EP 0052949 A3 19830720 - A METHOD OF SIZING HYDROPHOBIC YARNS, AND SIZING COMPOSITIONS FOR USE IN WATER JET LOOMS
Title (en)
A METHOD OF SIZING HYDROPHOBIC YARNS, AND SIZING COMPOSITIONS FOR USE IN WATER JET LOOMS
Publication
Application
Priority
- US 20254380 A 19801031
- US 31156181 A 19811016
Abstract (en)
[origin: EP0052949A2] A sizing composition for hydrophobic yarn prior to weaving comprises an acid pH latex of a free radical initiated vinyl polymer and drying the yarn. The polymer has a weight average molecular weight of from about 300,000 to about 2,500,000, and in dried film form is hydrophobic, not redispersible in a solution at a low pH and redispersible in an alkaline aqueous medium. The polymer is prepared from monomers comprising about 8% to about 14% by weight ethylenically unsaturated acid. The average solubility parameter of the monomers in the polymer is between about 9.0 and about 9.5; the calculated polymer Tg is between about -20 DEG C. and 20 DEG C. Preferred yarns are nylon and polyester. Also disclosed are methods of sizing synthetic hydrophobic yarns with the size compositions and weaving the sized yarns.
IPC 1-7
IPC 8 full level
D06M 15/263 (2006.01)
CPC (source: EP)
D06M 15/263 (2013.01)
Citation (search report)
- US 4189416 A 19800219 - WILLIAMS CHARLES R [US]
- GB 723076 A 19550202 - MONSANTO CHEMICALS
- DE 1014515 B 19570829 - ONDERZOEKINGS INST RES
- US 4172930 A 19791030 - KAJITANI KOICHI [JP], et al
- GB 1439611 A 19760616 - ALLIED COLLOIDS LTD
- FR 1205957 A 19600205 - ICI LTD
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0052949 A2 19820602; EP 0052949 A3 19830720; AU 554753 B2 19860904; AU 7697781 A 19820506
DOCDB simple family (application)
EP 81305084 A 19811028; AU 7697781 A 19811030