Abstract: An electric mop includes a handle, a flopping member connected to the handle. The mopping member includes a driving member with an output thereof connected to a pair of cleaning portions. The driving member includes a motor with an output shaft thereof connected to a driving bevel gear, a reversing gear formed a right-angle transmission relationship with the driving bevel gear, and a pair of cylindrical gear groups respectively connected to the pair of cleaning portions. The difference between the number of cylindrical gears of the two groups is singular. The structure drives the two cleaning portions respectively rotation forward and backward by the driving member so that force of the two cleaning portions can be offset each other for users to keep balance and steadily control a moving direction of the electric mop, the two cleaning portions are provided for ensuring a large cleaning surface and cleaning some corners.

Abstract: A cleaning robot includes a housing including a cover, a base and a pair of lateral plates, a cleaning device and a driver. The cleaning device is mounted on the base to form a tilt angle with ground and includes a connecting member and a cleaning member connected to the connecting member. The cleaning member includes a water storage room mounted on the connecting member and a cleaning portion connected to the water storage room. The driver is mounted on the base and tightly fixed with the connecting member for driving the connecting member to rotate so that the cleaning member is following rotating with the connecting member. The cleaning portion can clean water marks or grease marks on the ground during the cleaning member rotation. Thus, users are not required to clean water marks or grease marks on the ground, thereby the convenience of users is improved.

Abstract: Disclosed are cross-linkable and cross-linked, functionalized poly(alkylene carbonates), processes for making them, and their use in photoresist compositions.

Abstract: The present invention is directed to degradable blends containing polylactide, a degradable impact modifier, and a degradable plasticizer for use in packaging films. The degradable impact modifier can be a degradable, non-toxic elastomer or a degradable, non-toxic, non-elastomeric polymer having a low glass transition temperature, such as polycaprolactone and poly(ethylene glycol). The degradable plasticizer can be any plasticizer having a relatively low molecular weight, a high degree of miscibility with polylactide, and non-toxicity. The film has excellent flexibility and impact strength for packaging applications.

Abstract: The present invention is directed to degradable blends containing polylactide, a degradable impact modifier, and a degradable plasticizer for use in packaging films. The degradable impact modifier can be a degradable, non-toxic elastomer or a degradable, non-toxic, non-elastomeric polymer having a low glass transition temperature, such as polycaprolactone and poly(ethylene glycol). The degradable plasticizer can be any plasticizer having a relatively low molecular weight, a high degree of miscibility with polylactide, and non-toxicity. The film has excellent flexibility and impact strength for packaging applications.

Abstract: A method is provided for the synthesis of environmentally degradable block copolymers which includes the sequential polymerization of polymer-forming materials in the presence of one or more polymerization reaction accelerants and catalysts. The accelerants are a class of hydrogen-labile compounds which act as polymerization initiators and accelerate the polymerization rate significantly. The environmentally degradable block copolymers produced include those comprising segments of polymers of alkylene oxides, trimethylene carbonates, lactones and cyclic esters of hydroxycarboxylic acids.