Process for making shearform matrix

Patent 5380473 Issued on January 10, 1995. Estimated Expiration Date:

October 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 965804 filed on 10/23/1992

US Classes:

264/11, By impinging plural liquid masses264/12, By impinging or atomizing with gaseous jet or blast264/13, By extrusion spraying or gravity fall through orifice425/6, MEANS MAKING PARTICULATE MATERIAL DIRECTLY FROM LIQUID OR MOLTEN MATERIAL425/7By means applying fluid jet or blast to unconfined liquid material

Examiners

Primary: Theisen, Mary Lynn

Attorney, Agent or Firm

Hoffmann & Baron

Foreign Patent References

WO91/18613 EP. 12/13/1991
88/2770 ZA. 04/13/1988
88/2771 ZA. 04/13/1988
89/9318 ZA. 12/13/1989
90/2139 ZA. 03/13/1990
90/8406 ZA. 08/13/1991

International Class

B29B 009/10

Abstract

The present invention is a unique process and apparatus for making a new matrix material called a shearform matrix which results in transformation of the morphology of a feedstock. The process is characterized by increasing the temperature of a nonsolubilized feedstock carrier to a point where it will undergo internal flow, followed by ejecting a stream of the feedstock and then subjecting it to disruptive fluid shear force which separates it into separate parts or masses which have a transformed morphology. The shearform matrix may include other ingredients such as oleaginous material and actives.