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公开(公告)号:US12251677B2
公开(公告)日:2025-03-18
申请号:US17295691
申请日:2019-12-03
Applicant: SPECIALTY OPERATIONS FRANCE
Inventor: Rodolphe Sapey-Triomphe , Lars Fischer , David Vanzin
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.
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公开(公告)号:US20250161898A1
公开(公告)日:2025-05-22
申请号:US19030470
申请日:2025-01-17
Applicant: SPECIALTY OPERATIONS FRANCE
Inventor: Rodolphe Sapey-Triomphe , Lars Fischer , David Vanzin
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.
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3.
公开(公告)号:US12180312B2
公开(公告)日:2024-12-31
申请号:US17775169
申请日:2019-11-06
Applicant: SPECIALTY OPERATIONS FRANCE
Inventor: Jing Jiang , Ding Wang , David Vanzin
IPC: C08F2/40 , C07C45/86 , C07C51/50 , C07C67/62 , C07D279/20
Abstract: The invention relates to a composition for the immediate termination of a free-radical polymerization, the use thereof for the stabilization of free-radically polymerizable monomers against free-radical polymerization and a method for the immediate termination of free-radical polymerizations.
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公开(公告)号:US20240092720A1
公开(公告)日:2024-03-21
申请号:US18264213
申请日:2021-02-04
Applicant: SPECIALTY OPERATIONS FRANCE
Inventor: Jing Jiang , David Vanzin , Rodolphe Sapey-Triomphe , Shujing Cheng , Lars Fischer
Abstract: An anti-fouling composition, and uses thereof in the industrial preparation of ethylenically unsaturated monomers comprising at least one heteroatom, such as acrylic monomers are disclosed.
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