FIELD: polymer materials.
SUBSTANCE: invention relates to ionomer thermoplastic polyurethane, method for preparation thereof, use of indicated ionomer thermoplastic polyurethane to prepare aqueous dispersions thereof, as well as to a method for preparing aqueous dispersions of ionomer thermoplastic polyurethanes. Ionomer thermoplastic polyurethane is prepared via continuous reaction of (i) 4-50% if diisocyanate; (ii) 35-95% of bifunctional polyatomic alcohol selected from group comprising (a) polycaprolactone with mean molecular mass between 500 and 15000 and general formula I: (I), (b) polyesterdiol with mean molecular mass between 500 and 15000 and general formula II:
(II), (c) polyesterdiol selected from polypropylene glycol, polytetramethylene glycol, and polyethylene glycol, (d) polycarbonatediol with mean molecular mass between 500 and 15000 and general formula III:
(III), and (e) copolymers obtained from two bifunctional polyatomic alcohol from groups (a), (b), (c), or (d); (iii) 0.2-16% of chain-elongation glycol of general formula IV:
(IV); and (iv) 0.2-3% of chain-elongation anionic-type ionomer glycol of general formula V:
(V).
EFFECT: enabled preparation of ionomer polyurethane suitable for being stored in solid form for subsequent preparation of aqueous dispersions of thermoplastic polyurethanes appropriate as industrial adhesives and coating materials for flexible and rigid substrates.
34 cl, 2 tbl, 10 ex
Authors
Dates
2006-03-27—Published
2001-07-27—Filed