EP 1963039 A4 20150429 - FIRE RETARDANT COMPOSITIONS AND METHODS AND APPARATUSES FOR MAKING THE SAME
Title (en)
FIRE RETARDANT COMPOSITIONS AND METHODS AND APPARATUSES FOR MAKING THE SAME
Title (de)
FEUERHEMMENDE ZUSAMMENSETZUNGEN UND VERFAHREN UND VORRICHTUNGEN ZU DEREN HERSTELLUNG
Title (fr)
COMPOSITIONS IGNIFUGES ET PROCEDES ET APPAREILS DE PREPARATION AFFERENTS
Publication
Application
Priority
- US 2006060921 W 20061115
- US 28210805 A 20051116
- US 66068106 A 20061115
Abstract (en)
[origin: CA2670051A1] A method for forming yarn provides for forming an intermediate product be ing a fire retardant and heat resistant cohesive elongated network of fibers in a single operation by stretching and breaking filaments of a ribbon like tow starting material of longitudinally aligned filaments. The intermediate product may be wool-like with wavy and randomly oriented fibers formed by f rom the fragmented filaments. The single drafting operation includes directi ng the tow through first and second pairs of rollers, the second pair rotati ng faster than the first. The intermediate product may be spun directly into yarn in one spinning/twisting operation. The fire retardant and heat resist ant yarn so produced may include 100% oxidized polyacrylonitrile fibers havi ng an average length greater than about 15 cm. The yarn may be knitted or ot herwise formed into fire-retardant and heat resistant fabrics or other produ cts used in various applications.
IPC 8 full level
B23B 27/04 (2006.01); D01G 1/08 (2006.01); D02G 3/44 (2006.01); D03D 15/00 (2006.01)
CPC (source: EP)
D01G 1/08 (2013.01); D02G 3/443 (2013.01); D10B 2321/10 (2013.01)
Citation (search report)
- [XI] GB 2066305 A 19810708 - TOHO BESLON LTD
- [XI] FR 2322223 A1 19770325 - MORGANITE MODMOR LTD [GB]
- [XI] WO 2005054554 A1 20050616 - KUREHA CHEMICAL IND CO LTD [JP], et al
- [XI] US 2003209428 A1 20031113 - HIRAHARA SATOSHI [JP], et al
- [I] US 3533743 A 19701013 - PRESCOTT ROGER, et al
- [X] US 6477740 B1 20021112 - HANSEN NIEL W [US]
- [XI] WO 0077283 A2 20001221 - DU PONT [US], et al
- See references of WO 2007059510A2
Citation (examination)
- EP 1205587 A2 20020515 - RIETER AG MASCHF [CH]
- US 4583266 A 19860422 - TANGO YASUO [JP], et al
- US 2096795 A 19371026 - HENRY DREYFUS
- JP S5580526 A 19800617 - TORAY INDUSTRIES
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
CA 2670051 A1 20070524; CA 2670051 C 20150526; EP 1963039 A2 20080903; EP 1963039 A4 20150429
DOCDB simple family (application)
CA 2670051 A 20061115; EP 06846310 A 20061115