| 摘要 |
Aqueous, filler containing compositions comprises: (1) a dispersion of polymer with a glass transition temperature (Tg) -10 degrees C; and (2) a solution of≤50 wt.% abietic acid based resin with a Tg = 0-90 degrees C dissolved in a liquid resin with a Tg -10 degrees C. Aqueous compositions comprises: (A) 10-35 wt.% dispersed polymer with Tg -10 degrees C; (B) 5-22 wt.% liquid (at 23 degrees C/1 bar) resin with a Tg -10 degrees C, in which sufficient abietic acid (AA) can be dissolved at 23 degrees C and 1 bar to give a solution of≤50 wt.% AA; (C) 5-22 wt.% resin with Tg = 0-90 degrees C, based on optionally modified abietic acid; and (D) 21-80 wt.% filler (wt.% based on all components except water). An Independent claims is also included for production of the composition by making a solution of resins (B) and (C), and then adding this solution together with the other components to an aqueous dispersion of polymer (A).
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