2results about How to "Change molecular structure" patented technology

The application discloses a kind of water-based polyurethane adhesive materials and preparation method thereof, it is related to adhesive material preparation technical field.The component used in the application takes isocyanate, polycaprolactone dihydric alcohol PCL2000 as main raw material, 2,2-bis (hydroxymethyl) propionic acid and the like as hydrophilic chain extender, 1,4-butanediol as small molecule chain extender, triethylamine is neutralizing agent, and hydrophilic polyurethane prepolymer is synthesized, and low-temperature deionized water is added under high-speed shearing to synthesize water-based polyurethane adhesive.The water-based polyurethane adhesive material prepared in the application has high solid content, low water absorption, excellent tensile strength, bonding performance and anti-sagging property.

This utility model relates to the technical field of cosmetic lotion pumps, and discloses a magnetized small molecule lotion pump for cosmetics. It includes: a lotion pump threadedly connected to the top of a lotion bottle; the lotion pump includes a pump cap housing and a pump nozzle; the pump cap housing contains a pressing component and a magnetizing component, the pressing component and the magnetizing component are internally connected, and the pressing component changes the internal pressure by pressing, forming a negative pressure to generate adsorption force; this utility model utilizes the unique closed-loop arrangement of the first permanent magnet component (four sets of permanent magnets connected in a positive-negative-positive-negative configuration) and a spiral channel design, built into the pump cap housing, to allow the lotion to fully receive the magnetic field during flow, effectively changing the molecular structure of the active ingredients in the cosmetic and enhancing their activity. After magnetization, the lotion molecules can more easily penetrate the stratum corneum of the skin and reach deeper into the skin's basal layer, significantly improving the penetration rate of the active ingredients.