Abstract: This invention provides partially debranched starch, prepared by enzymatic hydrolysis of the alpha-1,6-D-glucosidic bonds of the starch, comprising amylopectin, partially debranched amylopectin and up to 80%, by weight, short chain amylose. This invention also provides a method for preparing this starch, employing an endo-alpha-1,6-D-glucanohydrolase. The starch of this invention is useful for lending a fat-like, lubricating texture to aqueous dispersions, forming stable opaque clouds, forming thermoreversible gels, high strength gels and water-resistant films, and for thickening and bonding.

Abstract: Improved non-crosslinked and non-degraded amphoteric starch derivatives containing tertiary amino or quaternary ammonium groups and anionic phosphate groups are disclosed. The derivatives which are defined by a minimum bound phosphorus content, a minimum viscosity and other criteria have use as wet-end additives and provide improved drainage properties in the manufacture of paper.

Abstract: Flocking adhesives are prepared from an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with:(a) 10 to 30% by weight of ethylene;(b) 30 to 50% by weight of a C.sub.4 -C.sub.8 alkyl acrylate;(c) 1 to 5% by weight of an N-methylol containing copolymerizable monomer;(d) 0 to 4% by weight of an olefinically unsaturated carboxylic acid; and(e) 0 to 1% by weight of a polyethylenically unsaturated comonomer.

Abstract: Dielectric ink, paste and tape compositions having controlled thermal expansion contain a mixture of glasses wherein at least one glass has a coefficient of thermal expansion (CTE) below the CTE of the substrate to which the dielectric composition is applied and at least one glass has a CTE above the CTE of said substrate. The dielectric compositions significantly reduce or eliminate warpage of the substrate.

Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinuyl chloride comprising 25 to 40% by weight of a vinyl ester of a alkanoic acid; 10-30% by weight ethylene; 20 to 30% weight of di-2-ethylhexyl maleate or fumerate; 20 to 30% by weight of 2-ethylhexyl acrylate; and 1 to 10% by weight of a monocarboxylic acid.

Abstract: The present invention provides an imitation oriental noodle consisting essentially of starch and water, wherein the mung bean starch present in the noodles is replaced with at least about 30% by weight of a crosslinked potato starch having a sediment volume of 2-16 ml or a crosslinked sweet potato starch having a sediment volume of 2-4 ml, the noodle containing the crosslinked potato or sweet potato starch replacement being comparable to the noodle containing 100% mung bean starch. For 100% replacement crosslinked potato starches having a sediment volume of 3-11 are preferred.

Abstract: A pre-patterned circuit board device-attach transfer tape is described which allows a one step mounting of adhesive patterns on a circuit board in the desired configuration for later mounting of surface mounted devices (e.g., semiconductor dies) thereon. The tape product contains the adhesive pattern in a mirror image to that desired on the exposed surface of the circuit board. The product of the present invention is utilized by bringing the tape product into contact with the circuit board so that the adhesive on the carrier film bonds to the desired surface of the circuit board thereby bringing the adhesive patterns into the desired configuration desired on the circuit board. The use of pressure and, possibly, heat preferentially bonds the adhesive to the circuit board and allows for later stripping of the support film from the support film/adhesive/circuit board composite.

Abstract: Heat resistant binders for flexible nonwoven products may be prepared using an emulsion polymer comprising 100 parts by weight of C.sub.1 -C.sub.4 alkyl acrylate or methacrylate ester monomers, 0.5 to 5 parts of a hydroxyalkyl acrylate or methacrylate, 3 to 6 parts of a water soluble N-methylol containing comonomer and 0.1 to 5 parts of a multifunctional comonomer. The binders are useful in the formation of heat resistant flexible products for use in roofing, flooring and filtering materials.

Abstract: Rigid substrates for case and carton sealing and traymaking applications are bonded by spray application of a hot melt adhesive composition comprising 25 to 50 percent of an isotactic thermoplastic polybutene-1/ethylene copolymer containing from about 5.5 to about 10% by weight ethylene; 20 to 60 percent of a tackifier; 15 to 30 percent of an amorphous diluent having a softening point greater than 90.degree. C.; 0 to 2 percent antioxidant; and 0 to 10 percent wax or oil.

Abstract: Laminating adhesives are described for forming flexible laminates having high bond strength, and a high degree of both humidity and water resistance. The one-part laminating adhesive compositions incorporate acrylic polymer emulsions prepared by a "core-shell" multistage polymerization process.

