Back to results
US 2020/0165376 A1Published application
Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
AssigneeEvonik Canada Inc.
InventorsSanjoy Mullick, Weilun Chang, Alexandra Piotrowicz, Jeannette Ho, Richard Witmeyer
Life of this patent
Estimating the term…
Abstract
The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
Claims26
A surface modifier of formula (I):
- wherein
- (i) A is a soft segment formed from diol hydroxyl-terminated polydimethylsiloxanes block copolymer (C22);
- (ii) B is a hard segment comprising a urethane trimer formed from hexamethylene diisocynate (HDI) biuret trimer;
- and
- (iii) each G is a surface active group comprising polyfluoroalkyl;
- wherein n is an integer between 0 to 10.
3 more elements
-9. (canceled)
-60. (canceled)
Dependencies are inferred from the claim text.