Removal of undesirable material from water-soluble cellulose eth

Details Removal of undesirable material from water-soluble cellulose eth Removal of undesirable material from water-soluble cellulose eth

1991-12-30

1993-06-08

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 85, 536 90, 536 91, 536 95, 536 96, 536 97, 536 98, 536 99, 536100, C08B 1102, C08B 1112, C08B 1120, C08B 11193

Patent

active

052181073

ABSTRACT:
This invention is a process of removing water-soluble impurities from a water-soluble cellulose ether aqueous solution containing such water-soluble impurities comprising treating an aqueous solution comprising a water-soluble cellulose ether and a water-soluble impurity by means of ultrafiltration and diafiltration at conditions effective to produce a treated aqueous solution having a reduced concentration of the water-soluble impurity and an increased concentration of the water-soluble cellulose ether.

REFERENCES:
patent: 3537988 (1970-11-01), Marcinkowsky et al.
patent: 3773752 (1973-11-01), Buchanan et al.
patent: 3856569 (1974-12-01), Strong
patent: 4000065 (1976-12-01), Ladha et al.
patent: 4129722 (1978-12-01), Iovine et al.
patent: 4141825 (1979-02-01), Conger
patent: 4296235 (1981-10-01), Ziche
patent: 4299825 (1981-11-01), Lee
patent: 4404370 (1983-09-01), Bernert et al.
patent: 4419490 (1983-12-01), Bayer et al.
patent: 4429122 (1984-01-01), Zupancic
patent: 4581446 (1986-04-01), Schulz
patent: 4672113 (1987-06-01), Wallisch et al.
patent: 4761186 (1988-08-01), Schara et al.
patent: 4819617 (1989-04-01), Goldberg et al.
patent: 4988807 (1991-01-01), Christensen et al.
Derwent Publication, 87-050725/08, AKAD Wissenschaft DDR, DD-240-208-A)Aug. 16, 1985.
Derwent Publication, 58054D/32, Dainippon Toryo KK, J8 1029-596, Jun. 15, 1976.
Derwent Publication, 90027292/04, INA Shokuhin Kogyo, JO 1306-401-A, Jun. 2, 1988.

Affiliated with

Also associated with

Rating

Removal of undesirable material from water-soluble cellulose eth does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removal of undesirable material from water-soluble cellulose eth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of undesirable material from water-soluble cellulose eth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1935139