Process for preparing cleansing bars having well-defined...

Details Process for preparing cleansing bars having well-defined... Process for preparing cleansing bars having well-defined...

2005-02-08

2005-02-08

Colaianni, Michael P. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S075000, C264S171100, C425S131100, C425S197000, C425S198000, C425S199000, C425S208000, C425S465000, C510S146000

Reexamination Certificate

active

06852260

ABSTRACT:
A process for preparing a cleansing bar having well-defined platelet striations therein which comprises extruding a cleansing bar composition having platelets therein to form a cleansing bar using an extruder having a perforated barrier across the cross section of the extruder, wherein the perforated barrier is located at a sufficient distance downstream from the spider to allow well-defined platelet striations to be observed in the finished cleansing bar with the human eye. The perforated barrier is located at a distance from the spider equal to at least about 60%, preferably at least about 70%, of the distance from the spider to the extruder cone outlet of the extruder. Generally, a standard extruder cone length from spider to cone outlet is about 483 mm to about 560 mm.

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Derwent Abstract of DE 2006666 A, 1971, Derwent Information Limited, Derwent Week# 197134.

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