摘要:
The invention relates to a process for preparing a polyamide dispersion in polyol, the polyamide dispersion in polyol thus obtained, the use of a polyether amine in the preparation of the polyamide dispersion in polyol, the use of the polyamide dispersion in polyol for preparing a polyurethane, a respective process and the polyurethane.
摘要:
A polyurethane elastomer including a polymerization product of an amide group-including compound, a polyol compound, a polybasic acid compound, and a diisocyanate compound, a thermoplastic resin composition including the polyurethane elastomer, a molded article made of the thermoplastic resin composition, and a method of preparing the polyurethane elastomer.
摘要:
The invention relates to compositions and articles containing a cross-linked polymer matrix and an immobilized active liquid, as well as methods of making and using the same.
摘要:
The present invention relates to a modified polyaspartic acid ester containing a polyaspartic acid ester (A) and polymer fine particles (B), wherein the polymer fine particles have a volume average particle diameter of 0.01 to 0.6 µm and an amount of the polymer fine particles is 0.5 to 70 % by weight, and a curable resin composition containing a polyaspartic acid ester (A), polymer fine particles (B) having a volume average particle diameter of 0.01 to 0.6 µm, and a polyisocyanate (C).
摘要:
The invention relates to a liquid telechelic prepolymer comprising the reaction product of a telechelic polyamide and a polyisocyanate having two or more isocyanate groups, the telechelic polyamide is characterized as having repeating units connected by linkages between the repeating units and having two or more Zerewitinoff groups that chemically react with isocyanate groups to form a chemical bond between a portion of said Zerewitinoff groups and the isocyanate group, further wherein the telechelic polyamide comprises repeat units connected with chemical linkages characterized as being amide linkages and at least 80 % of the amide linkages are characterized as being tertiary amide linkages, wherein said telechelic prepolymer is the reaction product of a hydroxyl terminated polyamide with a polyisocyanate and said telechelic polyamide is comprised of one or more repeat units from a lactone of 2 or 4 to 10 carbon atoms and/or a hydroxyl carboxylic acid of 3 to 30 carbon atoms. The liquid telechelic prepolymer can be formed into a dispersion in an aqueous media and can be chain extended and formed into a self-supporting film, a coating, or an adhesive.