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31results about How to "Equal performance" patented technology

Aqueous polyhydroxyurethane resin dispersion, method for producing said aqueous dispersion, gas-barrier resin film produced using said aqueous dispersion, aqueous polyhydroxyurethane resin dispersion composition containing clay mineral, gas-barrier coating agent comprising said composition, and gas-barrier resin film

There are provided: an aqueous polyhydroxyurethane resin dispersion which can achieve long-term storage that is a requirement for industrial applications, and with which a coating film having an excellent gas-barrier property can be formed; an aqueous dispersion composition containing a complex of the resin and a clay mineral; and a film having an excellent gas-barrier property, which is produced using the aqueous polyhydroxyurethane resin dispersion or the aqueous dispersion composition. Specifically, there are provided: an aqueous polyhydroxyurethane resin dispersion containing a polyhydroxyurethane resin finely dispersed in water, wherein the polyhydroxyurethane resin contains a repeating unit represented by formula (1) as a basic structure and has a carboxyl group-containing chemical structure moiety represented by formula (6) in the structure; an aqueous dispersion composition containing this polyhydroxyurethane resin component and a layered clay mineral favorably made into a composite; and a gas-barrier resin film which is produced using the aqueous polyhydroxyurethane resin dispersion or the aqueous dispersion composition.
Owner:DAINICHISEIKA COLOR & CHEM MFG CO LTD

Aqueous polyhydroxyurethane resin dispersion, method for producing said aqueous dispersion, gas-barrier resin film produced using said aqueous dispersion, aqueous polyhydroxyurethane resin dispersion composition containing clay mineral, gas-barrier coating agent comprising said composition, and gas-barrier resin film

An aqueous polyhydroxyurethane resin dispersion, which can be stored for a long time, and with which a coating film having a high gas-barrier property can be formed; an aqueous dispersion composition containing a complex of the resin and a clay mineral; and a film having a high gas-barrier property produced using the aqueous polyhydroxyurethane resin dispersion or the aqueous dispersion composition are provided. The aqueous polyhydroxyurethane resin dispersion comprises a polyhydroxyurethane resin finely dispersed in water, where the polyhydroxyurethane resin has in its structure, a repeating unit represented by formula (1) as a basic structure and a carboxyl group-containing chemical structure moiety represented by formula (6), described in this specification. The aqueous dispersion composition comprising the polyhydroxyurethane resin and a layered clay mineral form composite. The film having a high gas-barrier is produced using the aqueous dispersion or the aqueous dispersion composition.
Owner:DAINICHISEIKA COLOR & CHEM MFG CO LTD

Coating additive and preparation method and using method thereof

InactiveCN109434013AEasy to produceEasy to pack and shipFoundry mouldsFoundry coresSolventChemistry
The invention relates to a coating additive. The coating additive is prepared from the following components in percentage by weight: 12-18% of aluminium-magnesium silicate, 2-5% of white carbon black,0.5-0.8% of PVB, 4-7% of phenolic resin powder, 3-5% of maleated rosin powder, 4-8% of attapulgite, 1-2% of sodium hexametaphosphate, 4-8% of organobentonite, 10-15% of spodumene, 15-20% of mica powder, 15-20% of anhydrous sodium sulphate and 6-10% of a dispersing agent. A preparation method of the coating additive comprises the following steps that all the components are mixed according to the weight percentage, stirring is conducted for 10-15 minutes by a spiral rod stirrer, and after even stirring, the powdery coating additive is obtained; and during using, aggregate and a solvent only need to be added into the coating additive, stirring is conducted for at least 20 min by a high-speed dispersion machine, and thus the coating additive can be applied. Compared with the prior art, the coating additive is easy to produce and convenient to package and transport, and all aspects of performance of casting coating made of the coating additive is superior.
Owner:SHANGHAI ZONGHUA IND

Wheel for a hydraulic machine, a hydraulic machine including such a wheel, and an energy conversion installation equipped with such a hydraulic machine

The invention relates to a wheel (R) of the Francis type that comprises a ring (1) with revolution symmetry about the rotation axis (Z) of the wheel (R), and curved blades (21, 22) connected to the ring (1) and each having an outer peripheral edge (212, 222) and an inner central edge (211, 221). The connection points (B21, B22) between the ring (1) and the inner central edges (211, 221) of the blades (21, 22) are located on a same circle (C20) centered on the axis (Z). The connection points (A21, A22) between the ring (1) and the outer peripheral edges (212, 222) of the blades (21, 22) are located on at least two distinct circles (C21, C22) (D21, D22) centered on the axis (Z).
Owner:GE RENEWABLE TECH
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