Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – To form particulate product
Patent
1999-03-09
2000-11-14
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
To form particulate product
26417711, 26433112, B29B 906
Patent
active
061465704
ABSTRACT:
A hydrocolloid product having improved dispersibility and wettability characteristics in aqueous medium is provided by dry blending in a heated state the hydrocolloid powder particles with molten, normally solid nonionic surfactant. The heated mixing state is at a temperature greater than the melting temperature of the solid nonionic surfactant. After suitable mixing, the resulting mixture of surfactant-coated powder particles is extruded to produce granules of the hydrocolloid-nonionic surfactant mixture, which granules are cooled to below the melting temperature of the nonionic surfactant to provide a readily water dispersible, readily wettable hydrocolloid product.
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Jones Kenneth M.
Rhodia Inc.
Shedden John A.
Silbaugh Jan H.
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