Abstract: A process for the extrusion of gelled products, such as jelly gum confectionaries, in a cooker of former extruder uses unique spray-dried pregelatinized high amylose starches alone or in blends with selected starches to provide extrudates which quickly set and form gels. The products typically contain about 10-18% of the starch (on a dry solids basis), about 70-90% of a sweetener, up to 20% water, and up to 20% of conventional confectionary or pharmaceutical ingredients. The mixture may be heated to about 93.degree. C. (200.degree.-240.degree. F.) prior to extrusion to provide a flowable mixture. The spray-dried, pregelatinized high amylose starches (unmodified or modified) are prepared by a simultaneous steam atomization and spray-drying by process which provides a pregelatinized granular starch or a continuous coupled jet-cooking and spray-drying process which provides a pregelatinized dispersed starch which is substantially non-crystalline and substantially non-retrograded.

Abstract: This invention provides water soluble dispersible hydrophobically modified polycarboxylate polymers which are useful as detergent builders and detergent compositions utilizing these novel polymers as builders, the polymers comprise repeating units of the structure: ##STR1## where Z is ##STR2## A is a repeating unit of structure: ##STR3## B is a repeating unit of structure: ##STR4## with typical repeating units r being derived from a monomer: ##STR5## A derived e.g. from acrylic acid and B derived e.g. from styrene.

Abstract: Heat resistance binders for flexible polyester webs may be prepared using an emulsion polymer,the polymer being prepared by a two-stage polymerization procedure wherein a first stage is prepared based on a relatively low Tg ethylene vinyl acetate polymer and a second stage higher Tg polymer thereby combining the advantageous flexibility and film forming properties of the ethylene vinyl acetate copolymer with the stiffness and heat resistance of the higher Tg copolymer.

Abstract: Thus, the present invention is directed to hot melt adhesive compositions suitable for bookbinding application comprising tackifying resins, at least one wax diluent and a substantially radial styrene-butadiene block copolymer, the copolymer having a styrene content greater than about 35% by weight, a modulus at 300% elongation of at least 4.5 MPa and a solution viscosity less than about 1000 cps.

Abstract: A one-step process for simultaneously compressing and tempering fiberboard panel, which includes the step of applying to the panel prior to compression thereof an aqueous treating composition which comprises a polyvinyl acetate emulsion and optionally up to 40% of a hydrocarbon emulsion, up to 3% of a fluid, water-soluble organosilicone polymer, or up to 5% by weight of a starch crosslinking agent. The polyvinyl acetate emulsion is prepared in the presence of 6-10% by weight of a starch stabilizer selected from the group consisting of derivatized starches and/or converted starches and 0.5-1.5% of a surfactant. The preferred emulsions are polymerized in the presence of alkenyl succinate starches, most preferably octenyl succinate waxy maize starches.

Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 25 to 40% by weight of an vinyl ester of a alkanoic acid; 10-30% by weight ethylene; 20 to 30% by weight of di-2-ethylhexyl maleate or fumarate; 20 to 30% by weight of 2-ethylhexyl acrylate; and 1 to 10% by weight of a mono-carboxylic acid.

Abstract: 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.

Abstract: The present invention provides a method for treating aqueous systems to reduce or prevent the deposition of barium sulphate and other insoluble sulphates therein, comprising the addition to the water of an effective amount of an interpolymer of an ethylenically polymerizable carboxylic acid, and at least one of an ethylenically polymerizable dicarboxylic acid or other copolymerizable comonomer. The polymers are particularly effective in preventing scale precipitate at high levels of barium (e.g. 700 ppm) and under low pH conditions.

Abstract: This invention presents two series of novel hair fixing compositions, the first comprising copolymers of acrylates, N-substituted acrylamides and acrylic acid; and the second comprising copolymers of vinyl acetate or propionate, vinyl esters of a .alpha.-branched carboxylic acids, and alkyl maleates. Such materials, when neutralized with NaOH, KOH, or mixtures of these bases with certain long chain amines, exhibit an enhanced tolerance of non-halogenated hydrocarbons and are particularly useful.

Abstract: A polysaccharide derivative having the structure Sacch--O--Z--Ar--CH.dbd.N--Y or ##STR1## where Sacch--O-- represents a polysaccharide molecule; Z is --(CH.sub.2).sub.n -- or ##STR2## Ar is a divalent aromatic group; Y is (a) a monovalent group derived from a water-soluble substituted or unsubstituted aromatic compound containing only one free primary amine group, or (b) a monovalent group derived from a water-soluble substituted or unsubstituted aliphatic or cycloaliphatic compound containing only one primary amine group, or (c) a multivalent group derived from a water-soluble protein containing more than one primary amine group; n is one or greater; and m is zero or greater, is prepared by first modifying the polysaccharide with a reagent to introduce free aromatic aldehyde groups and then reacting with a suitable amine-containing reagent. The siloxane-containing starch derivatives are useful in glass forming size compositions.