公开(公告)号：US20200031749A1

公开(公告)日：2020-01-30

申请号：US16486427

申请日：2018-02-21

Applicant: RHODIA OPERATIONS

Inventor： Cédric HUMBLOT ,  David VANZIN ,  Lars FISCHER ,  Rodolphe SAPEY-TRIOMPHE

IPC: C07C37/70 ,  C07C39/08 ,  B01J2/20 ,  B01J2/02

Abstract: The invention relates to a novel solid form of diphenol compound. A process for the preparation of diphenol prills having a spherical shape is disclosed. Said process comprising providing a molten composition comprising from 50 to 100 wt. % of a diphenol compound or a mixture of at least two diphenol compounds, and less than 0.1 wt. % of water; forcing said molten composition through at least one droplet generator means to form droplets; and cooling said droplets to form solid diphenol prills. The diphenol prills obtainable by said process are also one subject-matter of the invention.

公开(公告)号：US20210387151A1

公开(公告)日：2021-12-16

申请号：US17295691

申请日：2019-12-03

Applicant: RHODIA OPERATIONS

Inventor： Rodolphe SAPEY-TRIOMPHE ,  Lars FISCHER ,  David VANZIN

IPC: B01J2/20

Abstract: The present invention relates to new lightly colored prills of hydroquinone. More particularly, the invention provides a new method for preparing said lightly colored prills of hydroquinone. The invention also relates to said prills of hydroquinone obtained by said new method.

公开(公告)号：US20210292262A1

公开(公告)日：2021-09-23

申请号：US17266238

申请日：2019-08-02

Applicant: RHODIA OPERATIONS

Inventor： Rodolphe SAPEY-TRIOMPHE ,  Cédric HUMBLOT

IPC: C07C43/23 ,  A61K9/20 ,  A61K8/02 ,  C07C41/40 ,  A23L27/20

Abstract: The present invention relates to a novel solid presentation form of a phenol derivative, characterized by a rounded portion and a flat portion. The compositions thus obtained have advantageous properties suitable for the storage, handling and flow of the compounds. The present invention also relates to a process for preparing these solids, and to the use thereof, in particular in the polymer and agri-food industries.