Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Patent
1998-04-24
1999-09-14
Anthony, Joseph D.
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
With lubricants, or warning, stabilizing or anti-corrosion...
252189, 73 40, 73 407, 62125, 516105, 516106, C09K 500, G01M 304, G01M 320, B01J 1300
Patent
active
059519096
ABSTRACT:
There is provided a method for the detection of leaks of an electrophilic gas from a system, such as chlorodifluoromethane or carbon dioxide, which comprises applying to an exterior surface of the system a gel consisting essentially of a Lewis base capable of removing a proton from the gas or reacting therewith in a similar electrophilic manner; a dye capable of visibly indicating a color change on protonation or deprotonation; a solvent for the dye, the base and the gas; and a rheology modifier capable of producing a non-newtonian gel of all of these components which is sufficiently translucent to permit visual detection of change of color of the dye and of sufficient pseudoplasticity/thixotropy to provide adhesion to vertical and horizontal surfaces.
REFERENCES:
patent: 3370013 (1968-02-01), Labac
patent: 3770640 (1973-11-01), Bartett
patent: 4128508 (1978-12-01), Munder
patent: 4249412 (1981-02-01), Townsend, III
patent: 4288402 (1981-09-01), Ellis
patent: 4377554 (1983-03-01), Johnson
patent: 4397944 (1983-08-01), Komurn et al.
patent: 4756854 (1988-07-01), Wegrzyn
patent: 4784959 (1988-11-01), Wegrzyn
patent: 4871535 (1989-10-01), Helloff et al.
patent: 4976931 (1990-12-01), Stoemer, III et al.
patent: 5028792 (1991-07-01), Mullis
patent: 5149453 (1992-09-01), Parekh
patent: 5373728 (1994-12-01), Guetzler
patent: 5377496 (1995-01-01), Otto et al.
patent: 5421192 (1995-06-01), Henry
patent: 5552074 (1996-09-01), Patron et al.
patent: 5560855 (1996-10-01), Hinton et al.
patent: 5567753 (1996-10-01), Shuman et al.
Kaiser Stewart R.
Verdicchio Robert J.
Walsh Shawn
Anthony Joseph D.
Behr Esq. Omri M.
R-Tec Technologies, Inc.
LandOfFree
Composition for the detection of electrophilic gases and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition for the detection of electrophilic gases and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for the detection of electrophilic gases and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1507579