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    • 55. 发明公开
    • POLYURETHANE RESIN FOR MOISTURE-PERMEABLE WATER-PROOF MATERIALS, AND POLYURETHANE RESIN COMPOSITION
    • 聚氨酯树脂透湿防水材料及聚氨酯树脂组合物
    • EP2730597A4
    • 2015-03-18
    • EP12811148
    • 2012-06-20
    • SANYO CHEMICAL IND LTD
    • NAGATANI YOSHIHIROYOKOI TOMOMI
    • C08G18/42
    • C08G18/4804C08G18/0823C08G18/345C08G18/4018C08G18/4261C08G18/4676C08G18/4833C08G18/4887C08G18/7671C08G2170/90C08G2190/00C08L75/08C09J175/04D06M15/564C08G18/12C08G18/3206C08G18/282
    • The present invention aims to provide a polyurethane resin for moisture-permeable waterproof materials which is excellent in all of the moisture permeability, waterproofness, and resistance to washing. The polyurethane resin for moisture-permeable waterproof materials according to the present invention is a polyurethane resin for moisture-permeable waterproof materials, obtainable by reacting an active hydrogen component (A1) with an organic polyisocyanate component (B), wherein the active hydrogen component (A1) includes an oxyethylene group-containing high molecular weight diol (a1), and a compound (S1) containing at least one active hydrogen atom and being represented by the following formula (1): wherein X 1 represents a residue produced by removing c piece (s) of active hydrogen atom(s) from an active hydrogen-containing compound having a valence of m, the c representing an integer satisfying the inequality: 1 ‰¤ c ‰¤ m, the m representing an integer of 1 to 20; X 2 represents a residue produced by removing one piece of active hydrogen atom from an active hydrogen-containing compound, and a plurality of X 2 s may be the same as or different from one another; X 1 and X 2 may be the same as or different from each other; Y represents a residue produced by removing all of carboxyl groups from an aromatic polycarboxylic acid having a valence of 3 or more, wherein an aromatic ring in Y consists of carbon atoms, the carbon atoms are each optionally bound to a halogen atom and/or a substituent other than a carboxyl group, and at least one of the carbon atoms has no substituent; a represents an integer of not smaller than 1; b represents an integer of not smaller than 0; and a and b satisfy the inequality: 2 ‰¤ a+b ‰¤ d-2, wherein d represents the number of hydrogen atoms bound to the carbon atoms forming the aromatic ring of the aromatic polycarboxylic acid when all of substituents including a carboxyl group in the aromatic polycarboxylic acid are substituted by hydrogen atoms, i. e . , the number of substitutable sites on the aromatic ring.