3results about How to "Guaranteed water blocking effect" patented technology

The utility model provides a pot body assembly and a cooking utensil with the pot body assembly, and the pot body assembly comprises a housing which is provided with a via hole which is communicated with the interior and the exterior of the housing; the mounting frame is arranged in the shell; the trigger structure is movably mounted on the mounting frame, the trigger structure is provided with a trigger head located at the via hole, and the trigger head can be pressed to drive the trigger structure to move; the elastic sealing cap is arranged at the via hole and covers the trigger head, and the elastic sealing cap abuts against the shell through the mounting frame. According to the technical scheme, the problem that water easily flows into the cooker body assembly in the prior art can be effectively solved.

This invention discloses a PHA water-based water-blocking coated pulp molded seedling pot containing inorganic fillers and blended polymers, and its preparation method, belonging to the technical fields of seedling containers, pulp molding, and water-based water-blocking coatings. This invention uses polyhydroxyalkanoates combined with sheet-like inorganic fillers to construct a dense water-based barrier layer and innovatively designs a sidewall drainage channel connecting to the bottom. Through a differentiated coating structure, this invention breaks the deadlock between moisture softening during the seedling stage and limited root penetration after transplanting, achieving a precise balance between excellent wet strength and free root growth. This solution eliminates fluorine-containing additives, ensuring the product's biodegradability throughout its entire life cycle.

This invention relates to the field of packaging materials technology, and more particularly to a low water vapor transmission rate coating for packaging materials and its preparation method. The aforementioned low water vapor transmission rate coating for packaging materials comprises, by mass percentage: 25-40% modified polyurethane resin, 5-20% linear alkane compound, 3-15% hydrophobic modified acrylic resin, 1-5% amino-terminated polyamide amine, 1-5% silica microparticles, 3-5% hydroxyethyl cellulose, 0.1-0.5% amino curing agent, 1-3% water-based additives, and the balance being water. The coating formed by this invention has an ultra-low water vapor transmission rate and also possesses heat-sealing capabilities. It eliminates the need for additional adhesive, lamination, or coating processes, simplifying the processing. The resulting coating is transparent, with a surface dyne value >42, and does not affect the appearance of paper or subsequent printing processes.