Patent · US Active

Derivatives of tris(2-hydroxyphenyl)methanes, preparation thereof and use thereof for mineral oil production

US9428432B2 · kind B2 · utility

0Cited by

5References

24Claims

0Family size

Assignee

BASF Wintershall Holding GmbH · DE

Inventors

Sophie Maitro-Vogel · Mannheim, DE
Roman Benedikt Raether · Speyer, DE
Markus Hansch · Speyer, DE

Key dates

Filing date	Nov 21, 2012
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Apr 26, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Novel derivatives of tris(2-hydroxyphenyl)methanes which have, as functional groups, polyalkoxy groups unmodified or modified with terminal hydrophilic groups, preparation of such compounds and use thereof, especially for mineral oil production.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.