Enlarged granule starch stilt material for microencapsulated coa

Details Enlarged granule starch stilt material for microencapsulated coa Enlarged granule starch stilt material for microencapsulated coa

1977-11-04

1979-02-13

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

536 47, 536105, 536109, 536111, C08L 100

Patent

active

041395050

ABSTRACT:
Enlarged granule starch useful as a protective stilt material in microencapsulated coatings to prevent premature rupture of the microcapsules. Starch granules are increased in size by alkali-swelling of the granules in aqueous slurry. The enlarged granules are then crosslinked to aid in preserving the enlarged granular form through subsequent aqueous coating applications and thermal drying steps. A combination of hydrocyclone starch granule sizing and granule treatment employing alkali-swelling and crosslinking substantially improves the yield of usable large granule stilt materials obtainable from prime grade wheat starch, and other bimodal granular starches such as barley and rye.

REFERENCES:
patent: 3876629 (1975-04-01), Lotzgesell
patent: 3901725 (1975-08-01), Bond et al.

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