Abstract: A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion is prepared by using a tri-functionality polyether polyol as part of the polyols for forming the prepolymer and a hydrophilic amino siloxane co-chain extender, and can exhibit superior performance properties such as enhanced color fastness, improved low temperature stability, good anti-stickiness, bally flex resistance, anti-abrasion and mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.

Abstract: A water-saving flow regulator includes a housing; a flow regulating device within the housing and having a shaft hole that has a periphery including a plurality of through holes; a switching shaft movable between an initial position and a second position, sleeved with a sealing part, and inserted into the shaft hole; and a water diversion body disposed above the flow regulating device and having a bottom portion that forms a chamber. When the switching shaft is in the initial position, the sealing part closes a first flow passage so that water only flows out of a second flow passage. When the switching shaft is in the second position, the sealing part of the switching shaft moves away from the flow regulating device, the second flow passage is open and remains open due to water pressure so that water flows out of both passages.

Abstract: A water-saving flow regulator with switchable flow volume includes a housing with a flow regulating device, a switch shaft and a water diversion body. The switch shaft is sleeved with a sealing part. The flow regulating device has a shaft hole. The switch shaft is inserted in the shaft hole. A first flowing passage is formed between the switch shaft and the shaft hole wall. The periphery of the shaft hole has a plurality of through holes which form a second flowing passage. The bottom portion of the water diversion body forms a chamber. The switch shaft has an initial position and a second position; in the initial position, water only flows out of the second flowing passage; in the second position, the second flowing passage is open, water flows out of the first and second flowing passage.

Abstract: The present invention provides nucleic acid constructs encoding microRNA molecules that can be used to confer salt tolerance on plants. The invention further provides transgenic plants comprising the nucleic acids, as well as methods of using them to confer salt tolerance on plants.