Invention Grant
US3814778A Method for producing a composite foamed article 失效
生产复合泡沫制品的方法

Method for producing a composite foamed article
Abstract:
FIG-01 A METHOD FOR PRODUCING FOAMED COMPOSITE ARTICLE WHICH COMPRISES PLACING POWDERED PLASTICS AND GRANULAR PLASTICS CONTAINING FOAMING AGENT IN A MILD, ROTATING OR VIBRATING THE MOLD TO SEPARATE SAID TWO KINDS OF PLASTICS FROM EACH OTHER, AND HEATING AND FOAMING THE SAME WHILE ROTATION, OR VIBRATION OF THE MOLD IS CONTINUED.
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