Abstract: A dosing set including a container and a dosing apparatus. The container can hold a reagent and be driven to rotate. The dosing apparatus includes a first channel and at least one first spiral rod. The first channel has a first channel first opening connecting with the container to allow the reagent inside the container to enter the first channel, and a first channel second opening connecting with outside of the first channel to allow the reagent to leave the first channel. The first spiral rod is within the first channel and can be driven to rotate in a first direction, to deliver the reagent from the first channel to the first channel second opening, and to control a mass flow rate of the reagent leaving through the first channel second opening by adjusting the rotational speed of itself.

Abstract: A dosing equipment, including: a container; a dosing apparatus, at least partially provided within the container and connecting with an interior and an exterior of the container to convey the reagent from the interior of the container to the exterior of the container; a connector structure connecting the container opening and the dosing apparatus. The connector structure includes a connector penetrating along the axial direction of the container opening, a support member and a bearing member sequentially socketed within the connector. The connector is socketed on an outer periphery of the container opening, and a gap exists between the connector and the support member to receive a sidewall of the container opening. The bearing member is provided outside the dosing apparatus. A first sealing ring and a second sealing ring are provided to seal-connect the connector structure, the dosing apparatus, and the container opening, respectively.

Abstract: A waveguide apparatus comprises an input port having a rectangular cross-section in a plane perpendicular to a direction of propagation. The rectangular cross-section has a short side and a long side. The waveguide apparatus further comprises a plurality of resonant cavities, coupled with the input port, including a first resonant cavity and a second resonant cavity diagonally disposed with respect to each other in the plane perpendicular to the direction of propagation. Each resonant cavity has a square cross-section in the plane perpendicular to the direction of propagation. The waveguide apparatus further comprises an output port coupled with the plurality of resonant cavities on a side opposite the input port. The output port has a rectangular cross-section with a short side and a long side, wherein the short side of the output port's cross-section is perpendicular to the short side of the input port's cross-section.

Abstract: The present invention relates to an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content, comprising a multi-stage polymer dispersion comprising (a) an inner phase comprising at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant having the structure: R1—R2 wherein R1 is an allyl group selected from the group consisting of CH3—CH?CH— and CH2?CH—CH2—, or an acrylic group and R2 is a radical comprising at least two carbon atoms and at least one oxyethylene or oxypropylene unit; (b) an outer phase having a glass transition temperature of from 30° C. to 110° C. containing at least one ethylenic unsaturated monomer (c) at least one pigment; (d) water; and (e) less than 3.0% by weight based on the total weight of the aqueous coating composition of anti-freeze agents.

Abstract: The present invention relates to an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content, comprising a multi-stage polymer dispersion comprising (a) an inner phase comprising at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant having the structure: R1—R2 wherein R1 is an allyl group selected from the group consisting of CH3—CH?CH— and CH2?CH—CH2—, or an acrylic group and R2 is a radical comprising at least two carbon atoms and at least one oxyethylene or oxypropylene unit; (b) an outer phase having a glass transition temperature of from 30° C. to 110° C. containing at least one ethylenic unsaturated monomer (c) at least one pigment; (d) water; and (e) less than 3.0% by weight based on the total weight of the aqueous coating composition of anti-freeze agents.

Abstract: The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.

Abstract: The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.

Abstract: The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.

Abstract: A multi-stage emulsion polymer containing at least one first domain having a glass transition temperature Tg of from −10 to +40° C. and at least one second domain having a Tg of from +50 to 120° C., the weight ratio of the first domain to the second domain being within the range from 90:10 to 50:50. The first and/or the second domain containing from 0.1 to 10% by weight of a nitrogen-coutaining adhesion monomer and the first domain containing at least 10% by weight of vinyl aromatic compounds and/or the second domain containing at least 15% by weight of vinyl aromatic compounds and/or C4 to C12 alkylmethacrylates.