Coprocessed silica coated polymer composition

• Main Authors: Beissner, Brad, Tewari, Divya, Durig, Thomas, Titova, Yevgeniya A
• Format: Patent
• Language: English
• Published: 24.03.2020
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BABY COMFORTERS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICALPURPOSES; CORRECTING FLUIDS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; DEVICES FOR RECEIVING SPITTLE; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGINGPHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL ORADMINISTERING FORMS; DYES; FILLING PASTES; HUMAN NECESSITIES; HYGIENE; INKS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

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.