Invention Grant
- Patent Title: Aminoalkyl (meth)acrylate stabilisation
-
Application No.: US17283272Application Date: 2019-09-18
-
Publication No.: US11485702B2Publication Date: 2022-11-01
- Inventor: Clement Bellini , Yves Cabon , Patrice Defer
- Applicant: Arkema France
- Applicant Address: FR Colombes
- Assignee: Arkema France
- Current Assignee: Arkema France
- Current Assignee Address: FR Colombes
- Agent Lynn B. Morreale
- Priority: FR1859127 20181002
- International Application: PCT/FR2019/052173 WO 20190918
- International Announcement: WO2020/070403 WO 20200409
- Main IPC: C07C213/10
- IPC: C07C213/10 ; C07C213/06

Abstract:
The present invention relates to the use of a stabilizing composition comprising at least one N-oxyl compound and at least one polymerization inhibitor other than an N-oxyl compound, for inhibiting transesterification catalyst degradation in a process for the synthesis of aminoalkyl (meth)acrylates. Preferably, the transesterification catalyst is a titanium organometallic compound and the stabilising composition comprises at least one N-oxyl derivative and at least one polymerization inhibitor chosen from phenolic compounds and phenothiazine compounds in a weight ratio of between 1 and 10, preferably between 4 and 10, limits inclusive.
Public/Granted literature
- US20210380523A1 AMINOALKYL (METH)ACRYLATE STABILISATION Public/Granted day:2021-12-09
Information query