it flows down a spiral channel 2, open at the top, into a collecting chamber 4. Molten prepolymer from the chamber 4 is fed to a column 15, also maintained under vacuum, in which it is split into three branches each feeding two spinnerets 17. Rectangular films of prepolymer are extruded from the spinnerets and fall freely through spaces 18 defined by vertical walls 19 which are heated by vapours circulating in the space 20 and polycondensation of the films take place. Molten polymer is collected in a heated funnel-shaped chamber 21. The polymethylene glycol distilled off during the polycondensation is removed from vessel 2 and column 15.
GB5817367A 1967-01-11 1967-12-19 A Continuous Process for the Production of Polymethylene Terephthalate having a High Degree of Polymerization, Product Obtained Thereby and Fibres Manufactured with Said Products Expired GB1196670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT789819 1967-01-11

Publications (1)

Publication Number Publication Date
GB1196670A true GB1196670A (en) 1970-07-01

Family

ID=11125463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5817367A Expired GB1196670A (en) 1967-01-11 1967-12-19 A Continuous Process for the Production of Polymethylene Terephthalate having a High Degree of Polymerization, Product Obtained Thereby and Fibres Manufactured with Said Products

Country Status (1)

Country Link
GB (1) GB1196670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182352A2 (en) * 1984-11-20 1986-05-28 Mitsubishi Rayon Co., Ltd. Process for the production of polyester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182352A2 (en) * 1984-11-20 1986-05-28 Mitsubishi Rayon Co., Ltd. Process for the production of polyester
EP0182352A3 (en) * 1984-11-20 1988-01-07 Mitsubishi Rayon Co Process for the production of polyester

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees