Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1995-06-01
1999-01-19
Sergent, Rabon
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
528480, 585833, 585868, C08F 628
Patent
active
058614737
ABSTRACT:
A method for cleaning elastomeric articles comprising contacting the elastomeric article with at least one supercritical fluid under conditions and for a time sufficient to remove the phtalates and/or polynuclear aromatic hydrocarbons (PAHs) contained therein. Elastomeric articles having a reduced phtalate and/or PAH content prepared by the above method are also claimed. Such elastomeric articles having reduced phtalate contents can be utilized as gaskets, valves, seats, flaps or plugs in metered dose delivery devices such as aerosols for demanding medicinal and pharmaceutical uses.
REFERENCES:
patent: 3899398 (1975-08-01), Cole et al.
patent: 4749522 (1988-06-01), Kamarei
patent: 4824570 (1989-04-01), Bethuel et al.
patent: 4842743 (1989-06-01), Yoshida et al.
patent: 4871828 (1989-10-01), Blind et al.
patent: 5167883 (1992-12-01), Takemasa et al.
patent: 5233021 (1993-08-01), Sikorski
patent: 5481058 (1996-01-01), Blackwell et al.
patent: 5530049 (1996-06-01), Dee et al.
patent: 5550211 (1996-08-01), DeCrosta et al.
patent: 5756657 (1998-05-01), Sawan et al.
Paper presented by M. A. DeCrosta, A.F. Rynaski, B.E. Richter and J. L. Ezzell at the 1991 FACCS Conference on Oct. 7, 1991, Anaheim California, entitled The Use of Supercritical Fluid Extraction (SFE) and Chromatography (SFC) in the Analysis of Transdermal Matrix Patches, 20 pages.
Paper presented by A.F. Rynaski, B.E. Richter, J. L. Ezzell and M.A. DeCrosta at the Symposium on Pharmaceutical and Biomedical Analysis, Boston, Massachusetts, Apr. 29, 1991, entitled The Use of SFC and SFE in the Preparation and Analysis of Pharmaceutical Transdermal Matrix Patches, 14 pages.
Paper by A. Figazette, M. McLoughlin, R. Renfrow and T. Rossi., Analysis for Extractables From Nitrile Rubber Components in Metered Dose Inhalers, Pharmaceutical Analysis Department, SmithKline Beecham Pharmaceuticals, King of Prussia, Pennsylvania, was presented at the Symposium, "Regulatory Issues in Aerosol Drug Development", Jun. 12-14, 1991 in Arlington Virginia by the University of Kentucky College of Pharmacy, 19 pages.
In Supercritical Fluid Extraction and Chromatography, edited by Bonnie A. Charpentier and Michael R. Sevenants, ACS Symposium Series 366 (1988), by B. Wright et al., in Chapter 3: "Analytical Supercritical Fluid Extraction Methodologies", pp. 44-62; and by R. T. Marentis in Chapter 7 "Steps to Developing a Commercial Supercritical Carbon Dioxide Processing Plant", pp. 127-143.
U.S. Environmental Protection Agency Method 8310 -- Polynuclear Aromatic Hydrocarbons, pp. 8310-1 to 8310-13.
"Processing of Polymers with Supercritical Fluids" by Val Krukonis, Polymer News, 1985, vol. 11, pp. 7-16.
Anal. Chemistry, 1991, 63, pp. 2371-2377.
Biotechnology Progress, vol. 2, No. 1, Mar. 1986, pp. 29-39.
M. Taguchi, T. Hobo and T. Maeda, Evaluation and Application of a Supercritical Fluid Extraction System using Capillary Supercritical Fluid Chromatography, Journal of High Resolution Chromatography, vol. 14, Feb. 1991, pp. 140-143.
S. Sethi et al., Impact of Extractable Testing on MDI Development Programs, Journal of Biopharmaceutical Sciences, (1992), 3(1/2), pp. 63-68.
R. H. Dalby and P. R. Byron, Metered-Dose Inhalers Containing Flammable Propellants: Perspectives and Some Safety Evaluation Procedures, Pharmaceutical Technology, Oct. 1991, pp. 54-66.
Supelco, Inc. GC/HPLC Bulletin 773D, GC and HPLC Analyses of Polynuclear Aromatic Hydrocarbons, Supelco Inc., Bellefonte, PA 16823-0048, 1983, 4 pages.
CA111(17):152345q.
CA110(19):171960g.
CA109(16):135032b.
CA109(9):72333c.
CA109(4):24507r.
CA108(9):73925p.
CA108(7):52449w.
CA104(25):223476b.
CA102(9):79194x.
CA97(16):134281d.
CA112(7):53970d.
CA111(19):172661t.
CA110(7):56213d.
CA109(17):147995f.
CA109(10):75630h.
CA109(1):2942b.
CA108(17):146078b.
CA107(15):133045t.
CA105(3):23291w.
CA111(22):195652e.
CA110(22):195390x.
CA104(4):24980m.
CA71(22):103637h.
CA113(2): 7155q.
CA112(18):171483v.
CA112(18):171431b.
CA112(8):57164s.
CA109(18):152169u.
CA105(10):90485a.
CA99(16):129082b.
CA115:160036n.
Encyclopedia of Polymer Science and Engineering, vol. 16, Styrene Polymers to Toys, John Wiley and Sons, New York, 1989, Under "Supercritical Fluids", pp. 368, 369 and 387.
Kirk-Othmer Encyclopedia of Chemical Technology, 3.sup.rd Edition, Supplemental Volume, John Wiley and Sons, New York, 1984, Under "Supercritical Fluids" pp. 872-877.
D.H. Ender, "Elastomeric Seals," Chemtech, Jan. 1986, pp. 52-56.
DeCrosta Michelle A.
Jagnandan Indradat
Majka Joseph T.
Schering Corporation
Sergent Rabon
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