High performance polyurethane pouring sealant was prepared with polytetramethylene glycol(PTMG),totylene diisocyanate(TDI) and methylene bis ortho chloroaniline(MOCA) solution,and the effects of the equivalent ratio n (—NH 2)/ n (—NCO), w (—NCO),finished cure time and relative humidity on the mechanical and electric properties were investigated.

Cationic crosslinking blocked polyurethane(BPU)/ PAE sequential interpenetrating polymer networks (BPU/PAE IPNs) were prepared by the reaction of polyaminamide and epihalohydrin in the medium of cationic crosslinking blocked polyurethane.

Imidazole blocked polyurethane/PAE composite paper strengthening agents were prepared through the reaction of polyaminamide and epichlorohydrin in imidazole blocked polyurethane(BPU) N-methyl pyrrolidone solution.

Anionic imidazole-blocked polyurethane(ABPU) was prepared by the reaction of HDI,DMPA,bisphnol A,polyesterglycol and imidazole as blocking agent.

The feasibility study of direct application of rosin in the hydroxyl component of polyurethane paint is conducted.

The high-solid acrylate-modified polyurethane paint is prepared with high-solid high-hydroxyl low-viscosity hydroxyl acrylate resin and synthetic fatty acid resin as main raw materials.

Study on flame-retardant modification of PU coatings by brominated epoxy;

Thought and practice about the multiple film-forming mechanisms in PU coatings

The mechanical property of the film reached up to that of two-components solvent based PU coatings,and the coatings possessed excellent anti-corrosive property.