Starch adduct encasement of particulate elastomers

Details Starch adduct encasement of particulate elastomers Starch adduct encasement of particulate elastomers

1980-10-30

1982-09-07

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523201, 523205, 523207, 523334, 524 47, 525 5426, C08L 304, C08L 2100

Patent

active

043484921

ABSTRACT:
Powdered and crumb rubber are prepared by dispersing in a starch alkoxide paste appropriately sized particles of wet curd from the precipitation of a latex emulsion, and then insolubilizing the paste by treatment with select bivalent cations. The result is a starch adduct encasing the particulate elastomer, thereby preventing agglomeration and congealing upon storage.

REFERENCES:
patent: 3673136 (1972-06-01), Buchanan et al.
patent: 3714087 (1973-01-01), Buchanan et al.
patent: 3830762 (1974-08-01), Abbott
patent: 3915909 (1975-10-01), Schnoring et al.
patent: 3941767 (1976-03-01), Abbott
patent: 4194999 (1980-03-01), Hayashi et al.
W. J. Connick, Jr., "Encapsulation of Herbicides in Alginate Gels for Aquatic Weed Control" Proc. of 6th International Symposium on Controlled Release of Bioactive Materials, 6-8, Aug. 1979, New Orleans, La.
Allinger et al, Organic Chemistry, 1971, Worth Publishers, Inc., New York, N.Y. pp. 436-440, "Alkoxides and Phenoxides, Ether Formation".

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