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Preparation of poly alpha-1,3-glucan ester films

A glucan ester, film-like technology, applied in the field of preparation of poly alpha-1,3-glucan ester films

Inactive Publication Date: 2017-08-18
DUPONT IND BIOSCIENCES USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Preparation of poly alpha-1,3-glucan ester films
  • Preparation of poly alpha-1,3-glucan ester films

Examples

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Embodiment

[0065] The present disclosure is further illustrated in the following examples. It should be understood that these Examples, while indicating certain preferred aspects herein, are given by way of illustration only. From the foregoing discussion and these Examples, one skilled in the art can ascertain the essential characteristics of the disclosed embodiments of the invention and can make various changes to the disclosed embodiments of the invention without departing from the spirit and scope thereof and modified to suit a variety of uses and conditions.

[0066] abbreviation :

[0067] "mL" is milliliters; "g" is grams; "DI water" is deionized water; "μL" is microliters; "°C" is degrees Celsius; "mg" is milligrams; megahertz; "kgf" ​​is kilogram force.

[0068] general method

[0069] For the determination of the degree of substitution of poly alpha-1,3-glucan acetate derivatives 1 H nuclear magnetic resonance (NMR) method

[0070] use 1 H NMR determination of deg...

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Abstract

The present disclosure is directed toward an extrusion process for making a poly alpha-1,3-glucan ester film. These films can be translucent and used in packaging applications.

Description

[0001] Cross References to Related Applications [0002] This disclosure claims the benefit of priority to US Provisional Application 62 / 017450, filed June 26, 2014, the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure is in the field of poly alpha-1,3-glucan derivatives. In particular, the present disclosure relates to methods of making films and articles of poly alpha-1,3-glucan esters by extrusion. Background technique [0004] Driven by the desire to find new structural polysaccharides using enzymatic synthesis or genetic engineering of microbial or plant hosts, researchers have discovered polysaccharides that are biodegradable and economically obtainable from feedstocks based on renewable resources. Cellulose is a typical example of such polysaccharides and is composed of β-1,4-D-glycosidic linkages of hexopyranose units. Cellulose derivatives such as cellulose-acetate are used in several commercial applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00C08J5/18C08L5/00
CPCC08B37/0009C08J5/18C08L5/00C08J2303/00C08J2301/00C08J2305/00
Inventor V.米斯拉
Owner DUPONT IND BIOSCIENCES USA LLC
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