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US 12,497,555 B2Granted
Demulsifier
AssigneePetroliam Nasional Berhad (Petronas)
InventorsNor Hadhirah Halim, Farah Fazlina M Yasin, Intan Khalida Salleh, Jamal Mohamad M Ibrahim
Life of this patent
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Abstract
The invention provides a demulsifier compound, formulations comprising the demulsifier compound, and methods for preparing the demulsifier compound.
Claims16
A compound of formula (I):
- wherein,
- each R independently represents a linear or branched C1-6 alkyl chain;
- each A independently represents a polyethylene glycol or polypropylene glycol chain having a number average molecular weight of from about 300 to about 800;
- each n independently represents an integer of from 1 to 6;
- L represents a poly(dialkylsiloxane) of formula —[O—SiR′2]m—O—, wherein each R′ independently represents an alkyl group and m is an integer whereby the poly(dialkylsiloxane) has a number average molecular weight of from about 2000 to about 5000 Daltons.
2 more elements
Dependencies are inferred from the claim text.