GB825550A - Improvements relating to linear polyesters - Google Patents

Improvements relating to linear polyesters

Info

Publication number
GB825550A
GB825550A GB2171258A GB2171258A GB825550A GB 825550 A GB825550 A GB 825550A GB 2171258 A GB2171258 A GB 2171258A GB 2171258 A GB2171258 A GB 2171258A GB 825550 A GB825550 A GB 825550A
Authority
GB
United Kingdom
Prior art keywords
mixture
ester
acid
lithium hydride
copolyesters
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
GB2171258A
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.)
EIDP Inc
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
Publication of GB825550A publication Critical patent/GB825550A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

A crystallizable linear copolyester is made by reacting a glycol of formula HO(CH2)nOH, where n is 2-10, from 5 to 35% by weight, based on the total weight of the acid components calculated as the acid form, of an acid component in the form of isophthalic acid or a lower alkyl ester thereof and 95 to 65% of an acid component in the form of terephthalic acid or a lower alkyl ester thereof, under ester-forming or ester-interchange conditions to form a mixture of glycol esters and polymerizing this mixture in presence of antimony trioxide. As ester-interchange catalyst there may be used litharge, lithium hydride or a mixture of lithium hydride and zinc acetate. The copolyesters may be converted into films, filaments, fibres, ribbon and tubing. In examples copolyesters were made by heating a mixture of dimethyl terephthalate, dimethyl isophthalate and ethylene glycol in presence of lithium hydride and zinc acetate dihydrate until evolution of methanol ceased, adding antimony oxide and triphenyl phosphate and heating under reduced pressure p and finally annealing the resulting copolyester at 115-140 DEG C. under nitrogen pressure. Specification 766,290 also is referred to.
GB2171258A 1955-02-04 1956-01-30 Improvements relating to linear polyesters Expired GB825550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48629055A 1955-02-04 1955-02-04

Publications (1)

Publication Number Publication Date
GB825550A true GB825550A (en) 1959-12-16

Family

ID=33435284

Family Applications (2)

Application Number Title Priority Date Filing Date
GB296856A Expired GB825549A (en) 1955-02-04 1956-01-30 Improvements in or relating to linear copolyester films
GB2171258A Expired GB825550A (en) 1955-02-04 1956-01-30 Improvements relating to linear polyesters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB296856A Expired GB825549A (en) 1955-02-04 1956-01-30 Improvements in or relating to linear copolyester films

Country Status (4)

Country Link
BE (1) BE544979A (en)
DE (1) DE1187792B (en)
FR (1) FR1145462A (en)
GB (2) GB825549A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485465A (en) 1974-09-10 1977-09-14 Teijin Ltd Process for the production of a shaped article from a polyester film
JPS6292826A (en) * 1985-10-18 1987-04-28 Toyobo Co Ltd Heat-shrinkable polyester-based tube
DE3667993D1 (en) * 1985-07-31 1990-02-08 Toyo Boseki HEAT-SHRINKABLE POLYESTER FILM AND HOSE AND MANUFACTURING METHOD FOR THE HOSE.
JPS6291555A (en) * 1985-10-18 1987-04-27 Toyobo Co Ltd Heat-shrinkable polyester film
US4983653A (en) * 1986-11-12 1991-01-08 Diafoil Company, Ltd. Polyester shrinkable film containing benzotriazole
US4985538A (en) * 1986-11-12 1991-01-15 Diafoil Company, Limited Shrinkable polyester film
EP0606663A1 (en) * 1993-01-12 1994-07-20 Agfa-Gevaert N.V. Method of manufacturing a photographic reflective support
WO1999062982A1 (en) * 1998-06-03 1999-12-09 E.I. Du Pont De Nemours And Company Polyester film

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3798C (en) * LENZ & SCHMIDT in Berlin Innovations in file cutting machines
US2675367A (en) * 1951-04-11 1954-04-13 Eastman Kodak Co Bis(4-beta-hydroxyalkoxyphenyl) ketones and polyesters prepared therefrom

Also Published As

Publication number Publication date
GB825549A (en) 1959-12-16
FR1145462A (en) 1957-10-25
DE1187792B (en) 1965-02-25
BE544979A (en)

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