Glass Beads for Package Reinforcement
3 patents in this list
Updated:
Glass microspheres used in packaging materials face significant mechanical stresses during manufacturing and use. Traditional hollow glass beads, while providing excellent weight reduction and insulation properties, typically show brittle failure under impact loads of 2000-3000 psi, limiting their application in high-stress environments. Current data shows that unmodified beads experience up to 40% breakage rates during composite processing.
The core challenge lies in enhancing the impact resistance and interfacial bonding of glass microspheres without compromising their beneficial properties of low density and thermal insulation.
This page brings together solutions from recent research—including rubber-coated hollow beads for improved impact resistance, double-walled porous structures for better matrix adhesion, and specialized masterbatch formulations for enhanced dispersion. These and other approaches focus on creating more robust packaging materials while maintaining the lightweight advantages of glass microsphere technology.
1. Insulated Lunch Box with Composite Extruded Structure Incorporating Rubber-Coated Hollow Glass Beads
ZHENGZHOU HOLLOWLITE CENOSPHERE NEW MATERIAL CO LTD, 2024
Insulated lunch box with improved thermal insulation properties while maintaining mechanical strength compared to traditional lunch boxes. The lunch box is made by extruding a composite of plastic, thermal insulation filler (modified hollow glass beads), and auxiliary agent. The modified hollow glass beads have a rubber coating to improve impact resistance during use. This coating promotes vulcanization and cross-linking during plastic molding to enhance toughness. The coated beads with improved impact strength are mixed into the composite for the lunch box production.
2. Double-Walled Hollow Porous Glass Microbead with Conductive Layer
XINGHUA HONGYANG GLASS PRODUCTS CO LTD, Xinghua City Hongyang Glass Products Co., Ltd., 2020
Hollow porous glass microbead with improved properties for use as a filler in composite materials. The microbead has a double-walled structure with an inner hollow bead surrounded by an outer porous bead. The porous outer bead allows better dispersion and adhesion of the microbeads in composite materials compared to solid beads. The inner hollow bead reduces density and weight compared to solid beads. An optional conductive layer on the porous bead further improves composite performance by preventing electrical charging of the microbeads.
3. Transparent Film Masterbatch Comprising Modified Hollow Glass Beads, Carrier Resin, and Dispersant
Chengdu New Keli Chemical Technology Co., Ltd., Chengdu New-Keli Chemical Engineering Sci Technic Co., Ltd., 2016
Functional transparent film filled masterbatch for plastics with improved properties like UV blocking, antimicrobial, and freshness. The masterbatch contains a unique combination of modified hollow glass beads, carrier resin, and dispersant. The modified hollow glass beads improve density and dispersibility. By blending the hollow glass beads with resin and dispersant, followed by extrusion and granulation, it creates a functional transparent masterbatch that can be added to plastics to enhance properties like UV blocking, antimicrobial, and freshness.
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