Abstract: Starch, particularly maize starch, having an amylose content of more than 80% w/w, including physically or chemically modified derivatives thereof, and destructurized and non-destructurized forms thereof. Also, disclosed are hybrid maize seeds capable of producing a starch having an amylose content of more than 80%. Also disclosed are starch fractions of enhanced dietary fiber and/or resistant starch content.

Abstract: Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.

Abstract: A process for improving the mutual compatibility of natural and/or synthetic polymers by the use of cyclodextrin in the polymer mixture, wherein the cyclodextrin represents in particular from about 0.5% to about 20% by weight of the polymer mixture, wherein the polymer mixture includes a starch, in particular a plasticized starch and a synthetic polymer selected in the group consisting of a polyethylene, a polypropylene, a polystyrene, a polyvinyl chloride, a polyvinyl alcohol, and a poly(.epsilon.-caprolactone), wherein the cyclodextrin is provided in the form of a composition containing one of the constituent polymers of the mixture (for example starch), a plasticizer (for example a polyol), a nucleation agent and/or a standard compatibilizing agent.

Abstract: The present invention is directed to a high solids, water-based remoistenable adhesive consisting essentially of at least about 50% to less than 100% of a maltodextrin syrup having a solids content of about 60-80%, 0 to about 50% of water, and an effective amount of a preservative. The maltodextrin syrup is prepared from a converted or a non-converted, chemically derivatized granular starch having an amylose content of 40% or less, by a high solids, single phase enzyme conversion process. The maltodextrin has (i) substituents in an amount sufficient to provide a degree of substitution between greater than about 0.01 and less than about 0.50; (ii) a reducing sugar content of about 5-19 dextrose equivalent; and (iii) a polymodal molecular weight distribution having one peak between about 630-1600 daltons and at least one other peak between about 1600-2,500,000 daltons.

Abstract: A barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a permeant. The substituents on the cyclodextrin molecule causes the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness.

Abstract: A dried film reinforced with coalescable water insoluble polymer particles which are substantially noncoalesced is disclosed. Also disclosed are dried films reinforced with noncoalesced water insoluble polymer particles which are readily water dispersible. Also disclosed are stable aqueous dispersions for formation of such films which comprise (a) a water insoluble component comprising coalescable polymer particles which have a T.sub.g less than 55.degree. C. and a majority of which have a particle size of less than 1 micron; and (b) a water soluble component which comprises a water soluble polymer capable of inhibiting coalescence of the polymer particles, or a water soluble polymer and a component capable of inhibiting coalescence of the polymer particles.

Abstract: Board coating compositions are provided comprising a cationic starch and a vinyl acetate polymerization product as protein binder substitutes.

Abstract: A specific class of water-borne, water redispersible laminating adhesives is disclosed which is desirable for bonding nonwoven substrates to themselves or to other substrates. The adhesives provide improved bond strength and improved water redispersibility when compared to laminating adhesives currently used for the same purpose. Furthermore, the novel adhesives are much less sensitive to the presence of significant levels of plasticizer than are laminating adhesives currently used, which exhibit reduced water redispersibility when such plasticizers are present in significant amounts. The novel laminating adhesives contain an aqueous styrene/acrylic polymer dispersion prepared by radical-initiated emulsion polymerization of unsaturated monomers in the presence of starch degradation products having a weight average molecular weight range of from about 2500 to 25000 and which are obtainable by hydrolysis in the aqueous phase.

Abstract: Adhesive compositions which are free of humectants are prepared from vinyl acetate homopolymer and/or ethylene vinyl acetate copolymer latices which have been prepared by emulsion polymerization methods which utilize dextrin as the protective colloid. The adhesives are characterized by superior adhesion in case making and are prepared by post-adding specific amounts dextrin and a borax to the dextrin-emulsified polymer latex.

Abstract: A curing composition for concrete that is an effective water barrier and that is relatively easily removed contains an acrylic or a styrene polymer latex and a polysaccharide. The polysaccharide makes the coating composition susceptible to enzyme action and thus easily removable by flooding the surface of the coated concrete with a dilute solution of enzyme reactive with the polysaccharide.

Abstract: A barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a permeant. The substituents on the cyclodextrin molecule causes the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness.

Abstract: Conductive polymer doped by a sulphonated cyclodextrin salt and device for obtaining and/or supplying an active substance incorporating said polymer. The dopant used has the following formula (I): ##STR1## in which n is an integer between 2 and 50, M.sup.+ is Na.sup.+, Li.sup.+, K.sup.+ Mg.sup.+ 1/2 or NH.sub.4.sup.+ and R represents --SO.sub.3.sup.- M.sup.+ or --OH, whereby R can differ from one cycle to the other. The doped conductive polymer can be used as an active electrode material in an electrochemical device.

