公开(公告)号：US11447713B2

公开(公告)日：2022-09-20

申请号：US17042208

申请日：2019-03-19

Applicant: BASF SE

Inventor： Anna Maria Mueller-Cristadoro ,  Edward Bohres ,  Stefan Frenzel ,  Xiao Fu ,  Felix Alexander Westerhaus ,  Tina Noack ,  Radoslaw Kierat

IPC: C10M145/22 ,  C08G83/00 ,  C10M169/04 ,  C08G63/664 ,  C10N20/00 ,  C10N30/02

Abstract: The invention relates to a method for the preparation of a hyperbranched polyester mixture obtainable by reacting a hydroxyl group containing carboxylic acid (B) with at least one carboxylic acid group and at least two hydroxyl groups with a diol (C) having a molecular weight of more than 100 g/mol, optionally in the presence of at least one further reactant, wherein the at least one further reactant is a polyol (A) having at least three hydroxyl groups under a reaction condition allowing ester and ether formation; and reacting the mixture resulting from step (a) with a hydrophobic carboxylic acid (D) resulting in the hyperbranched polyester mixture. The invention further relates to said hyperbranched polyester mixture and the use as wax inhibitor, as pour point depressant, as lubricant or in lubricating oils.

公开(公告)号：US11274180B2

公开(公告)日：2022-03-15

申请号：US16491674

申请日：2018-03-05

Applicant: BASF SE

Inventor： Anna Maria Mueller-Cristadoro ,  Stefan Frenzel ,  Matthias Fies ,  Edward Bohres ,  Szilard Csihony ,  Xiao Fu

IPC: C08G73/02 ,  C09K8/524 ,  C10G71/00 ,  C10G75/00 ,  C10L1/222 ,  C10L1/2387 ,  C10L10/16 ,  C10M149/14 ,  C10N30/08

Abstract: Use of hydrophobically modified polyalkanolamines obtainable by condensing at least one trialkanolamine and optionally further condensable monomers and reacting at least one of the terminal OH groups with suitable reactants capable of reacting with OH groups and comprising long chain hydrocarbon groups as wax inhibitor, pour point depressant and additive for lubricants.