Dialkyl tin oxide composition and process for producing 2-dimethylaminoethyl (meth)acrylate
US12030832B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Mar 11, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Nov 2, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a new dialkyl tin oxide catalyst composition and its use for the synthesis of amino alkyl (meth)acrylates by transesterification from an alkyl (meth)acrylates and an amino alcohol, and especially 2-dimethylaminoethyl (meth)acrylate.The invention also relates to polymers made with quaternized amino alkyl (meth)acrylates and use of said polymers in water treatment, sludge dewatering, papermaking process, agriculture, cosmetic and detergency composition, textile process, oil and gas recovery process such as enhanced oil recovery, fracturing, mining operation such as tailings treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.