Abstract: The biodegradable polymeric compositions comprise a starch based component and a polymeric component comprising polymers of hydroxyacids or mixtures thereof with polymers deriving from ethylenically unsaturated monomers, particularly polymers of ethylene-vinylalcohol or polyvinylalcohol.

Abstract: A biodegradable resin composition including a saponified ethylene-vinyl acetate copolymer and a starch-based macromolecular substance. The saponified ethylene-vinyl acetate copolymer is one having an ethylene content of 20 to 60 mole %, a vinyl acetate saponification degree of not less than 90 mole %, a melt flow index of 1 to 100 g/10 min as measured under a load of 2160 g at 210.degree. C., and a melt viscosity ratio .eta..sub.60 /.eta..sub.5 of 0.5 to 4 where .eta..sub.60 means the melt viscosity after 60 minutes of standing at 250.degree. C. and the .eta..sub.5 means the melt viscosity after 5 minutes of standing at 250.degree. C. and a starch-based macromolecular substance. A layer of the above composition can be used to fabricate a laminate with a substrate material of a different kind, such as a photodegradable polymer.

Abstract: An improved method is provided for reversibly suppressing the viscosity of an aqueous solution containing a hydrophobically modified thickener by first complexing the hydrophobic moieties of the thickener with a methyl-.beta.-cyclodextrin and then decomplexing the methyl-.beta.-cyclodextrin from the thickener once the aqueous solution containing the thickener is added to the aqueous system which is intended to thicken.

Abstract: Hot melt adhesive compositions comprising selected modified starch esters as the main or base adhesive material wherein the starch ester has an ester component of about 2 to 18 carbon atoms and a DS of from about 0.3 to 3.0 and a sufficient amount of a non-volatile, polar organic diluent to allow the composition to melt and have a viscosity of less than 50,000 cP at an application temperature of 400.degree. F. or less.

Abstract: Aqueous polymer dispersions containing polymers obtainable by free-radical polymerization of unsaturated monomers, and sugared starch, and the use thereof.

Abstract: The improved adhesion is provided by incorporating into an adhesive and/or sealant plastic material an effective amount of cyclodextrin or a complex of cyclodextrin and blowing agent. Where the complex of cyclodextrin and blowing agent is employed, an expandable mixture is formed.

Abstract: A thermoplastic polymeric composition including starch, at least one synthetic thermoplastic polymer and a plasticiser in which the plasticiser is at least one compound selected from the group consisting of:a) polyols formed by from 1 to 20 repeating hydroxylated units each including from 2 to 6 carbon atoms, provided that when the polyol is formed by only one repeating unit it has at least 4 carbon atoms, with the exclusion of sorbitol,b) ethers, thioethers, inorganic and organic esters, acetals and amino-derivatives of polyols formed by from 1 to 20 repeating hydroxylated units each including from 2 to 6 carbon atoms with the exclusion of acetic esters of glycerine, triethyl citrate and tributyl citrate,c) polyol reaction products having from 1 to 20 repeating hydroxylated units each including from 2 to 6 carbon atoms with chain extenders;d) polyol oxidation products having from 1 to 20 repeating hydroxylated units each including from 2 to 6 carbon atoms including at least one aldehydic or carboxylic functi

Abstract: A multicomponent adhesive composition of:(A) an elastomer dissolved in a polymerizable acrylic component;(B) a polymerization starter selected from peroxides, hydroperoxides, peracids, peresters, oxaziridines and fluorinated oxaziridines;(C) a starter-activating agent; and(D) a starter stabilizing agent selected from cyclodextrins, calyxarenes and cavitands.

Abstract: The material, which is usable for the production of biodegradable articles in film, sheet or fiber form, can be produced by extrusion from a molten mass including a synthetic thermoplastic polymer and a destructured starch to which a boron containing compound, such as boric acid, metaboric acid, borax and derivatives thereof has been added. Articles made of this material have improved transparency, Young's modulus and tear strength.

Abstract: A high speed corrugating adhesive having a carrier phase comprised of starch, modified starch or dextrin and polyvinyl alcohol in an aqueous emulsion wherein a cold water soluble, partially hydrolyzed, polyvinyl alcohol is used as a starting material. The polyvinyl alcohol is further hydrolyzed in situ to a degree of hydrolysis of more than about 95% by heating it in the presence of water, caustic, and starch, modified starch or dextrin. The carrier phase is admixed with a boron containing compound and a suspension of water and starch to prepare the corrugating adhesive for use in a corrugating machine.

Abstract: The flavor protecting properties of interior container coating compositions are improved by the inclusion of cyclodextrins in the composition.

