Patent ID: 6441054
Filing Date: 2002-08-27
Classification: C04B,Y10S

Abstract:
An admixture composition comprising: a plasticizer for modifying a cementitious composition; a first surface active agent comprising a betaine, an alkyl sulfonate, an aryl sulfonate, an alkylaryl sulfonate, or a mixture thereof; and a second surface active agent comprising a nonionic oxyalkylene-containing polymer surfactant represented by at least one of the formulae â€œAâ€  through â€œDâ€ : wherein x and xâ€² independently represent an integer of from 1 to 140; and y represents an integer of from 15-70; â€ƒwherein v and vâ€² independently represent an integer of from 9 to 27; and w represents an integer of from 4 to 232; â€ƒwherein q, qâ€², qâ€³, and qâ€²â€³ independently represent an integer of from 4 to 31; and r, râ€², râ€³, and râ€²â€³ independently represent an integer of from 2 to 140; and â€ƒwherein m, mâ€², mâ€³, and mâ€²â€³ independently represent an integer of from 1 to 95; and n, nâ€², nâ€³, and nâ€²â€³ independently represent an integer of from 8 to 32.