Patent · US Active

Coprocessed silica coated polymer composition

US10596261B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Inventors

Divya Tewari · West Chester, US
Yevgeniya A. Titova · Wilmington, US
Brad Beissner · Wilmington, US
Thomas Durig · Chadds Ford, US

Key dates

Filing date	Mar 12, 2014
Grant date	Mar 24, 2020
Priority date	—
Expiry date	Mar 12, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J139/06
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises vinyl lactam derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared by a continuous process and has a Brookfield cohesion of less than 0.12 kPa, a bulk density of at least 0.249 gram/milliliter and a flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.