| http://www.w3.org/ns/prov#value | - In addition to the obvious loss of transparency of the plastic container due to the inclusion of the opaque pigment particles, there has been encountered a problem which is particularly acute with those resins, such as polyethylene and polypropylene where it is necessary to mold the resinous compositions with temperatures on the order of 350??? F. Under these molding conditions, the aluminum hydra
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