38results about "Amylose/amylopectin derivative coatings" patented technology

A hard coat film includes a transparent plastic film substrate; and a hard coat layer, wherein the hard coat layer is formed of a composition for forming a hard coat layer, the composition containing the following component (A), component (B), and an organic solvent:Component (A): a polyrotaxane,Component (B): a monomer having two or more ethylenically unsaturated groups.

Medical articles having a body member including natural biodegradable polysaccharides are described. The body member is formed from a plurality of natural biodegradable polysaccharides having pendent coupling groups. The body member can also include a bioactive agent which can be released to provide a therapeutic effect to a patient.

Encapsulated colorants for waterborne coating compositions are provided as a system and kit with a method for tinting the water borne coating compositions. The encapsulated colorant comprises at least one water dispersible tinting material to be released into the based coating composition upon dissolution of the encapsulating layer to give the coating composition color. The encapsulating layer surrounding the colorant has at least one polymer that is soluble in aqueous medium surrounding the tinting material wherein the layer has a thickness from about 0.5 to about 5 mils and can dissolve to release the dispersible tinting material in an aqueous coating composition having about 25 to about 45 volume percent solids and about 55 to about 75 volume percent water in less than 15 minutes with agitation at a temperature in the range of about 50 to about 110° F. One or more of the encapsulated colorants as a pouch or pouches are contained in a moisture resistant package until ready for dissolution in the coating composition. A plurality of the encapsulating colorants as pouches in moisture resistant packaging comprise a system which along with one or more clear or tint base water borne coating compositions comprise a kit. A method involves placing one or more pouches in a volume of coating composition with stirring or shaking to provide a color to the composition.

Non-thermoplastic starch fibers having no melting point and having apparent peak wet tensile stress greater than about 0.2 MegaPascals (MPa). The fibers can be manufactured from a composition comprising a modified starch and a cross-linking agent. The composition can have a shear viscosity from about 1 Pascal.Seconds to about 80 Pascal.Seconds and an apparent extensional viscosity in the range of from about 150 Pascal.Seconds to about 13,000 Pascal.Seconds. The composition can comprise from about 50% to about 75% by weight of a modified starch; from about 0.1% to about 10% by weight of an aldehyde cross-linking agent; and from about 25% to about 50% by weight of water. Prior to cross-linking, the modified starch can have a weight average molecular weight greater than about 100,000 g / mol.

The invention provides a three layered reprographic paper having improved strength, stiffness and curl resistance properties, and a method for making same. The paper has a central core layer made largely of cellulose and bulked with a bulking agent such as a diamide salt. A starch-based metered size press coating is pressed on both sides of the core layer, wherein the starch has a high solid content. The coating forms a three layered paper having an I-beam arrangement with high strength outer layers surrounding a low density core.

This invention relates to biopolymer-based compositions and biopolymer-based formed bodies such as film, sheet, capsule, casing or coating-film or spray thereof. In another embodiment, the invention relates to a process for producing a biopolymer-based starting material and biopolymer-based formed bodies such as cited above, for the manufacture of pharmaceutical, veterinary, food for cosmetic products.

A chemically modified plasticized starch (CMPS) is prepared by reacting starch with an organic dibasic acid or an anhydride of the acid in the presence of a plasticizer using optional free radical initiators, and optionally with the incorporation of nano clays in the reactive extrusion process. The starch is thermoplastic and has a lower viscosity than the traditional thermoplastic starch. The CMPS is useful in preparing starch polymer compositions which are at least partially biodegradable.

The invention provides an electrophoretic coating liquid and a preparation method thereof, the electrophoretic coating liquid includes an adhesive and a microcapsule dispersing in the adhesive, the microcapsule comprises a suspension and charged pigment particles dispersing in the suspension, the outer capsule wall of the microcapsule is prepared by use of a natural water-soluble polymer compound, and the adhesive comprises the water-soluble polymer compound and aqueous polyurethane. The invention also provides an electrophoretic display layer and a preparation method thereof, and the electrophoretic display layer is prepared by use of the electrophoretic coating liquid. The electrophoretic coating liquid achieves a good balance in mechanical properties, coating film properties, photoelectric properties and other aspects, and has the characteristic of being easy to coat a film, excellent in coating film appearance and the like, and the electrophoretic display layer prepared by use of the electrophoretic coating liquid has high mechanical performances and good photoelectric performances.

A paper coating composition comprising one or more thickeners, characterised in that at least one of said one or more thickeners is a cold water swellable starch ester, methods of preparing such compositions and their use in coating paper products.

Disclosed is a foaming material composite including a water-soluble polysaccharide having ester linkage or amide linkage, a foaming agent, and a plasticizing agent.

The present invention provides a biodegradable article formed from enzyme-synthesized amylose using phosphorylase, wherein the enzyme-synthesized amylose is composed of glucose monomers exclusively bonded by alpha-1,4-glucosidic likage and has a weight average molecular weight of not less than 100 kDa, preferable not less than 600 kDa. The enzyme-synthesized amylose employed in the present invention has a molecular weight distribution (Mw / Mn) of not more than 1.25 and can be chemically modified if desired. The biodegradable article of the present invention can be produced by (a) the enzyme-synthesized amylose and / or its modified one, or a combination of the amylose (a) and another polymer material (b).

