SUSTAINABLY HYDROPHILICIZING AGENT FOR POLYOLEFIN FIBER AND IMPARTING POLYOLEFIN FIBER WITH SUSTAINABLE HYDROPHILICITY USING THE SAME

Japanese Patent JP3485404

B

PURPOSE: To obtain the subject agent capable of forming uniformal wet nonwoven fabrics, comprising a specific polyether-polyester block copolymer and a polyorganosiloxane.
CONSTITUTION: First, a copolymerization is conducted between a mono to hexahydric aliphatic hydroxy compound such as ethylene glycol and a 2-4C alkylene oxide such as ethylene oxide to form a polyether block made up of a polyoxyalkylene unit containing ≥40mol% of oxyethylene unit at 5-200 moles per single OH group of the aliphatic hydroxy compound; secondly, ε-caprolactone is subjected to ring opening polymerization to polymerize the product with the terminal hydroxyl groups of the polyether block to form a polyester block made up of polyoxycaproyl unit, thus obtaining a polyether-polyester block copolymer in which the molar ratio of the total recurring oxycaproyl units to the total recurring oxyalkylene units is (1:1) to (1:10). Next, 100 pts.wt. of this block copolymer is blended with 100-250 pts.wt. of a polyorganosiloxane to obtain the objective hydrophilicizing agent.

WO/1997/003108	POLYETHER AMINE MODIFICATION OF POLYPROPYLENE
JP05194570	BIPHOSPHITE
JP59051907	IMPARTING HYDROPHILICITY TO SURFACE OF POLYMERIC SUBSTANCE

Inoue, Keita
Suzumura, Hiroyuki

JP1995000328392

October 24, 2003

November 22, 1995

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TAKEMOTO OIL & FAT CO LTD

C08G65/32; C08G63/08; C08G63/664; C08G65/321; D04H1/42; D06M13/02; D06M13/11; D06M13/148; D06M13/51; D06M15/53; D06M15/643; D06M101/00; D06M101/16; D06M101/18; C08G65/00; C08G63/00; D04H1/42; D06M13/00; D06M15/37; (IPC1-7): D06M15/53; C08G63/664; C08G65/321; D04H1/42; D06M15/643

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