Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-07-01
2008-07-01
Lipman, Bernard (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S004000, C524S005000, C526S304000, C106S724000, C106S727000, C106S728000, C106S823000
Reexamination Certificate
active
10556071
ABSTRACT:
A superior cement dispersant and a concrete composition containing the cement dispersant, the cement dispersant being a water-soluble amphoteric copolymer which contains an alkylene oxide adduct of a polyamide polyamine having an unsaturated group and at least two types of polyalkylene glycol ester. When the cement dispersant is compounded with a concrete composition, the dispersion performance thereof increases with time, and the concrete viscosity is effectively decreased. The cement dispersant composition contains a water-soluble amphoteric copolymer or the neutralized salt thereof as an essential component, which is obtained by copolymerizing an alkylene oxide adduct of a polyamide polyamine having an unsaturated group, (meta)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof, an ester of an alkylene glycol and methacrylic acid, and an ester of an alkylene glycol and acrylic acid. In addition, the concrete composition containing the above cement dispersant is also disclosed.
REFERENCES:
patent: 4284433 (1981-08-01), Aignesberger et al.
patent: 6294015 (2001-09-01), Yamashita et al.
patent: 6680348 (2004-01-01), Amaya et al.
patent: A 54-139929 (1979-10-01), None
patent: A 3-75252 (1991-03-01), None
patent: A 6-157100 (1994-06-01), None
patent: A 8-169741 (1996-07-01), None
patent: A 9-40446 (1997-02-01), None
patent: B2 3029827 (2000-02-01), None
patent: B2 3235002 (2001-09-01), None
patent: B2 3336456 (2002-08-01), None
patent: A 2004-2174 (2004-01-01), None
patent: WO 03/091180 (2003-11-01), None
Bandoh Hirofumi
Danzinger Wernher M.
Ikeda Akira
Imamura Jun
Kobayashi Atsushi
Lipman Bernard
Oliff & Berridg,e PLC
Sika Ltd.
Toho Chemical Industry Co., Ltd.
LandOfFree
Cement dispersant and concrete composition containing the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cement dispersant and concrete composition containing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cement dispersant and concrete composition containing the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3911398