Patent · US Expired

Solid active extrusion compound preparations containing low-substituted hydroxypropylcellulose

US5939099A · kind A · utility

85Cited by

3References

2Claims

0Family size

Assignee

BASF SE

Inventors

Sven Grabowski · Ludwigshafen, DE
Jorg Breitenbach · Mannheim, DE
Joerg Rosenberg · Ellerstadt, DE
Axel Sanner · Bischofswerda, DE

Key dates

Filing date	Jul 30, 1997
Grant date	Aug 17, 1999
Priority date	—
Expiry date	Jul 30, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/2095
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Solid preparations are obtainable by melt extrusion of PA1 A) at least one active compound, PA1 B) a mixture of PA2 B1) from 10 to 90% by weight of a water-soluble, thermoplastic polymer, and PA2 B2) from 10 to 90% by weight of a low-substituted hydroxypropylcellulose, and PA1 C) from 0 to 50% by weight, based on the total amount of the preparation, of customary pharmaceutical auxiliaries.

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