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Title:
FIBER SIZING AGENT
Document Type and Number:
WIPO Patent Application WO/2024/034370
Kind Code:
A1
Abstract:
Provided is a technology that realizes sizing performance and storage stability for a polyurethane resin aqueous dispersion used for a fiber sizing agent. This fiber sizing agent includes aqueous dispersion of a polyurethane resin. The polyurethane resin includes, as constituting components, a polyol (a) component that does not have either a sulfonic acid group or a sulphonic acid salt group; a polyisocyanate (b) component; and a compound (c) component that has at least one of a sulfonic acid group and a sulfonic acid salt group, and that has an active hydrogen group. The polyol (a) component includes polyester polyol (a1) and polyether polyol (a2). The content of the polyether polyol (a2) component is 10-30 parts by mass with respect to the combined amount, which is 100 parts by mass, of the polyol (a) component, the polyisocyanate (b) component, and the compound (c) component.

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Inventors:
SHIREN MINARI (JP)
UEDA RYOJI (JP)
MIZUKAMI SHINYA (JP)
Application Number:
PCT/JP2023/026929
Publication Date:
February 15, 2024
Filing Date:
July 24, 2023
Export Citation:
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Assignee:
DKS CO LTD (JP)
International Classes:
D06M15/564; C03C25/10; C08G18/00; C08G18/08; C08G18/40; C08G18/73; C08G18/75
Foreign References:
JPH09241348A1997-09-16
JPS5262400A1977-05-23
JP2013253364A2013-12-19
JP2009203316A2009-09-10
JPH11504965A1999-05-11
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