The invention relates to an environment-friendly coating composition for a building interior material. The environment-friendly coating composition comprises an adhesive, a filler, a plasticizer, water and other additives. The environment-friendly coating composition is characterized in that, polyester is used as the adhesive, modified starch is used as an organic filler, and an epoxy resin emulsion is used as the plasticizer. The environment-friendly coating composition is advantageous in that, biodegradable polyester is used as the adhesive, thereby improving biodegradation rate, the epoxy resin emulsion is used as the plasticizer, thereby preventing generation of volatile organic compound, and use of an organic solvent, since the hyrophobic modified starch is used as the organic filler, reducing the condition of tacky coated composition and improving drying speed, thereby improving operation efficiency, and the water is used as the solvent, and therefore a water-based paint composition is provided.

A substantially fat impervious coating (KIT number from about 6 and about 16) coating made from an aqueous solution of a hydroxypropyl high amylose pea starch.

A sand sculpting composition including approximately 100 parts by dry weight of sand, between 0.1 part and 5 parts by dry weight of at least one non-toxic cold water-soluble adhesive agent selected from the group consisting of pre-gelatinized starches, chemically modified starches and chemically modified celluloses, and between 6 and 25 parts by weight water. The adhesive agent has been combined with the sand and an amount of water sufficient to both dissolve the adhesive agent and allow the adhesive agent to coat the particles of sand. A coloring agent may be added to the adhesive agent.

A hard coat film includes a transparent plastic film substrate; and a hard coat layer, wherein the hard coat layer is formed of a composition for forming a hard coat layer, the composition containing the following component (A), component (B), and an organic solvent:Component (A): a polyrotaxane,Component (B): a monomer having two or more ethylenically unsaturated groups.

Novel starch-based glue paste compositions are disclosed composed of (i) a carrier paste containing 5 to 16 wt % of a starch selected from the group consisting of corn starch, wheat starch, rye starch, oat starch, barley starch, potato starch, tapioca starch and pea starch, each being native starch or chemically modified starch, or any mixture thereof and (ii) a main paste with a total starch content of 25 to 50 wt % composed of a mixture of 10 to 30 wt % native rice starch or an acetylated version thereof having an amylose content of 12 to 20 wt %, 1 wt % other compounds and a complementary amylopectin content of 87 to 79 wt %, and 90 to 70 wt % of a starch or mixture of starches selected from the above defined group. Processes for the manufacture of the novel glue paste compositions based on the Stein-Hall method are disclosed, as well as a premix of starches for said manufacture. The glue paste compositions present excellent film forming and glueing properties and are particularly suitable for the manufacture of laminated corrugated board.

A novel adhesive that finds use in a cold corrugating system has a 5 second tack at a temperature of 160° F. of at least 50±2 grams.

The invention discloses an aqueous peelable coating and a preparation method thereof. Raw materials used in the preparation method comprise the following substances (in parts by weight): 100 parts ofpolyvinyl alcohol, 10-20 parts of a modified straight-chain starch, 15-35 parts of a plasticizer, 5-15 parts of polyether modified organic silicon, 0.3-1.0 part of sucrose ester, 0.2-0.5 part of hydroxyl silicone oil, 0.5-2.0 parts of a leveling agent, 1.0-3.0 parts of a thixotropic agent, 0.5-1.0 part of a substrate wetting agent, 0.3-1.0 part of a corrosion inhibitor and 400-600 parts of water.The preparation method comprises the following steps: metering the components, carrying out stirring and mixing in a container with heating, carrying out heating to 95-98 DEG C, carrying out stirring,dissolving and mixing for 2-4 hours, carrying out cooling to the room temperature, and carrying out packaging, so as to obtain the aqueous peelable coating. After being filmed, the coating disclosedby the invention is capable of preventing heavy oil pollution and static electricity, and a formed coating film is high in strength and easy to peel.

The invention relates to pharmaceutical, cosmetic, nutraceutical and food areas, in particular to compositions for coating tablets, capsules and other solid- or semisolid-form substances currently used in different application fields. More specifically, said invention relates to solid ready-for-use compositions for producing laminating solutions or dispersions for solid- or semisolid-form substances and is characterised in that the viscosity of said cold-regenerated solutions or dispersions is less than 1000 centipoises at a solid matter concentration greater than 20%, wherein said viscosity is obtainable by using natural film-forming agents which are cold-soluble and exhibit a low viscosity in an aqueous medium at high concentrations.

A starch with a high content in amylose, obtained through a process comprising acetylation and pre-gellation, can provide useful coatings in food, drug, cosmetic and dietetic fields, both for humans and animals, and also in agriculture.

Ready-for-use film forming solid compositions for producing film coating dispersions for solid- or semisolid-form substances comprising a film forming ingredient of pregelatinized cereal or tuberous hydroxypropyl starches, fatty plasticizers, fillers of non pregelatinized modified and native starches and, substances for improving the final appearance of the film coating characterized in that the viscosity of said cold-regenerated solutions or dispersions is less than 1000 centipoises at a solid matter concentration greater than 20%, wherein said viscosity is obtainable by using natural film-forming agents which are cold-soluble and exhibit a low viscosity in an aqueous medium at high concentrations.

The present invention relates to compositions of starch. The compositions consist of an anionic and a cationic starch wherein at least one of the starches is waxy. The compositions are surprisingly not resulting in an agglomerated product when cooked. The compositions are used in paper or cardboard preparation. The compositions are cooked and added at the wet end of the paper production process. This results in a high possible addition level and the use of the size press is abolished. The resulting paper and board are shown to have better characteristics than the paper and board prepared with the same components which have not been mixed prior to addition but which are added separately.