摘要:
The present invention relates to modelling doughs comprising; a) at least one starch-containing material; b) at least on low vapour pressure polar solvent; and c) an aqueous component. Typically the doughs will also contain optional ingredients such as softeners, preservatives and/or additives. The invention further relates to filled doughs comprising the modelling doughs incorporating an inert filler and to methods for the production of both the modelling dough and the filled dough.
摘要:
The invention provides for an adhesive composition that can both be used as melt adhesive composition and as drying adhesive composition. Such an adhesive composition comprises a thermoreversible gelling starch, a bonding starch and a plasticizer.
摘要:
The invention relates to a process for grinding cellulose ether comprising the steps of: a) grinding a cellulose ether comprising 20 to 90 wt % of water, based on the total weight of cellulose ether and water, and a cationic surfactant in a mill; and b) optionally drying the mixture while grinding, prior to or following the step of grinding.
摘要:
A starch-polyester graft copolymer and chemically modified starch-polyester graft copolymer composition comprising a chemically modified starch or chemically modified starch-nanoclay product is described. The composition can be produced continuously in a twin-screw co-rotating extruder. The starch-polyester graft copolymer can be solvent cast, melt cast and blown into clear transparent film particularly for use in single use disposable applications and can be biodegradable.
摘要:
Polyoxymethylene compositions that include 90 to 99.9 weight percent of at least one polyacetal polymer and 0.1 to 10 wt % of at least one polysaccharide substantially free of acidic material selected from the group consisting of amylopectin from maize and soluble starch where the weight percent of the polymer and the polysaccharide are based on their combined weight. Articles made from these compositions.
摘要:
A biodegradable shaped product comprising an expanded modified flour product preferably having at least 40% by weight amylose content and containing about 2% or more by weight of an inorganic water soluble salt, said expanded product having a low density, closed cell structure with good resilience and compressibility.Another embodiment provides a biodegradable packaging material comprising an expanded, low density, closed cell modified flour product, the flour preferably having at least 40% by weight amylose content and containing about 2% or more by weight of an inorganic water soluble salt, and the expanded product having a bulk density of less than about 2.0 lb/ft.sup.3, a resiliency of at least about 50%, and a compressibility of from about 100 to 800 g/cm.sup.2.
摘要翻译:一种可生物降解的成型产品,其包含膨胀改性的面粉产品,优选具有至少40重量%的直链淀粉含量并含有约2重量%或更多的无机水溶性盐,所述膨胀产品具有低密度,具有良好弹性的闭孔结构 和压缩性。 另一个实施方案提供了包含膨胀的低密度闭孔改性面粉产品的生物可降解包装材料,所述面粉优选具有至少40重量%的直链淀粉含量并且含有约2重量%或更多的无机水溶性盐, 体积密度小于约2.0lb / ft 3,弹性至少约50%,压缩率为约100至800g / cm 2的膨胀产品。
摘要:
The caseinates which provide imitation cheeses with desirable texture, melt and oil emulsification characteristics are replaced in whole, or in part, by pregelatinized debranched starches which have been enzymatically prepared by hydrolyzing all, or part, of the alpha-1,6-D-glycosidic bonds of branched starch molecules (amylpectin). The debranched starches may be derivatized, converted or crosslinked, or blended with other selected starches in imitation cheeses.
摘要:
The volatile alkali salt of the reaction product of a waxy starch product having a high amylopectin content and styrene-maleic anhydride copolymer and the method of making such product comprising hydrolyzing the copolymer in the presence of the high amylopectin starch product at an elevated temperature and in the presence of water for a time sufficient to hydrolyze the copolymer, disperse the starch in water, and permit the copolymer and starch to react, adding a volatile alkali to the heated mixture, and continuing the heating for a time sufficient to form the volatile alkali salt of said reaction product. The invention also comprises coatings comprising the volatile alkali salt of said reaction product.
摘要:
Adhesive composition comprising starch, dextrine and a polyacrylamide. The composition is carried by water; but, when the composition is applied to a substrate, the water is evaporated to produce a water activatable adhesive. Thus, the composition is suitable for application to a paper backing to form an adhesive tape.Method of preparing the adhesive from a dry polyacrylamide starting material includes the steps of first dissolving the dextrine and dry polyacrylamide in water and allowing the dextrine and polyacrylamide to mix. The starch is then added to that mixture. Preferably, the dextrine and polyacrylamide are mixed for at least a half-hour before the starch is added. To prevent the particles of dextrine and polyacrylamide from agglomerating together, it has been found advantageous to mix the dextrine and polyacrylamide in small batches. This step, however, is not critical.It is also possible to utilize an aqueous solution containing dissolved polyacrylamide, (liquid polyacrylamide) as a starting material. In this embodiment, the dextrine, liquid polyacrylamide and starch are added to water in any order to form the adhesive mixture.