National Starch and Chemical Investment Holding Corporation

National Starch and Chemical Corporation

Lever Brothers Company, Division of Conopco, Inc.

Lever Brothers, Division of Conopco, Inc.

James L Eden

James J Kasica

Daniel B Solarek

Yong-Cheng Shi

Paul A Altieri

Ralph M Trksak

James P Zallie

Norman L Lacourse

Remo Santacecilia

Mark A Cole

Craig H Leake

Joseph Wieczorek, Jr

Russell J Nesiewicz

Robert H Williams

John W Walker

Michael C Gribnau

Leendert Hoogendijk

Chung-Wai Chiu

Gary T Martino

Roger Jeffcoat

Ton Swarthoff

A Levent Cimecioglu

Frank A Nowak, Jr

Morton W Rutenberg

Eric Weisser

Philippus C Van Der Hoeven

Doreen L Howard

Douglas J Slate

Lambertus B Krijnen

Timothy G Koubek

Bjork Ohlhorst

Leo Walsh

Johan C G Rommens

Frank D J Hartmann

Mahroussa I Auda

Gary Plutchok

Gary Zwiercan

Helena M De Roo

The present invention describes a means for fixing skin care ingredients on the surface of non-woven webs and cellulosic mats. The active ingredients can be released (deposited) onto the skin by normal triggering mechanisms, which include the action of water or urine or by friction or rubbing. The fixative systems described herein provide the ability to control high load levels while not interfering with the wettabliity of the fabric or paper. Additionally, incompatible/reactive ingredients can be treated onto the same web and are kept as separate particles fixed to the surface until released.

Nonwoven webs treated with fixed mobile materials

Method for treating non-woven webs

A stable, solid product of selected starches, active agricultural agents and optionally surfactants and or adjuvants which is readily dispersible in aqueous medium and compatible when dispersed.

Water dispersible starch based physical form modification of agricultural agents

An aqueous, light weight paper laminating adhesive comprising a continuous aqueous phase of from about 15 to 50% by weight of polysaccharide material dispersed in water, the continuous phase polysaccharide material having a zero-shear viscosity of greater than 0.07 Pa&middot;s when measured at 26% (&plus;/&minus;1% solids) and a shear rate of 0.1s ; a shear-thinning index of 0.90 to 1.1; and bleed time of greater than 15 seconds. Also disclosed is another adhesive composition, which is particularly useful in non-contact spay applications and comprises the continuous phase polysaccharide phase described above as well as a second component comprising a water swellable, insoluble polysaccharide particulate phase.

Polysaccharide adhesives for multi-ply paper products

Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a converted starch acetal is hydrolyzed under acidic conditions to form the starch aldehyde which is then spray dried into a cold water soluble starch aldehyde powder.

Cold water soluble starch aldehydes and the method of preparation thereof

This invention involves skin cleaning products and tapes for removing keratotic plugs, dirt and other debris found on the skin and in skin pores and comprising a starch based remoistenable adhesive composition wherein the starch has from about 0 to 70% by weight amylose content and is converted to from about 30 WF to 20 DE.

Starch based adhesives for skin cleaning tape

High solids maltodextrin syrups, some of which are useful as the base for remoistenable adhesives, are prepared by a high solids alpha amylase enzyme conversion process. They are characterized by their high solids content (at least 55 wt. %) and light color. A granular chemically derivatized, optionally converted, starch having a degree of substitution of greater than about 0.01 and less than about 0.5 is used as the starting material. The maltodextrins have a reducing sugar content of about 5-19 dextrose equivalent and a distinct polymodal molecular weight distribution. When a granular highly esterified starch (D.S. of 0.5-1.8) is used as the starting material in the high solids process, the resulting enzyme-converted, esterified maltodextrins are characterized by their improved water dispersibility.

Chemically derived maltodextrins

A high solids, enzyme conversion process for preparing an enzyme-converted starch is carried out by adding to a modified or unmodified starch, preferably a granular starch, water and an enzyme in an amount sufficient to produce a single phase powdered mixture without a visible free water phase. The enzyme is activated by heating while maintaining a substantially constant moisture content in the mixture. The enzyme converted starch is recovered as a syrup, a granular converted starch, or mixtures thereof, or as a powder obtained by drying the syrup.

