Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-11-18
1997-03-18
Mullis, Jeffrey
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
264 4, 536 3, 536124, C08J 500
Patent
active
056124112
ABSTRACT:
Described is a method for preparing a water-swellable, substantially water-insoluble material. The method involves forming a first solution containing a water-soluble phycocolloid. The first solution is then added to a second solution containing an ion capable of rendering the water-soluble phycocolloid substantially water insoluble. The phycocolloid material is then removed from the second solution and subjected to a solvent exchange to remove water present in the phycocolloid material. Hollow particles can be formed by including a gelation-retarding agent in the first solution. Also described is a water-swellable, substantially water-insoluble particle defining an interior void. The particle comprises an outer shell formed from a water-insoluble phycocolloid. The outer shell defines an interior void which contains a phycocolloid.
REFERENCES:
patent: Re32649 (1988-04-01), Brandt et al.
patent: 2420308 (1947-05-01), Gates
patent: 2797201 (1957-06-01), Veatch et al.
patent: 3349079 (1967-10-01), Freedman
patent: 3386921 (1968-06-01), Schweiger et al.
patent: 3653383 (1972-04-01), Wise
patent: 4043952 (1977-08-01), Ganslaw et al.
patent: 4090013 (1978-05-01), Ganslaw et al.
patent: 4400391 (1983-08-01), Connick, Jr.
patent: 4401456 (1983-08-01), Connick, Jr.
patent: 4446261 (1984-05-01), Yamasaki et al.
patent: 4520178 (1985-05-01), Sakata et al.
patent: 4548847 (1985-10-01), Aberson et al.
patent: 4771105 (1988-09-01), Shirai et al.
patent: 4824916 (1989-04-01), Kershner et al.
patent: 5035900 (1991-07-01), Langley et al.
patent: 5073491 (1991-12-01), Familletti
Websters New International Dictionary of the English Language, second edition, p. 2855 (1956) G. C. Merriam, Co.
Websters Ninth New Collegiate Dictionary, Merriam-Webster, p. 218, 1321 (1986).
"NASA Tech Briefs", Nov./Dec. 1986; Producing Refractory Microballoons; pp. 83-84.
Biotechnology and Bioengineering, vol. 33, pp. 79-89; John Wiley & Sons, Inc.; "Alginate as Immobilization Material: I. Correlation between Chemical and Physical Properties of Alginate Gel Beads" written by A. Martinsen et al. Aug. 1989.
Kimberly-Clark Corporation
Mielke Thomas J.
Mullis Jeffrey
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