Abstract: A process is described for the production of an aqueous polymer dispersion by polymerization of ethylenically unsaturated compounds by means of free-radical initiators in the presence of starch and/or starch derivatives and optional further conventional adjuvants, and which the dispersions are coagulate-free, have a low viscosity, and a small particle size, said process comprising polymerizing an ethylenically unsaturated diene monomer or mixture of monomers consisting of20 to 100% by weight of a diene,0 to 80% by weight of a vinyl-aromatic monomer,0 to 50% by weight of an ethylenically unsaturated monomerin the presence of an aqueous solution or dispersion of dextrins containing 10 parts to 200 parts by weight dextrins, which are optionally chemically modified, wherein the content of said dextrins having a molecular weight in excess of 5000 is at least 50% by weight and the content of dextrins having a molecular weight in excess of 100,000 is not in excess of 5% by weight of the dextrin component.

Abstract: A method is provided for improving thickeners used in aqueous system. The improvement is directed to the elimination of organic cosolvents which are conventionally added to aqueous solutions of certain hydrophobic thickeners. This method involves the reversible complexation of cyclodextrin compounds with hydrophobic moieties on the thickener molecule to suppress the viscosity of the aqueous solution containing the thickener so that such the solution can be easily handled. This is followed by decomplexing the cyclodextrin from the thickener to permit the thickener to perform its intended function.

Abstract: A water-dispersible, self-crosslinking non-formaldehyde latex is prepared by reacting a starch-polymer graft with a glyoxal compound at temperatures of at least 70.degree. C. to produce a stable emulsion with low viscosity and which upon drying and curing provides a film having good tensile, elongation, water resistance and anti-wicking properties.

Abstract: A process is disclosed for preparing a polymer/starch composite. The process involves forming the polymer in the presence of starch, an organometallic cocatalyst, and a particulate olefin polymerization catalyst. Also there is disclosed a process for improving the activity of a particulate olefin polymerization catalyst by the employment of a suitable amount of starch during the polymerization.

Abstract: A high speed corrugating adhesive having a carrier phase comprised of starch, modified starch or dextrin and polyvinyl alcohol in an aqueous emulsion wherein a cold water soluble, partially hydrolyzed, polyvinyl alcohol is used as a starting material. The polyvinyl alcohol is further hydrolyzed in situ to a degree of hydrolysis of more than about 95% by heating it in the presence of water, caustic, and starch, modified starch or dextrin. The carrier phase is admixed with a boron containing compound and a suspension of water and starch to prepare the corrugating adhesive for use in a corrugating machine.

Abstract: Environmentally degradable blends comprising ethylene-carbon monoxide copolymers, polysaccharide, and optionally, unsaturated oil are disclosed. The invention polymer blends are both photodegradable and biodegradable.

Abstract: An adhesive composition is derived from an acrylate ester polymer, dextrin, a surfactant and optionally a tackifier.

Abstract: A binder for non-woven fibers or fabrics is prepared comprising a starch-polymer graft, starch and a starch crosslinking agent. An acrylamide copolymer may optionally be included. The binder is useful for non-woven fibers such as a polyester fiber mat, and particularly single ply, bitumin roofing materials.

Abstract: The present invention relates to an aqueous acrylate polymer dispersion having a total solids content of 30 to 60% by weight polymerizing one or more acrylate monomers optionally together with other olefinically unsaturated monomer(s) in the presence of dextrin at least 70% of which has a molecular weight in the range of 1000 to 25000 and not more than 10% has a molecular weight above 25000.

Abstract: Self-adhesive sheet materials may be made by applying to the surface of a sheet an adhesive composition comprising the polymer of an acrylic ester of a saturated alcohol with two to twelve carbon atoms, a surfactant, and dextrin. When the proportion of dextrin is within the range of 4 to 30% by weight, based on the weight of the components specified, and especially when the alcohol has at least four carbon atoms, the adhesive provides pressure-sensitive, releasable, articles, e.g., label or tapes.

Abstract: A crystalline polyolefin composition is described, comprising a crystalline polyolefin, a dibenzylidenesorbitol-type compound and a cyclodextrin, the amount of said dibenzylidenesorbitol-type compound being 0.01 to 1 part by weight per 100 parts by weight of the crystalline polyolefin, the amount of said cyclodextrin being 0.001 to 1,000 parts by weight per 100 parts by weight of the dibenzylidenesorbitol-type compound, from which formed articles having both excellent transparency and greatly improved odor-non-emitting properties can be obtained.

