JPS56154515A - Polyester fiber - Google Patents

Polyester fiber

Info

Publication number
JPS56154515A
JPS56154515A JP5351580A JP5351580A JPS56154515A JP S56154515 A JPS56154515 A JP S56154515A JP 5351580 A JP5351580 A JP 5351580A JP 5351580 A JP5351580 A JP 5351580A JP S56154515 A JPS56154515 A JP S56154515A
Authority
JP
Japan
Prior art keywords
acid
formula
sec
polybutylene terephthalate
dissolution rate
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.)
Pending
Application number
JP5351580A
Other languages
Japanese (ja)
Inventor
Masanori Takeuchi
Hiroyuki Ikeuchi
Yoshio Abe
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP5351580A priority Critical patent/JPS56154515A/en
Publication of JPS56154515A publication Critical patent/JPS56154515A/en
Pending legal-status Critical Current

Links

Landscapes

  • Artificial Filaments (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)

Abstract

PURPOSE: The titled fibers, prepared by copolymerizing the third component, e.g. a metallic salt of a sulfoisophthalic acid and isophthalic acid, etc. with polybutylene terephthalate in a specific proportion, and spinning the resultant copolymer, having a specified dissolution rate constant, basic dyeable and subjectable to the alkali treatment.
CONSTITUTION: (A) A metallic salt of a sulfoisophthalic acid expressed by formula I [R1 and R2 are H, -(CH2)nH, -(CH2)nOH (n is an integer 1W6); M is alkali (earth) metal] and (B) isophthalic acid, adipic acid and/or sebacic acid (or derivatives thereof) in the total amount <15mol% are copolymerized with polybutylene terephthalate to satisfy the relations of formulas II an III [y and x are the copolymerization ratios (mol%) of the compounds (A) and (B)] at the same time (the so- called area surrounded by points C, D, E and F). The copolymer is then melt spun to give the aimed fibers having a dissolution rate constant k(cm/sec) of formula IV [R is the weight fraction of insoluble polymeric substances after t(sec); D is the denier of the single fiber] satisfying the relation of formula V on treatment in a 3% aqueous solution of NaOH at 100°C.
COPYRIGHT: (C)1981,JPO&Japio
JP5351580A 1980-04-24 1980-04-24 Polyester fiber Pending JPS56154515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5351580A JPS56154515A (en) 1980-04-24 1980-04-24 Polyester fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5351580A JPS56154515A (en) 1980-04-24 1980-04-24 Polyester fiber

Publications (1)

Publication Number Publication Date
JPS56154515A true JPS56154515A (en) 1981-11-30

Family

ID=12944951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5351580A Pending JPS56154515A (en) 1980-04-24 1980-04-24 Polyester fiber

Country Status (1)

Country Link
JP (1) JPS56154515A (en)

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