Master batch composition for a weight-reduced plastic product and method of manufacturing the same
AssigneeNano and Advanced Materials Institute Limited
InventorsYueying CHEN, Qi JIANG, Dongli SUN, Xianqiao LIU
Life of this patent
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Abstract
A master batch composition for a weight-reduced plastic product includes a carrier resin, a core-shell foaming agent, and at least one lubricant. The core-shell foaming agent includes at least one outer polymeric shell and at least one inner foaming agent core. The outer polymeric shell encapsulates the inner foaming agent core. The inner foaming agent core includes alkane. The master batch composition is configured to be integrated into the weight-reduced plastic product by extrusion blow molding with a base plastic resin to create a foamed plastic having a foaming pore size from 10 to 80 μm.
Claims16
A master batch composition for a weight-reduced plastic product, comprising:
- a carrier resin;
- a core-shell foaming agent, wherein the core-shell foaming agent includes at least one outer polymeric shell and at least one inner foaming agent core, the polymeric outer polymeric shell encapsulates the inner foaming agent core, and the inner foaming agent core includes alkane;
- and
- at least one lubricant,
- wherein the master batch composition is configured to be integrated into the weight-reduced plastic product by mixing with a base plastic resin to create a foamed plastic by extrusion blow molding having a foaming pore size from 10 to 80 μm.
A method of preparing a master batch composition for weight-reduced plastic, comprises:
- mixing a master batch composition to form a melt mixture in an internal mixer at a first temperature, wherein the master batch composition comprises a carrier resin, a core-shell foaming agent, and at least one lubricant, and the first temperature is a melting temperature of the carrier resin, wherein the core-shell foaming agent includes at least one outer polymeric shell and at least one inner foaming agent core, the polymeric outer polymeric shell encapsulates the inner foaming agent core, and the inner foaming agent core includes alkane;
- and
- single-screw extruding and pelletizing the melt mixture at a second temperature ranging between 50 and 160° C. to form pellets.
Dependencies are inferred from the claim text.