Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By gas forming or expanding
Reexamination Certificate
2007-12-18
2007-12-18
Hardee, John R. (Department: 1751)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By gas forming or expanding
C524S462000, C252S067000, C521S131000
Reexamination Certificate
active
11542579
ABSTRACT:
This invention relates to compositions of cyclopentane, and a compound selected from the group consisting of hydrofluorocarbons, hydrofluoroethers, or fluorinated sulfur compounds. Specifically these compounds may be selected from the group consisting of tetrafluoroethane, hexafluoropropane, pentafluoropropane, tetrafluoropropane, trifluoropropane, difluoropropane, octafluorobutane, hexafluorobutane, pentafluorobutane, nonafluorobutane, difluorobutane, trifluoro-2-methoxyethane and bis(pentafluoroethyl)sulfide.The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.
REFERENCES:
patent: 5096933 (1992-03-01), Volkert
patent: 5166182 (1992-11-01), Blanpied
patent: 5562857 (1996-10-01), Werner et al.
patent: 5565497 (1996-10-01), Godbey et al.
patent: 5605940 (1997-02-01), Skowronski et al.
patent: 5672294 (1997-09-01), Lund et al.
patent: 5677358 (1997-10-01), Lund et al.
patent: 6514928 (2003-02-01), Bement et al.
patent: 0 431 458 (1991-06-01), None
patent: 723989 (1996-07-01), None
patent: 2-272086 (1990-06-01), None
patent: 4-110385 (1992-04-01), None
patent: 07113098 (1995-05-01), None
patent: WO 93/11201 (1993-06-01), None
patent: WO 94/17153 (1994-08-01), None
patent: WO 94/18282 (1994-08-01), None
patent: WO 94/25514 (1994-11-01), None
patent: WO 95/06693 (1995-03-01), None
patent: WO 96/10062 (1996-04-01), None
Fukushima et al., “Working Fluid Mixtures for Refrigerators and Heat Pumps”,Chemical Abstracts—Abstract 137383, 111, No. 16, Oct. 16, 1989.
Fukushima et al., “Working Fluids for Refrigerators and Heat Pumps”,Chemical Abstracts—Abstract No. 137386, 111, No. 16, Oct. 16, 1989.
Database WPI, AN 89-202053 and JP 01 139 678 (Asahi Glass Co. Ltd),Derwent Publications Ltd., London, GB, Section Ch, Week 8928, Jun. 1, 1989.
Database WPI, AN 89-202050 and JP 01 139 675 (Asahi Glass),Derwent Publications Ltd., London, GB, Week 8928, Jun. 1, 1989.
International Search Report, date of mailing: Mar. 5, 1998.
Capria Mary Ann
E. I. duPont deNemours and Company
Hardee John R.
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