Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Reexamination Certificate
2005-10-18
2005-10-18
Mruk, Brian P. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Liquid composition
C510S434000, C510S475000, C510S477000, C510S535000, C568S616000, C568S618000, C560S183000, C560S186000, C560S187000, C524S599000, C528S271000, C528S272000, C528S306000, C528S392000
Reexamination Certificate
active
06956018
ABSTRACT:
A polymerizable polyoxyalkylene monoalkyl ether derivative prepared by using a polyoxyalklene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1/S0≦0.15, wherein S1represents the area under a portion of the chromatogram from the start of elution to the earliest elution time when the intensity of the refractive index has a value of L/3, L representing the shortest distance between the greatest maximum point of the intensity of the refractive index and the base line and S0represents the area under a portion of the chromatogram from the start of elution to an elution time when the intensity of the refractive index has the greatest maximum value; a process for producing the above ether comprising adjusting the content of water in a reactor, which is used in addition polymerization of alkylene oxides with addition to a monohydric alcohol, so as to satisfy an equation: Wi×(Cf−Ci)/V≦10, wherein the content of water in the reactor is obtained by placing a solvent having a content of water Ci (ppm) in an amount Wi (g) in the reactor having an inner volume V (ml), stirring the solvent to clean the reactor, removing the solvent from the reactor and obtaining a content of water Cf (ppm) in the removed solvent.
REFERENCES:
patent: 3293193 (1966-12-01), Krahler et al.
patent: 4721816 (1988-01-01), Edwards
patent: 5210324 (1993-05-01), Farrar et al.
patent: 6642422 (2003-11-01), Itoh et al.
patent: 6780928 (2004-08-01), Itoh et al.
patent: 0 066 179 (1982-05-01), None
patent: 0 331 308 (1989-02-01), None
patent: 0 826 715 (1996-08-01), None
patent: 0 985 697 (1999-03-01), None
patent: 58-185622 (1983-10-01), None
patent: 10-53647 (1998-02-01), None
patent: 10-168177 (1998-06-01), None
Derwent Publications Ltd., London, GB, AN 1998-20170; XP002175001 & JP 10 053738 A; Feb. 24, 1998.
Derwent Publications Ltd., London, GB; AN 1982-10561J: XP002175002 & JP 57 185308 A; Nov. 15, 1982.
Oshima et al., “Current Status of Polyethylene Glycol and its Related Compounds”; (1987) 22(9), pp. 397-403. (See specification, p. 3).
Hayashi Yoshihiro
Honda Susumu
Itoh Akinori
Matsui Tatsuya
Mruk Brian P.
Nof Corporation
Westerman Hattori Daniels & Adrian LLP
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