Some nanopartides described herein have at least two compounds, or a reaction produd of them. At least the first compound is in part or entirely bio-based. The second compound is a monomer, oligomer, macromer or polymer containing at least one moiety or functional group not present in the first compound. The nanopartides may be made, for example, prepared by a reactive extrusion process. In on example, nanopartides are made with starch and alkyl polyglycoside (APG), a bio-based surfactant oligomer. In another example, nanopartides are made with starch and maleated alkyl polyglycoside, a bio-based macromer. These nanopartides may be co polymerized with other monomers, for example to produce a latex binder, in a free radical copolymerization process.
This patent describes formaldehyde free or formaldehyde reduced binders useful, for example, in a fiber based composite material such as glass or other mineral fiber insulation, non-woven fabric or wood-based board. In one example, melamine is used as an acidic solution or a salt. The salt or solution is used to create an aqueous binder with other components such as a polyol and a crosslinker. A preferred polyol is a nanoparticle comprising high molecular weight starch. In other examples, binders include mixtures of a polyol with urea and a crosslinker. In other examples, a multi-component nanoparticle is made by reacting a polyol such as starch in an extruder with an insolubilizer such as melamine or urea. The resulting particles are mixed with water, optionally with other components such as an additional crosslinker, to create an aqueous binder.
Curable sheared or extruded, cross linked starch nanoparticle latex binder for use with mineral, natural organic or synthetic fibre products and non-woven mats
A curable aqueous binder composition comprising sheared or extruded cross linked starch particles and a crosslinking agent for use in the formation of composite materials such as mineral, natural organic or synthetic fiber products including mineral fiber insulation, non-woven mats, fiberglass insulation and related glass fiber products as well as wood based products and construction materials. In one application the curable aqueous starch binder composition may be blended with a second non-formaldehyde resin to make fiberglass insulation. In another application the curable aqueous starch binder composition may be mixed into a formaldehyde based resin to make fiberglass roof shingles.
D04H 1/587 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes à partir de voiles ou couches composés de fibres ne possédant pas des propriétés cohésives réelles ou potentielles par application, incorporation ou activation de liages chimiques ou thermoplastiques, p. ex. adhésifs caractérisé par les agents de liage utilisés
C08L 97/02 - Matériau lignocellulosique, p. ex. bois, paille ou bagasse
C08J 5/24 - Imprégnation de matériaux avec des prépolymères pouvant être polymérisés en place, p. ex. fabrication des "prepregs"
C09J 161/24 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des composés contenant de l'hydrogène lié à l'azote d'aldéhydes avec des composés acycliques ou carbocycliques avec l'urée ou la thiourée
C08L 61/24 - Polymères de condensation obtenus uniquement à partir d'aldéhydes ou de cétones avec des composés contenant de l'hydrogène lié à l'azote d'aldéhydes avec des composés acycliques ou carbocycliques avec l'urée ou la thiourée
B29C 39/00 - Moulage par coulée, c.-à-d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulageAppareils à cet effet
C03B 37/04 - Fabrication de fibres ou de filaments de verre par emploi de la force centrifuge
A curable aqueous binder has two primary components. The first component is a bio-based material or mixture of bio-based materials such as starch or polyvinyl alcohol. The second component is one or more compounds selected from the group of urea, polyurea and substituted urea. The first and second components make up most (i.e. 50% or more) of all solids in the binder. The dry weight of the second component is preferably 25% or more of the dry weight of the first component. The solids content of the binder is preferably between 6 wt% and 20 wt%.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
5.
Use of biobased sugar monomers in vinyl copolymers as latex binders and compositions based thereon
The present invention provides the novel and nonobvious discovery that sugar macromers can be effectively used to provide a new generation of renewable comonomers for bio-synthetic hybrid paper binder systems having a controlled hydrophilic-hydrophobic balance for improved water retention and film forming properties, on machine runnability, offset printability, biodegradability, enhanced recyclability, and other performance attributes.
D21H 19/20 - Couches sans pigments appliquées sous une forme autre que la solution aqueuse définie dans le groupe comprenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
D21H 19/56 - Composés organiques macromoléculaires ou leurs oligomères obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A delivery device for a active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders, such as cancer. The delivery device survives for a period of time in the body sufficient to allow for transport and uptake of the delivery device into targeted cells. The degree of crosslinking can provide a desired release profile of the active agent at, near or inside the target cells. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water.
A61K 9/00 - Préparations médicinales caractérisées par un aspect particulier
C08B 31/00 - Préparation des dérivés chimiques de l'amidon
A01N 25/00 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'applicationSubstances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles
B32B 5/16 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par le fait qu'une des couches est formée de particules, p. ex. de copeaux, de fibres hachées, de poudre
In a process for producing a biopolymer nanoparticles, biopolymer feedstock and a plasticizer are fed to a feed zone of an extruder and the biopolymer feedstock is processed using shear forces. A crosslinking agent is added to the extruder downstream of the feed zone. The process has a production rate of at least 1.0 metric tons per hour. The feedstock and the plasticizer are preferably added separately to the feed zone. The extruder may have single flight elements in the feed zone. The temperatures in the intermediate section of the extruder are preferably kept above 100 C. The screw configuration may include two or more steam seal sections. Shear forces in a first section of the extruder may be greater than shear forces in an adjacent downstream section of the first section. In a post reaction section, water may be added to improve die performance.
