FOAMED-WALL CONTAINER HAVING A NON-TRANSPARENT APPEARANCE
A container comprises a micro cellular foamed polymer, and a non- reactive gas contained within the micro cellular foam cells, wherein the container has a non-transparent appearance. The process for making the container comprises injection molding a polymer preform having a non-reactive gas entrappe...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A container comprises a micro cellular foamed polymer, and a non- reactive gas contained within the micro cellular foam cells, wherein the container has a non-transparent appearance. The process for making the container comprises injection molding a polymer preform having a non-reactive gas entrapped within the walls thereof, cooling the preform to a temperature below the polymer softening temperature, reheating the preform to a temperature above the polymer softening temperature, and blow molding the preform, to prepare a container comprising a micro cellular foamed polymer having a non-reactive gas contained within the micro cellular foam cells. |
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