Drying and gas or vapor contact with solids – Process – With contacting of material treated with solid or liquid agent
Reexamination Certificate
2007-01-09
2007-01-09
Hardee, John R. (Department: 1751)
Drying and gas or vapor contact with solids
Process
With contacting of material treated with solid or liquid agent
C510S375000
Reexamination Certificate
active
10344889
ABSTRACT:
The invention provides a method of treatment of a material, comprising contacting said material with a percarbamic acid and/or diacyl percarbamate. Preferably the percarbamic acid has formula (I), where R represents an optionally substituted alkyl, aryl, heteroaryl, cycloalkyl or non-aromatic heterocyclic group, a hydrogen atom, or a group having formula (1a), where each R2independently represents a hydrogen atom or an alkyl group; and m=0 to 30. The method provides effective bleaching agents and resterilizing agents and or bacteriocidal agents over a wide range of pH and temperatures, for a wide range of applications. Compositions comprise formula (II), whereby R is H or alkyl and L is a moiety displaced by —OOH, and hydrogen peroxide or per hydroxy anion or a precursor therefor
REFERENCES:
patent: 3965015 (1976-06-01), Bauman
patent: 4063923 (1977-12-01), Han
patent: 4259383 (1981-03-01), Eggensperger et al.
patent: 4272413 (1981-06-01), Bauman
patent: 6821302 (2004-11-01), Au et al.
patent: 2004/0055092 (2004-03-01), Lewis et al.
patent: 2083319 (1992-11-01), None
patent: 0 333 350 (1989-09-01), None
patent: 0 543 175 (1993-05-01), None
patent: 52124758 (1977-10-01), None
patent: 62001793 (1987-01-01), None
patent: 9053096 (1997-02-01), None
patent: 09-087685 (1997-03-01), None
patent: 9059690 (1997-03-01), None
patent: 9087679 (1997-03-01), None
patent: 9087685 (1997-03-01), None
patent: WO 2002-16538 (2002-02-01), None
Houben-Weyl, methoden der organischen Chemie (Methods of Organic Chemistry), vol. E4, pp. 362-364.
Houben-Weyl, methoden der organischen Chemie (Methods of Organic Chemistry), vol. E4, pp. 181-189.
Lapshin et al., “Infrared Spectra of Some Percarbonates and Percarbamates,” USSR Zhumal Organicheskoi Khimii, 4(b), pp. 952-54 (1968).
Beilstein Database File XFIRE, XP 002184692.
Hawkes Jamie Anthony
Knapp Jerry S.
Lewis David Malcolm
Yao Jiming
Goodwin & Procter LLP
Hardee John R.
The University of Leeds
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