High solids, single phase process for preparing enzyme-converted starches

The present invention is directed to remoistenable and non-remoistenable adhesives which contain at least about 50 wt % of a maltodextrin syrup having a reducing sugar content of about 5-19 dextrose equivalent and solids content of about 60-80 % water, and an effective amount of other conventional adhesive additives. When the adhesive is a remoistenable adhesive, a chemically derivatized starch having an amylose content of 40 % or less and a D.S. of about 0.01 to less than about 0.50 is used. A preferred remoistenable adhesive also contains polyvinyl acetate and/or ethylene vinyl acetate in an amount from about 15-90 wt. % The maltodextrin syrup is prepared from a converted or a non-converted, chemically derivatized or underivatized granular starch, by a high solids, single phase enzyme conversion process. When derivatized, 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. Some of the chemically-derivatized maltodextrins have a polymodal molecular weight distribution with one peak between about 630-1600 daltons and at least one other peak between about 1600-2,500,000 daltons.

Maltodextrin-based adhesives

Chemically derivatized maltodextrins

A steam-stripping process suitable for the removal of impurities from polysaccharides, including soluble starch hydrolysates, is disclosed herein. This process may be used in combination with other purification processes, such as ultrafiltration, ion exchange, treatment with activated carbon, as well as bleaching process. Soluble starch hydrolysates may also be purified by a combination of ultrafiltration or activated carbon treatment and bleaching. In these processes, the polysaccharide or the soluble starch hydrolysate produced is bland in flavor, free of off-odor, optionally, lighter or white in color and suitable for use in systems requiring these characteristics. Other purification process combinations which are disclosed for removal of undesirable flavors, odors and/or colors from polysaccharides include: 1) ultrafiltration and carbon treatment; 2) ultrafiltration and steam-stripping; 3) steam-stripping and carbon treatment; 4) ion exchange treatment and ultrafiltration; 5) ion exchange treatment and steam-stripping; and 6) ion exchange treatment and carbon treatment. A bleaching process may precede any of these processes. If ozone or a peroxide is employed, the bleaching step may follow any of these processes. Any of the processes may be combined with other processes disclosed herein to provide additional purification measures. The processes are particularly useful for purification of low molecular weight soluble polysaccharide hydrolysates, such as dextrins. These purified polysaccharides are used in improved foods, adhesives, pharmaceuticals and like products.

Purification of polysaccharides

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. A preferred remoistenable adhesive consists essentially of about 15-90% of polyvinyl acetate, ethylene vinyl acetate, or mixtures thereof; about 10-85% of the above maltodextrin syrup; and about 75% water.

High solids, maltodextrin-based adhesives

A continuous coupled jet-cooking/spray-drying process for processing or co-processing inherently water-dispersible or water-soluble crystalline polymers, such as starches, starch mixtures, gums (e.g., locust bean gum, carrageenan, agar), viscosifying proteins (e.g., gelatin), starch-gum mixtures, and fully hydrolyzed polyvinyl alcohols, is disclosed. The process involves the steps of: (a) forming a slurry or paste of the polymer and water, (b) jet-cooking the slurry or paste with steam at a temperature sufficient to fully disperse or solubilize the polymer, (c) immediately conveying and introducing, under elevated temperature and pressure, the jet-cooked dispersion or solution into a nozzle of a spray-dryer chamber, (d) atomizing the jet-cooked dispersion or solution through the nozzle, (e) drying the atomized mist within the spray-dryer chamber at a temperature sufficient to dry the polymer; and (f) recovering the dried polymer as a water-dispersible or water-soluble powder.

Continuous coupled jet-cooking/spray-drying process and novel

A method of protecting sensitive or reactive adjuncts, preferably of the type incorporated in detergent compositions, by dissolving said adjunct in a biopolymer, thereby forming a stable particulate adjunct product comprising a molecular solid solution of adjunct in a biopolymer. Preferred adjuncts to be protected include bleach catalysts, bleach catalyst precursors, bleach precursors, enzymes, fluorescers, germicides, perfumes, anti-dye transfer and anti-dye damage agents and effervescent agents. The protected adjunct is especially useful for incorporation in non-aqueous liquid detergent compositions.

Adjuncts dissolved in molecular solid solutions

Growing community of inventors

East Millstone, NJ, United States of America

James L Eden