Process for making shearform matrix
US5380473A · kind A · utility
131Cited by
52References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1992 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.