B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
B29C 47/10 - Alimentation en matière à mouler de l'extrudeuse
B29K 105/00 - Présentation, forme ou état de la matière moulée
B29B 9/12 - Fabrication de granulés caractérisés par la structure ou la composition
8.
A CURABLE SHEARED OR EXTRUDED, CROSS LINKED STARCH NANOPARTICLE LATEX BINDER FOR USE WITH MINERAL, NATURAL ORGANIC OR SYNTHETIC FIBRE PRODUCTS AND NON-WOVEN MATS
A curable aqueous binder composition comprising sheared or extruded cross linked starch particles and a crosslinking agent for use in the formation of composite materials such as mineral, natural organic or synthetic fibre products including mineral fibre insulation, non-woven mats, fibreglass insulation and related glass fibre products as well as wood based products and construction materials. In one application the curable aqueous starch binder composition may be blended with a second non-formaldehyde resin to make fibreglass insulation. In another application the curable aqueous starch binder composition may be mixed into a formaldehyde based resin to make fibreglass roof shingles.
A delivery device for an active agent comprises nanoparticles based on a biopolymer such as starch is disclosed. The device may be in the form of an aptamer-biopolymer-active agent conjugat, where the aptamer targets the device for the treatment of specific disorders. The nanoparticles may be made by applying a high shear force in the presence of a crosslinker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked nydrogel particles in water. The biopolymer may be functionalized. The aptamer may be conjugated directly to the cross-linked biopolymers. The active agent may be a drug useful for the treatment of cancer. The delivery device survives for a period of time in the body sufficient to allow for the sustained release of a drug and for the transportation and uptake of the conjugate into targeted cells.
A61K 9/00 - Préparations médicinales caractérisées par un aspect particulier
B82B 1/00 - Nanostructures formées par manipulation d’atomes ou de molécules, ou d’ensembles limités d’atomes ou de molécules un à un comme des unités individuelles
10.
USE OF BIOBASED SUGAR MONOMERS IN VINYL COPOLYMERS AS LATEX BINDERS AND COMPOSITIONS BASED THEREON
The present invention provides the novel and nonobvious discovery that sugar macromers can be effectively used to provide a new generation of renewable comonomers for bio-synthetic hybrid paper binder systems having a controlled hydrophilic-hydrophobic balance for improved water retention and film forming properties, on machine runnability, offset printability, biodegradability, enhanced recyclability, and other performance attributes.
D21H 19/56 - Composés organiques macromoléculaires ou leurs oligomères obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
C08F 251/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polysaccharides ou leurs dérivés
11.
METHODS OF USING BIOBASED LATEX BINDERS FOR IMPROVED PRINTING PERFORMANCE
The invention therefore provides a method of improving print performance in a paper product comprising applying a coating composition comprising (i) a pigment and (ii) a starch dispersion of discrete crosslinked native starch particles in an aqueous liquid, wherein the particle size of the starch particles in the starch dispersion ranges from about 40 nm to about 400μm, to the paper product, wherein the print performance of the paper product is improved. In one embodiment, the coating composition comprises a solids content of from 5 to about 75% weight and comprises (i) about 100 parts by weight of pigment, and (ii) about 1 to about 300 parts by weight of starch, all based on dry weight.
A process for producing a biopolymer nanoparticles product is disclosed. In this process, biopolymer feedstock and a plasticizer are fed to a feed zone of an extruder having a screw configuration in which the feedstock is process using shear forces in the extruder, and a crosslinking agent is added to the extruder downstream of the feed zone. The biopolymer feedstock and plasticizer are preferably added separately to the feed zone. The screw configuration may include two or more steam seal sections. Shear forces in a first section of the extruder may be greater than shear forces in an adjacent second section of the extruder downstream of the first section. In a post reaction section located after a point in which the crosslinking reaction has been completed, water may be added to improve die performance.
B29B 9/08 - Fabrication de granulés par agglomération de particules plus petites
B29B 9/06 - Fabrication de granulés par division de matière préformée sous forme de filaments, p. ex. combinée avec l'extrusion
B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
B29C 47/10 - Alimentation en matière à mouler de l'extrudeuse
B29K 105/00 - Présentation, forme ou état de la matière moulée
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
02 - Couleurs, vernis, laques
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Chemicals for use in the manufacture of paper and paper board Coating compounds for use in the paper and paper board industries Adhesives and sealants for use in the paper and paper board industries
