Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Color stripping or subduing
Patent
1998-02-06
2000-07-04
Diamond, Alan
Bleaching and dyeing; fluid treatment and chemical modification
Bleaching
Color stripping or subduing
8440, 521 40, 521 405, 521 495, 528491, 528494, 528495, 528496, 528499, C08J 1108, C08J 1124, C09B 6754, D06L 300
Patent
active
060832835
ABSTRACT:
A method for removing color and extracting dyes from ionically dyeable polymeric materials is provided. The method includes contacting the ionically dyeable polymeric material with a swelling agent for the material under conditions sufficient to effect diffusion of the dye from the material. The process is especially useful for removing colors from ionically dyeable polymeric materials as part of a recycling process for such materials. Also, the extracted dye may be recovered for re-use as the swelling agent and contacting composition are substantially non-reactive with the dye.
REFERENCES:
patent: 1497138 (1924-10-01), Farrow, Jr. et al.
patent: 1547187 (1925-07-01), Weiss
patent: 1791990 (1931-02-01), Whitehead
patent: 2639278 (1953-05-01), Stott et al.
patent: 2742440 (1956-04-01), Stott et al.
patent: 2840606 (1958-06-01), Miller
patent: 2872420 (1959-02-01), Kruyff
patent: 2921038 (1960-01-01), Gunther
patent: 2985500 (1961-05-01), Janson et al.
patent: 3006867 (1961-10-01), Simon
patent: 3468974 (1969-09-01), Elgin
patent: 3562373 (1971-02-01), Logrippo
patent: 3591325 (1971-07-01), Sapers
patent: 3892845 (1975-07-01), Cunningham et al.
patent: 3908680 (1975-09-01), Krezanoski
patent: 4003880 (1977-01-01), Sidebotham et al.
patent: 4013575 (1977-03-01), Castrantas et al.
patent: 4014736 (1977-03-01), Sexton
patent: 4020020 (1977-04-01), Appleyard et al.
patent: 4028159 (1977-06-01), Norris
patent: 4046621 (1977-09-01), Sexton
patent: 4105593 (1978-08-01), Stavrinou
patent: 4116851 (1978-09-01), Rupe et al.
patent: 4118187 (1978-10-01), Sidebotham et al.
patent: 4137393 (1979-01-01), Sidebotham et al.
patent: 4146704 (1979-03-01), Seki et al.
patent: 4158646 (1979-06-01), Benkowski et al.
patent: 4227881 (1980-10-01), Fono
patent: 4238281 (1980-12-01), Histed
patent: 4301000 (1981-11-01), Rankin
patent: 4518459 (1985-05-01), Freis et al.
patent: 4539827 (1985-09-01), Klein et al.
patent: 4546128 (1985-10-01), Nakajima
patent: 4594371 (1986-06-01), Nauman
patent: 4608122 (1986-08-01), Klein et al.
patent: 4666961 (1987-05-01), Nauman
patent: 4775697 (1988-10-01), Schoenhard
patent: 4783193 (1988-11-01), Pensa
patent: 5061735 (1991-10-01), Zielinski
patent: 5085734 (1992-02-01), Griggs
patent: 5145616 (1992-09-01), Sadanobu et al.
patent: 5164043 (1992-11-01), Griggs et al.
patent: 5164044 (1992-11-01), Griggs et al.
patent: 5169876 (1992-12-01), Heitmann et al.
patent: 5188708 (1993-02-01), Griggs et al.
patent: 5198471 (1993-03-01), Nauman et al.
patent: 5211811 (1993-05-01), Griggs et al.
patent: 5275024 (1994-01-01), Parks
patent: 5278282 (1994-01-01), Nauman et al.
patent: 5294384 (1994-03-01), David et al.
patent: 5296099 (1994-03-01), Griggs et al.
patent: 5409570 (1995-04-01), Griggs et al.
patent: 5430068 (1995-07-01), Subramanian
patent: 5441603 (1995-08-01), Griggs et al.
patent: 5454935 (1995-10-01), Magaraggia
patent: 5456725 (1995-10-01), Bruhnke
patent: 5466335 (1995-11-01), Parks
patent: 5482594 (1996-01-01), Salminen
patent: 5840773 (1998-11-01), Booij et al.
patent: 5849804 (1998-12-01), Sarian et al.
Battle et al. Plastics Recycled by Selective Dissolution, The DeWitt Conference (Mar. 25-27, 1992) (revised 1996).
Nauman et al. Rensselaer's Selective Dissolution Process For Plastics Recycling, The Isermann Department of Chemical Engineering, Rensselaer Polytechnic Institute,(1996), Feb.
Chavan, Stripping Of Dyestuffs From Textiles, Silk & Rayon, vol. XII (2): 167-170, (1969), Feb.
Chemi-Washer, Black Clawson Multi-Stage Horizontal Pulp Washer Bulletin No. 66-SBB (Date Unknown).
Coffey, Characteristics Of The Chemi-Washer At G-P's Bellingham And Crossett Mills, Pulping Technology, Paper Trade Journal (Aug. 15, 1982).
Derwent Publication Listing (08254V) Jan., 1974.
Chemical Abstract Search, (1995) (Month Unknown).
Textile Technology Digest Search (date unknown).
Derwent Search, (Apr. 04, 1996).
Derwent Search, (Apr. 27, 1995).
Derwent Search, (Mar. 25, 1996).
Muguet et al., Ozone bleaching of recycled paper, Tappi Journal, vol. 76, No. 11, pp. 141-145 (1992) (month unknown).
Wagner, A new technology for recycling carpet waste, Chemiefasern/Textilindustrie, vol. 28/80, pp. 644-648 (Jul. 1978).
Carpets from plastic waste, Soviet Technology Alert, vol. 1, No. 3 (Mar. 1988).
Derwent Abstract JP 74001036 (Jan. 11, 1974).
Derwent Abstract DE 2425751 (Dec. 11, 1975).
Derwent Abstract DE 3816894 (Nov. 30, 1989).
Derwent Abstract JP 54117579 (Sep. 12, 1979).
Derwent Abstract JP 58119821 (Jul. 16, 1983).
Derwent Abstract JP 60185823 (Sep. 21, 1985).
Derwent Abstract JP 60206868 (Oct. 18, 1985).
Derwent Abstract JP 60219016 (Nov. 01, 1985).
Derwent Abstract JP 51017989 (Feb. 13, 1976).
Derwent Abstract JP 49108198 (Oct. 15, 1974).
Derwent Abstract JP 52026555 (Feb. 28, 1970).
Berkstresser, IV Gordon A.
Dunbar Richard A.
McLellan George R.
Plischke Le Moyne W.
Yang Yiqi
Diamond Alan
Solutia Inc.
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