Patent ID: 9339053
Filing Date: 2016-05-17
CPC Classification: A23P,A23V,A61K,B29B,B29C

Claim Text:
1. A process to prepare a self-reinforced starch composite, comprising: (A) uniformly mixing a matrix phase comprising one or a combination of the substances selected from the group consisting of oxidized starch, cationic starch, and esterified starch, and a particulate reinforced phase comprising cross-linked starch nanocrystals; and wherein the mass ratio of the matrix phase to the particulate reinforced phase is between 4:0.01 and 4:1; and (B) adding the uniform mixture prepared in step (A) into a double screw extruder, heating and kneading the mixture; inputting pure water in an amount of 0.5%-25% of the mixture by weight, thus forming a processable thermoplastic material; and extruding the thermoplastic material into granules or sheets of self-reinforced material or further processing the thermoplastic material into a film.