Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-07-19
2005-07-19
Szekely, Peter (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S005000, C524S376000, C524S377000, C560S189000, C560S205000, C560S224000, C106S724000, C106S727000
Reexamination Certificate
active
06919388
ABSTRACT:
The admixtures for a cementitious composition of the invention, which have the above-mentioned constitutions, can suitably be used in cement pastes, mortar, concrete and like cement compositions and can stabilize the amount of air entrained with the lapse of time and thus facilitate the quality control of cement compositions and, further, can improve the workability of cement compositions owing to their excellent dispersing capacities. The cement compositions of the invention which comprise such admixture for a cementitious composition are excellent in water-reducing ability and workability and can give hardened products excellent in strength and durability and, further, can stably maintain the amount of air entrained without allowing increases in the amount of air even when the time of kneading is prolonged in the production.
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Australian Search Report of Nov. 11, 2004.
Hirata Tsuyoshi
Imai Daisuke
Kawakami Hirokatsu
Nishikawa Tomotaka
Tanaka Hiromichi
Nippon Shokubai Co. , Ltd.
Szekely Peter
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