SHANGHAI ZAIHE INDUSTRIAL INVESTMENT CO., LTD. Patent applications |
Patent application number | Title | Published |
20140303285 | NOVEL BIODEGRADABLE MASTER BATCH AND PREPARATION METHOD THEREOF - The present invention provides a biodegradable master batch and a preparation method thereof. The biodegradable master batch is prepared by in-situ polymerization of the components in the following formula in weight parts: 10-80 parts of biodegradable monomer or prepolymer, 0.01-5 parts of catalyst, 0.05-5 parts of reaction activator, 0.1-5 parts of thermal stabilizer, 0-80 parts of flame retardant, 0-80 parts of filler, 0-80 parts of antistatic agent, 0-80 parts of pigment, 0-80 parts of foaming agent, and 0-5 parts of surface coupling agent. Provided in the present invention are the biodegradable polymer master batch having good dispersion effect and excellent interface bonding property, and the preparation method thereof. | 10-09-2014 |
20140148534 | THERMOLASTIC STARCH, BIODEGRADABLE POLYESTER/STARCH COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF - A thermoplastic starch (TPS) comprises (in weight parts) 20-80 parts of starch, 5-40 parts of biodegradable polyester prepolymer, 0.01-10 parts of reaction activator, 0.01-1.0 part of catalytic deactivator, 0.01-1.0 part of antioxidant, and 5-50 parts of auxiliary agents. The said prepolymer has a molecular weight of 10,000-100,000 Daltons, a viscosity range of 0.30-1.2 dL/g, which is measured by Ubbelohde viscometer method, and a melting point range of 60-180° C. The terminal reactive group content of the prepolymer is 1.0-20.0 meq/Kg, which is measured by a terminal group titration process. A polyester/starch composite material comprising the TPS and its preparation method are also provided. | 05-29-2014 |