Accelerator admixture

Details Accelerator admixture Accelerator admixture

2007-04-03

2007-04-03

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

Additive materials for inorganic cements which contain a...

C106S727000, C106S808000, C106S819000, C427S427000, C427S427100, C428S703000

Reexamination Certificate

active

10516699

ABSTRACT:
An accelerator composition for use with sprayed cementitious compositions, which is an aqueous solution or dispersion of a blend of the essential Components 1–3Component 1—aluminium sulphateComponent 2—at least one of an alkanolamine and an alkylene diamine or triamineComponent 3—hydrofluoric acidoptionally with at least one of Components 4–7, with the proviso that at least one of Component 4 or Component 5 be present:Component 4—at least one of sodium hydroxide, potassium hydroxide, lithium hydroxide, magnesium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, magnesium carbonate, sodium sulphate, potassium sulphate, magnesium sulphate and lithium sulphate;Component 5—C1–C10aliphatic mono- and dicarboxylic acids and their metal salts;Component 6—aluminium hydroxide;Component 7—at least one of phosphoric acid and phosphorous acid.The accelerators have excellent long-term stability and work well with “difficult” cements, such as some Japanese OPCs.

REFERENCES:
patent: 5935318 (1999-08-01), Angelskaar et al.
patent: 6302954 (2001-10-01), Lunkenheimer et al.
patent: 6537367 (2003-03-01), Sommer
patent: 6540826 (2003-04-01), Sommer
patent: 2002/0035952 (2002-03-01), Sommer et al.
patent: 0 657 398 (1995-06-01), None
patent: 1 167 315 (2002-01-01), None
patent: 1 167 317 (2002-01-01), None
patent: 2000-185952 (2000-07-01), None
patent: 2001-130935 (2001-05-01), None
patent: 2002-047048 (2002-02-01), None
patent: 2003-246659 (2003-09-01), None
patent: WO 98 18740 (1998-05-01), None
patent: WO 01 42165 (2001-06-01), None
Patent Abstracts of Japan, vol. 1999, No. 03, Mar. 31, 1999 and JP 10 330139 A (Chichibu Onoda Cement, Corp., Onoda Co.). Dec. 15, 1998.
Patent Abstracts of Japan, Vo. 1999, No. 04, Apr. 30, 1999 and JP 11 021158 A (Chichibu Onoda Cement Corp., Onoda Co., Ohbayashi Corp. Jan. 26, 1999.

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