Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1994-04-04
1995-07-11
Szekely, Peter A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
106823, 524 5, 524 6, 524 8, 526271, 5263183, C08K 300, C08F22206, C08F22064
Patent
active
054322120
ABSTRACT:
A cement admixture which when added to a cement composition, such as cement mortar or concrete inhibits slump-loss of the cement composition and improve its workability and applicability. The admixture is composed of copolymers from an alkenyl ether, a polyalkenyl ether and maleic anhydride.
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patent: 4946904 (1990-08-01), Akimoto et al.
patent: 4946918 (1990-08-01), Akigama et al.
patent: 5142036 (1992-08-01), Akimoto et al.
patent: 5162402 (1992-11-01), Ogawa et al.
patent: 5223036 (1993-01-01), Koyata et al.
Hara Tadashi
Honda Susumu
Koyata Hideo
Szekely Peter A.
Troffkin Howard J.
W. R. Grace & Co.,-Conn.
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