1511 results about "Tributyl citrate" patented technology

A barrier composition which is injection mouldable and able to be made into a transparent film or incorporated (by co-extrusion and / or lamination) into multi-layer film products, the composition on dry basis: a) from 45 to 90% by weight of a starch and / or a modified starch selected from starches modified by reaction with a hydroxyl alkyl group, an acetate or a dicarboxylic acid anhydride or a grafting polymer; b) from 4 to 12% by weight of a water soluble polymer selected from polyvinyl alcohol, polyvinylacetate, and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten state of the starch components c) from 5 to 45% by weight of a non-crystallising mixture of sorbitol and at least one other plasticizer selected from glycerol, maltitol, xylitol, mannitol, glycerol trioleate, epoxidised linseed or soybean oil, tributyl citrate, acetyl tri-ethyl citrate, glyceryl triacetate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate; polyethylene oxide or polyethylene glycol; d) from 0.3 to 2.5% by weight of a C12-22 fatty acid or salt; e) from 0.25% to 3% of an emulsifier system having a hydrophilic lipophilic balance value between 2 and 10. The barrier film may be co-injection moulded with polyethylene terephthalate (PET) or polylactic acid (PLA) for blow moulding into beverage bottles, with polyethylene (PE) or polypropylene (PP) or biodegradable polymers for high gas-barrier containers or closures, or may be co-extruded with polyethylene, polypropylene or polylactic acid for thin film packaging applications or for blow-moulded containers.

The invention discloses a low-cost biology base full degradation thin film and a preparation method thereof. The thin film is prepared from the following ingredients in parts by mass: 15 to 25 parts of polyglycollide, 25 to 35 parts of corn starch, 35 to 55 parts of poly(butyleneadipate-co-terephthalate), 5 parts of compatilizers, 3.75 to 12.25 parts of starch plasticizers, 0.5 to 0.7 part of citric acid, 0.75 to 1.25 parts of acetyl tributyl citrate, 0.3 to 0.5 part of maleic anhydride, 0.2 part of antioxidants 164 and 0.2 part of 2-(2'-hydroxyl-5'-methyl phenyl)benzotriazole. The low-cost biology base full degradation thin film provided by the invention has the advantages that the biology base content can reach 30 percent or higher; the cost is lower; the stretching intensity exceeds that of a conventional PE thin film; very important significance is realized on solving the problem of white pollution and promoting the popularization and the application of a full biodegrade material.