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US 2018/0021238 A1Published application
Colloidal dispersions of poly alpha-1,3-glucan based polymers
AssigneeE. I. Du Pont de Nemours and Company
InventorsJi Yeon Huh, Natnael Behabtu, Rakesh Nambiar
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Abstract
A colloidal dispersion is disclosed comprising poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan and a solvent. The colloidal dispersion has utility in various applications, including food, oil field, pharmaceutical, personal care and specialty industries.
Claims18
A colloidal dispersion comprising:
- (a) poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan;
- and
- (b) a solvent.
A personal care product comprising a colloidal dispersion comprising:
- (a) poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan;
- and
- (b) a solvent.
A food product comprising a colloidal dispersion comprising:
- (a) poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan;
- and
- (b) a solvent.
A process for making a poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan colloidal dispersion comprising:
- (a) heating an enzyme reaction solution comprising an aqueous basic buffered solution of an enzyme, sucrose and, optionally, antimicrobial agent to make a slurry containing poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan;
- (b) filtering the slurry to isolate the poly alpha-1,3-glucan or poly alpha-1,3-1,6-glucan in the form of a wet cake;
- (c) washing the wet cake with water;
- and
- (d) dispersing the wet cake in water to form a poly alpha-1,3-glucan colloidal dispersion.
2 more elements
Dependencies are inferred from the claim text.