Bacterial cellulose-containing molding material having high dynamic strength
AssigneesAgency of Industrial Science and Technology, Sony Corporation, Ajinomoto Co., Inc.
InventorsMasatoshi Iguchi, Shigenobu Mitsuhashi, Kunihiro Ichimura, Yoshio Nishi, Masaru Uryu, Shigeru Yamanaka, Kunihiko Watanabe
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Abstract
A molding material having high dynamic strength which contains bacterial cellulose having ribbon-shaped microfibrils. Such material is advantageously used as a reinforcing material for composite plastics having high strength, as high quality paper or as acoustic diaphragms for percussion instruments.
Claims26
A molded material having high dynamic strength and a modulus of elasticity of at least 7.4 GPa, containing ribbon-shaped microfibrils of bacterial cellulose, which is produced by:
- (a) culturing a bacteria capable of producing cellulose in a nutrient medium,
- (b) withdrawing the cellulose produced from said culture in the form of a gel, and
- (c) pressing said gel to remove water from said cellulose by squeezing the same at a pressure sufficient to enhance said dynamic strength or macerating the same or a combination thereof.
Dependencies are inferred from the claim text.