Title:
ANTIOXIDANT, METHOD FOR PRODUCING SAME, AND ELASTIC POLYURETHANE FIBER
Document Type and Number:
WIPO Patent Application WO/2018/092469
Kind Code:
A1
Abstract:
This antioxidant contains a polyurethane compound represented by formula (1). Y1 is a diol residue, and a plurality of Y1 moieties may be the same as, or different from, each other. R1 is an aromatic diisocyanate residue, and a plurality of R1 moieties may be the same as, or different from, each other. X1 is a residue of a hindered phenol compound having k or more hindered phenolic hydroxyl groups, and a plurality of X1 moieties may be the same as, or different from, each other. m is an integer of 1 or higher, n is an integer of 1 or higher, and k is an integer of 2 or higher.
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Inventors:
YOSHIZATO AKIHIKO (JP)
TANO HIROYUKI (JP)
TANO HIROYUKI (JP)
Application Number:
PCT/JP2017/036651
Publication Date:
May 24, 2018
Filing Date:
October 10, 2017
Export Citation:
Assignee:
SANKO CO LTD (JP)
International Classes:
C08L75/04; C08G18/10; C08G18/32; D01F1/10; D01F6/70
Foreign References:
| CA969696A | 1975-06-17 | |||
| JPS6147749A | 1986-03-08 | |||
| JPH01271410A | 1989-10-30 | |||
| JPS57185374A | 1982-11-15 | |||
| JPS6147819A | 1986-03-08 | |||
| JP2007239157A | 2007-09-20 | |||
| JPH07258463A | 1995-10-09 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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