Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work – Work is organic material
Reexamination Certificate
2007-02-07
2009-08-25
O'Sullivan, Peter G (Department: 1621)
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
Work is organic material
C427S237000, C427S248100, C427S400000, C427S343000, C427S322000
Reexamination Certificate
active
07578953
ABSTRACT:
An article is sulfonated by forming a sulfonating gas composition containing a gaseous sulfur-containing compound provided from a gas source. The gas source may utilize a chemical feed stock that includes a precursor sulfur-containing compound. The article is then contacted with the sulfur-containing gas until a surface treatment is effected. Next, the article is then optionally contacted with a gaseous neutralization composition, and then a liquid neutralization composition. In another sulfonation method, a first test sample is sulfonated and then analyzed by inductively coupled plasma analysis and X-ray fluorescence spectroscopy. A calibration relationship between the two spectroscopic techniques is determined with the inductively coupled plasma atomic spectroscopic value taken as the accurate value. In subsequent sulfonation runs, test samples are included and monitored by X-ray fluorescence.
REFERENCES:
patent: 5030399 (1991-07-01), Walles et al.
patent: 5156783 (1992-10-01), Seizert et al.
patent: 5512665 (1996-04-01), Uchiyama et al.
patent: 6758910 (2004-07-01), Schmoyer
Back Dwayne
Sebe Elena
Winter Charles H.
O'Sullivan Peter G
Panagos Bill C.
Rader & Fishman & Grauer, PLLC
Sulfo Technologies, LLC
LandOfFree
Method of sulfonating an article and related apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of sulfonating an article and related apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of sulfonating an article and related apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4090849