Due to the existence of terminal primary hydroxyl groups, it can be used as an active component in suitable polymers. Unlike other ABA type polyethylene glycol siloxane copolymers, it does not contain excess unreacted monofunctional organic glycol. It can react with isocyanate to obtain silicone/polyurethane copolymer, which can endow the polymer with good processing fluidity, improve mold release and lubricity, provide wear resistance, temperature resistance as well as scratch resistance, also improve low temperature flexibility of the polymer. Due to the automatic surface effect of silicone, the polymer has excellent isolation and anti-adhesion properties. Therefore, it is most suitable as a resin modifier for synthetic leather where a high degree of softness is required, it can provide water resistance, softness and flexibility as well as good air permeability. This product is resistant to markers, it has anti-graffiti effect and additional peel-off effect. Besides. It has limited compatibility with aromatic hydrocarbons and can be diluted with esters, ketones and alcohols. This product can increase the hand feel of PU, which make it be used in polyurethane and acrylic resin systems to increase soft, anti-sticking, hydrophobic and oleophobic effects.