Compositions: coating or plastic – Materials or ingredients – Additive materials for inorganic cements which contain a...
Reexamination Certificate
2011-08-02
2011-08-02
Egwim, Kelechi C (Department: 1796)
Compositions: coating or plastic
Materials or ingredients
Additive materials for inorganic cements which contain a...
C106S162100, C106S217700, C106S819000, C525S050000
Reexamination Certificate
active
07988783
ABSTRACT:
The invention relates to an additive for hydraulically setting systems based on modified polycarboxylates and water-soluble ethers of high polymeric polysaccharides, optionally containing further standard additives, characterized by a content of a) a water-soluble ether of cellulose or a cellulose-like compound with a viscosity of at least approximately 1,000 mPas, particularly at least approximately 2,000 mPas, measured as a 2% aqueous solution with a Brookfield viscosimeter at 20° C. and 20 rpm and b) a polycarboxylate, whose main chain is linked by means of ester, ether, imide and/or amide groups with polyethylene oxide-containing side chains. The invention also relates to hydraulic mixtures having a content of the above additive and the use thereof. Using the additive according to the invention in hydraulically setting systems comparable and in part much better characteristics are obtained compared with casein-containing formulations, such as a rheological flow behaviour comparable to casein, but with improved water retention.
REFERENCES:
patent: 4265674 (1981-05-01), Debus et al.
patent: 4502887 (1985-03-01), Tsuda
patent: 5352290 (1994-10-01), Takeshita et al.
patent: 5372642 (1994-12-01), Bartz et al.
patent: 5494516 (1996-02-01), Drs et al.
patent: 5853430 (1998-12-01), Shindo et al.
patent: 5925699 (1999-07-01), Ellenberger et al.
patent: 5959029 (1999-09-01), Koelliker et al.
patent: 6054022 (2000-04-01), Helwig et al.
patent: 6242406 (2001-06-01), Katsuda et al.
patent: 6384111 (2002-05-01), Kistenmacher et al.
patent: 6465412 (2002-10-01), Mahieu et al.
patent: 7250488 (2007-07-01), Akiyama et al.
patent: 2002/0045684 (2002-04-01), Bacher et al.
patent: 2002/0121230 (2002-09-01), Colombet et al.
patent: 39 10730 (1990-04-01), None
patent: 203 04 239 (2003-05-01), None
patent: 0 008 094 (1980-02-01), None
patent: 0 520 413 (1992-12-01), None
patent: 0 573 847 (1993-12-01), None
patent: 0 723 975 (1996-07-01), None
patent: 1 004 557 (1999-06-01), None
patent: 1 180 525 (2002-02-01), None
patent: 1 180 535 (2002-02-01), None
patent: 0 946 617 (2002-03-01), None
patent: 1 197 480 (2002-04-01), None
patent: 2 714 912 (1995-07-01), None
patent: 8 217 508 (1996-08-01), None
patent: WO 86/00291 (1986-01-01), None
patent: WO 00/42144 (2000-07-01), None
patent: WO 0042144 (2000-07-01), None
Shim-Etsu Chemical Co., Ltd.; Melolose Water-Soluble Cellose Ether Catalouge (2003).
Buhler Erwin
Koelliker Robert
Waser Hanspeter
Akzo Nobel N.V.
Egwim Kelechi C
Kenyon & Kenyon LLP
LandOfFree
Additive for hydraulically setting systems, 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 Additive for hydraulically setting systems, the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additive for hydraulically setting systems, the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2761653