EP 1221500 A1 20020710 - Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber
Title (en)
Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber
Title (de)
Thermochromische synthetische Acrylfasern, daraus hergestellte Artikel und Herstellungsverfahren
Title (fr)
Fibres synthétiques acryliques thermochromiques, articles produits à partir de celles-ci et procédé pour leur fabrication
Publication
Application
Priority
EP 01300031 A 20010104
Abstract (en)
A thermochromic acrylic synthetic fiber comprising an acrylonitrile polymer in which a thermochromic pigment composition with an average particle diameter of from 0.5 mu m to 30 mu m is dispersedly contained in an amount of from 0.5% by weight to 40% by weight based on the weight of the polymer, and being made into fibers; the pigment composition containing (a) an electron-donating color-developing organic compound, (b) an electron-accepting compound and (c) a reaction medium that determines the temperature at which the color-developing reaction of the both compounds takes place. Also disclosed are a processed article of the above thermochromic acrylic synthetic fiber, and a process for producing the thermochromic acrylic synthetic fiber.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
- [Y] US 3852401 A 19741203 - SUZUKI H, et al
- [Y] US 3410819 A 19681112 - ERDLY KOURTZ RAYMOND, et al
- [DY] US 4732810 A 19880322 - KITO TSUTOMU [JP], et al
- [Y] EP 0665119 A1 19950802 - PILOT INK CO LTD [JP] & US 5558699 A 19960924 - NAKASHIMA AKIO [JP], et al
- [Y] EP 0873881 A1 19981028 - PILOT INK CO LTD [JP] & JP H11129623 A 19990518 - PILOT INK CO LTD & JP H115973 A 19990112 - PILOT INK CO LTD
- [Y] EP 0787779 A2 19970806 - PILOT INK CO LTD [JP]
- [A] DATABASE WPI Section Ch Week 198732, Derwent World Patents Index; Class A14, AN 1987-225047, XP002170775
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01300031 A 20010104