| abstract |
Soluble polyalkylene glycols, polydiisocyanates, and the following general formula (1):n n n n n n n n (Wherein R 1 is a hydrocarbon group having 1 to 20 carbon atoms, R 2 and R 3 are each a hydrocarbon group or halogenated hydrocarbon group having 4 to 21 carbon atoms, X, X 'and X " Z and Z 'are each an oxygen, sulfur or CH 2 group, R 4 is an alkylene group having 2 to 10 carbon atoms, and R 4 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; k is an integer from 0 to 15, n is 0 to 15 when Z is oxygen, 0 when Z is sulfur or CH 2 , n 'is 0 to 15 when Z' is oxygen, Z 'is sulfur or CH And 0 in the case of 2 ), the water-soluble polyurethane obtained from the comb-like hydrophilic diol represented by the formula (I) is an extrusion molding aid for cementitious materials, a thickener for mortar, a thickener for underwater concrete, a binder for ceramic molding, And are used as moisturizers for Are all characterized by low tack and high shape retention. |