THERMALLY STABLE BIURET AND ISOCYANURATE BASED SURFACE MODIFYING MACROMOLECULES AND USES THEREOF

摘要

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.

主权项

1. A surface modifier of formula (I): wherein (i) A is a soft segment selected from poly(diethylene glycol)adipate (PEGA), hydrogenated polybutadiene (HLBH), polytetramethylene oxide (PTMO), poly(ethyleneglycol)-block-poly(propyleneglycol))-block-poly(ethylene glycol) (PLN), Poly(2,2 dimethyl-1-3-propylcarbonate) (PCN), poly(hexamethylene carbonate) (PHCN), diethylene glycol-orthophthalic anhydride polyester (PDP), hydrogenated polyisoprene (HHTPI), 1,12-dodecane (DDD), or polydimethylsiloxane block copolymer (C22); (ii) B is a hard segment comprising a urethane trimer or biuret trimer formed from isophorone diisocyanate (IPDI) trimer or hexamethylene diisocyanate (HDI) trimer, and B′, when present, is a hard segment comprising a urethane; and (iii) each G is a surface active group comprising polyfluoroalkyl; (iv) n is an integer between 0 to 10; wherein said surface modified has a thermal degradation temperature of at least 270° C. and a theoretical molecular weight of less than 10,000 Daltons.