Abstract:
A polyglycidol, polyglycidol alkyl ether, polyglycidol alkyl ester or the like is obtained by reacting an oxirane compound represented by the general formula (1) below such as glycidol in the presence of an activated carbon powder, if necessary, using an initiator such as a polyhydric alcohol, aliphatic alcohol or aliphatic carboxylic acid. [Chemical formula 1] (1) (In the formula, R1 and R2 may be the same as or different from each other and respectively represent an H, a branched or straight chain alkyl group having 1-30 carbon atoms, an aryl group or a functional group expressed as -CH2-M (wherein M represents an OH, F, Cl, Br or -OR3 (wherein R3 represents an alkyl group having 1-20 carbon atoms, an allyl group or an aryl group)).) By this method, an object compound can be obtained in high quality with high yield, and the catalyst can be separated easily.
Abstract:
The present invention Nos. 1-3 provide a spandex filament which is excellent in view of a recovering ability of elasticity, high tensile strength, and hydrolysis resistance, and a polyurethane which can provide thereof and, further, a polyester polyester diol obtained from a specified diol. Further, the present invention No. 4 provides a polyester polyol containing a polyol having an ultraviolet ray-absorbable group, a lactone-modified polyol therefrom, and a polyester polyol containing other polyol components and adipic acid as constructing component units, and provides a polyurethane having washing resistance obtained therefrom and, further provides a spandex filament comprising the polyurethane. The present invention No. 5 provides a dialkyl amino group-contained additive having a high solubility to a DMAC solvent which protects a spandex polymer from deterioration or discoloration, and which is employed for a spandex polymer having an improved permanent extension property, and a polyurethane composition and a spandex composition having an improved permanent extension property. Still further, the present invention No. 6 provides a polyurethane having a soft feeling, an excellent hydrolysis resistance, a wrinkle resistance, and an adhesive property, and which is particularly excellent as an artificial leather.
Abstract:
Polyglycerols significantly reduced in the content of polyglycerols having a cyclic structure formed by the removal of a water molecule from the polyglycerol molecule; and a polyglycerol/fatty acid ester having excellent surface activity. Two moles or more of glycidol and a catalyst are gradually added to and reacted with 1 mol of glycerol to obtain polyglycerols in which the ratio of the sum of polygylcerols (1) to the sum of polyglycerols having a cyclic structure (2) is (70% or more)/(30% or less) (the total of both is 100 wt.%) in terms of intensity ratio as determined by liquid chromatography/mass spectrometry and which have an average degree of polymerization of 2 or higher. Reacting the polyglycerols with a fatty acid gives the corresponding polyglycerol/fatty acid ester.
Abstract:
A polycarbonate polyol composition which can be used to prepare polycarbonate(meth)acrylate and urethane(meth)acrylate compositions is obtained by the ester interchange reaction of a polycarbonate diol composition with a triol and/or tetraol. The (meth)acrylate compositions have excellent photo and electron beam curability and the cured layers prepared therefrom have excellent heat resistance under moisture conditions.