摘要:
A resilient, low density, biodegradable, packaging material which is formed by the extrusion through a twin-screw extruder of a base mixture of vegetable oil, polyvinyl alcohol, glycerine, a proteinaceous grain meal, glycerol monostearate, a non-modified starch and water.
摘要:
Biodegradable moldable products and films prepared from a compatible blend containing a biodegradable, hydrophobic, starch ester and a biodegradable polyester, and optionally a biodegradable and miscible plasticizer and/or a compatible filler.
摘要:
To form a binder from naturally occurring products without extraction or purification steps, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves. The protein has a thermoplastic microstructure with linear polymers of moleculer weight of at least 2,000 linked with peptide linkages of at least 50 in number. The naturally occurring product is ground or milled without further processing and thus includes carbohydrates, particularly as cellulose, and possibly fats, yeast or materials yielding ash upon burning, with the carbohydrates being at least 5 percent of the proteins by weight. The binder may include some initiators or catalysts to polymerize fats or other initiators or catalysts to polymerize proteins. Structures formed using the binder may be made from naturally occurring agricultural products with the protein already in them, or in the alternative, the binder may be mixed with filler material and water from other sources.
摘要:
The present invention provides a biodegradable thermoplastic composition made of a cereal grain that is treated with an organic solvent, and optionally a cross-linking agent such as an aldehyde, an acid anhydride or an epoxide, to link together the starch and protein of the cereal grain. The compositions may be used to make extruded or molded articles that are biodegradable, water-resistant, and have a high level of physical strength.
摘要:
To form a composition board from naturally occurring products without extraction or purification steps, the naturally occurring material is held together with a binder that is added or is already within the naturally occurring material. In one embodiment, the binder utilizes proteins from the germ or endosperm of cereal grasses or from the seed of buckwheat, oil seed plants, Amaranthus or leguminous plants or from leaves. The protein has a thermoplastic microstructure with linear polymers of molecular weight of at least 2,000 linked with peptide linkages of at least 50 in number. The naturally occurring product is ground or milled without further processing and thus includes carbohydrates, particularly as cellulose, and possibly fats, yeast or materials yielding ash upon burning, with the carbohydrates being at least 5 percent of the proteins by weight. The binder may include some initiators or catalysts to polymerize fats or other initiators or catalysts to polymerize proteins.
摘要:
Covalently modified bacterial polysaccharides and proteins; covalent conjugates of such polysaccharides linked by a bigeneric spacer, which permits proof of covalency and facilitates purification of conjugated materials, with immunogenic bacterial membrane or other proteins, which conjugates are useful components of bacterial vaccines; and methods of preparing such polysaccharides, proteins and conjugates and of confirming the covalency of the linkage between polysaccharides and proteins.
摘要:
Disclosed is a composition for stopping leaks which comprises the combination of a fibrillated fiber and a particulate material, such as a seed meal, in a suspension in a liquid medium. A preferred fibrillated fiber comprises the polymer, poly(imino-1,4-phenyleneiminoterephthaloyl).
摘要:
Process for the production of pressed bodies from municipal refuse or waste, especially refuse having a content of wood-based materials, plaster and animal and vegetable substances, in which the refuse is subjected to a treatment for reducing particle size as well as for the separation of metals and similar hard, inorganic fractions. After collection, the refuse is divided up without the addition of fluid and is thereafter dried in a hot gas to reduce the water content. The particles of refuse material are screened in an air stream to separate heavy fractions and thereafter are pressed to pressed bodies during the addition of an adhesive and/or binding agent.
摘要:
Block copolymer compositions having improved adhesion to porous substrates are prepared by employing an anionic polyarene as a component instead of a free radical polymerized polyarene. Also disclosed is a process for simultaneously preparing the block copolymer and anionic polyarene.