[go: up one dir, main page]

GB936858A - Improvements relating to ethylene terephthalate polyesters - Google Patents

Improvements relating to ethylene terephthalate polyesters

Info

Publication number
GB936858A
GB936858A GB42490/59A GB4249059A GB936858A GB 936858 A GB936858 A GB 936858A GB 42490/59 A GB42490/59 A GB 42490/59A GB 4249059 A GB4249059 A GB 4249059A GB 936858 A GB936858 A GB 936858A
Authority
GB
United Kingdom
Prior art keywords
polyester
borate
acid
hydroxyethoxy
bis
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
GB42490/59A
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 GB936858A publication Critical patent/GB936858A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68Polyesters containing atoms other than carbon, hydrogen and oxygen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78Preparation processes
    • C08G63/82Preparation processes characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Details Of Garments (AREA)

Abstract

Ethylene terephthalate polyester compositions having a high melt viscosity but which are spinnable to filaments having a low relative viscosity have dissolved in them a boron compound in such amount that the polyester contains at least 0,5 mol. per cent of boron. Preferably the compositions are made by (a) adding to the polyester precursor 3-20 mol. per cent of a soluble boric acid, organic borate or inorganic borate of formula Xm-1Bq\Op where X is hydrogen or metal having the valence of n, m is 1-7, n is 1-3, p is 1-8 and q is 2-15 and wherein <F\1> and (b) subjecting the composition to polyesterification conditions in the presence of a catalyst (e.g. antimony trioxide, tetraisopropyl titanate or manganous acetate). The polyesterification mixture may also include titanium dioxide and phosphoric acid. The boron compound may also be added to the preformed polyester. Specified boron compounds are boric acid, boric oxide, sodium tetraborate, methyl metaborate, methyl polyborate, triethyl borate, triphenyl borate, glycol borate and glycol metaborate. The polyester is one in which at least 75% of the residues are ethylene terephthalate radicals but it may also contain the residues of another dicarboxylic acid (e.g. adipic, sebacic, isophthalic, 5-(sodium sulpho)-isophthalic, bibenzoic, hexahydroterephthalic, diphenoxyethane-4,41-dicarboxylic or p,p1-sulphonyl bibenzoic acid) or another glycol (e.g. tetramethylene-, hexamethylene-, decamethylene-, 2,2-dimethyl-1:3-propylene-, trans-p-hexahydroxylylene- or diethylene-glycols, or bis-p(b -hydroxyethoxy) benzene, bis-1,4-(b -hydroxyethoxy)-2,5-dichlorobenzene, or bis-[p-(b -hydroxyethoxy) phenyl] difluoromethane. The polyesters may be made into staple fibres having a less tendency to "pill". Thus polyethylene terephthalate containing 2,0% by weight of boric acid may be melt-spun into yarn which is drawn 3,26% in a water bath at 100 DEG C., and then heated in an oven maintained at 100 DEG C. whilst free to relax and finally cut up into 1,5 inch lengths. Specifications 578,079 and 841,230 are referred to.
GB42490/59A 1958-12-31 1959-12-14 Improvements relating to ethylene terephthalate polyesters Expired GB936858A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1244142XA 1958-12-31 1958-12-31
US78405858A 1958-12-31 1958-12-31

Publications (1)

Publication Number Publication Date
GB936858A true GB936858A (en) 1963-09-18

Family

ID=26822563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42490/59A Expired GB936858A (en) 1958-12-31 1959-12-14 Improvements relating to ethylene terephthalate polyesters

Country Status (2)

Country Link
FR (1) FR1244142A (en)
GB (1) GB936858A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6630388B2 (en) * 2001-03-13 2003-10-07 National Institute Of Advanced Industrial Science And Technology Double-gate field-effect transistor, integrated circuit using the transistor and method of manufacturing the same

Also Published As

Publication number Publication date
FR1244142A (en) 1960-10-21

Similar Documents

Publication Publication Date Title
US4136089A (en) Molded articles of crystalline poly (ethylene/alkylene) terephthalates which crystallize rapidly
US6214916B1 (en) Composition for laser marking
CA1052489A (en) Glass fibre-reinforced flame-resistant thermoplastic polyester moulding compositions
US4107149A (en) Poly(ethylene/alkylene) terephthalates which crystallize rapidly
US4086212A (en) Poly(ethylene/alkylene) terephthalates which crystallize rapidly
GB988548A (en) Method for preparing polyester resins
GB1130558A (en) Processes for preparing polyesters
GB953096A (en) Polyolefin compositions
KR101971699B1 (en) Method for the preparation of polyalkylene terephthalate resin compositions employing titanium-containing catalyst complex
GB1199115A (en) Producing Sheath/Core Conjugate Polyester Filaments
GB1388097A (en) Flame-resistant synthetic linear polyesters
GB1026993A (en) Polyester compositions for bonding glass fibre mats
RU2006122265A (en) COMPOSITION OF COMPLEX AROMATIC POLYESTER FOR MANUFACTURING CONTAINERS FORMED WITH EXPLOSION WITH BLOW
GB936858A (en) Improvements relating to ethylene terephthalate polyesters
ES233041A1 (en) Preparation of polyesters using an onium compound as a catalyst
JPS62295946A (en) Polyester molding composition and its production
GB997398A (en) Phosphorus-containing fibre-forming polyesters
US4163100A (en) Rapidly crystallizing polyester compositions
US3325454A (en) Preparation of polyesters
GB1093897A (en) Process of preparing polyester resin
JP2001172823A (en) Flame-retardant polyester fiber and method for producing the same
US3929719A (en) Process for the bulk-dyeing of linear polyesters
JPH037728A (en) Production of polyester
GB924463A (en) Linear polyesters and their production
GB1112021A (en) Polycarbonates with increased crystallizability