Abstract: A composition comprising a polyvinyl acetate homopolymer emulsion, glyceryl triacetate, silicon, epoxidized oil, talc, fumed silica and dextrin exhibiting remarkable molding, coloring and printing properties for used as novelty items, activity toys and molding compounds. This composition is also for use as an artist's tool, transfer and printing medium, as an exercising device and for art therapy. The molded object, after exposure to air, becomes dry and will remain flexible and permanent, including fine detail and brilliant colors. The composition may contain suitable food dyes, which allows the color to be transferred from the compound to paper, canvas, fabric and wall. The color print dries instantly. Luster and pearlescent pigments brushed on the surface of the molded objects gives the appearance of cast precious metal.

Abstract: Corrugating adhesives free of incompatibility problems with a fully hydrolyzed polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a fully hydrolyzed water soluble polyvinyl alcohol composition.

Abstract: A transparent gel composition is provided for dressing of skin wounds. The dressing is in the form of a sheet comprising dextrin and a water-swellable, cross-linked polymer selected from polyacrylamide or polymethacrylamide. The ratio of dextrin to polymer ranges from about 2:1 to 1:1.

Abstract: A substance based on polyurethane from which biodegradable materials can be obtained by rolling comprises, as well as a polyurethane resin serving as its essential constituent, a carbohydrate, at least one second thermoplastic polymer which is miscible in the molten state with the polyurethane resin and/or at least one third biodegradable polymer chosen from among biodegradable aliphatic polyesters, preferably of the same nature as the polyurethane resin used.

Abstract: Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric, saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers by an emulsion polymerization method in 100 parts by weight of an aqueous solution of from 1.7 to 25% by weight of a degraded starch having a viscosity .eta..sub.i of from 0.12 to 0.50 dl/g, at from 40.degree. to 100.degree. C. in the presence of a peroxide-containing initiator.

Abstract: Corrugating adhesive free of incompatibility problems with a fully hydrolyzed polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a fully hydrolyzed water soluble polyvinyl alcohol composition.

Abstract: The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.

Abstract: A synthetic resin product contains various substances such as perfumes, insectifuges/insecticides, mold/mildew-proofing agents and anti-fungi agents which are inactivated by forming an inclusion compound thereof in cyclodextrin and coating them with glycitol(s) to thereby prolong the duration period of the substance. A process for the production of the same is further disclosed wherein the glycitol is provided in the form of reduced millet jelly or reduced cyclodextrin millet jelly.

Abstract: Water reducible, water-remoistenable adhesive compositions are made from a blend of (a) an aqueous emulsion of a polymer of vinyl acetate, (b) an organic solvent solution of a copolymer of vinyl acetate and vinyl pyrrolidone having dextrin dispersed therein, and (c) an aqueous emulsion of an ester gum tackifier.

Abstract: Amylaceous composition of mixtures based on synthetic or natural binders or compounds employed in the manufacture of certain textile or paratextile products and particularly of the composite textile type. It comprises:from 7% to 45% by weight, preferably from 10% to 25% by weight, of a starch swelling in cold water, if necessary modified chemically,from 55% to 93% by weight, preferably from 70% to 85% by weight, of granular starch, modified chemically.

Abstract: Aqueous redispersible powders which contain a water-soluble polymer and at least one organic silicon compound, in which at least 50 percent by weight of the organic silicon compound(s) used to prepare these powders are liquid or solid at room temperature at 1,020 hPa (abs.), have a boiling point of at least 150.degree. C. at 1,020 hPa (abs.), and contain an average of not more than 1.8 SiC-bonded organic radicals per silicon atom, and have at least one hydrogen atom bonded directly to silicon per molecule, or at least one hydroxy group bonded to silicon per molecule, or at least one hydrocarbon radical bonded to silicon via oxygen per molecule which may be substituted by an alkoxy group, or a mixture of at least two such condensable substituents in which the organic silicon compound(s) are used in an amount of at least 30 percent by weight, based on the total weight of the powder (calculated as anhydrous powder).

Abstract: The process of preparing a formaldehyde-free, thermosetting resin which is especially useful for bonding lignocellulosic materials together to form plywood or particle board, which process comprises first reacting an aqueous preparation containing a carbohydrate raw material with a mineral acid to convert the carbohydrate to polymerizable reactants and second reacting the polymerizable reactants with ammonia to form the thermosetting resin. The resin can be further cross-linked to form an insoluble resinous material by heating.

Abstract: Remoistenable adhesive compositions are prepared by adding to ethylene vinyl acetate resin latices which have been polymerized utilizing dextrin as the protective colloid sufficient phosphoric acid to lower the pH to about 2.

Abstract: Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a partially hydrolized water soluble polyvinyl alcohol composition.

Abstract: Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a partially hydrolized water soluble polyvinyl alcohol composition.

Abstract: Corrugating adhesives free of incompatibility problems with water soluble partially hydrolized polyvinyl alcohol comprise a major portion of water, starch, strong base, a boric acid compound and a partially hydrolized water soluble polyvinyl alcohol composition.