Patent classifications
C09D103/02
BINDER COMPOSITIONS WITH POLYVALENT PHOSPHORUS CROSSLINKING AGENTS
An fibrous insulation product is provided that includes a binder comprising a polyol and a phosphorus crosslinking agent derived from a phosphonic or phosphoric acid, salt, ester or anhydride to form crosslinked phosphodiester linkages. The polyol is polyvalent, but may be monomeric or preferably polymeric; and may be synthetic or natural in origin. Carbohydrate polysaccharides are exemplary polyols, including water-soluble polysaccharides such as dextrin, maltodextrin, starch, modified starch, etc. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In exemplary embodiments, the binder may also include a catalyst, a coupling agent, a process aid, and other additives. The environmentally friendly, formaldehyde-free binder may be used in the formation of residential and commercial insulation materials and non-woven chopped strand mats. A method of making fibrous products is also provided.
BINDER COMPOSITIONS WITH POLYVALENT PHOSPHORUS CROSSLINKING AGENTS
An fibrous insulation product is provided that includes a binder comprising a polyol and a phosphorus crosslinking agent derived from a phosphonic or phosphoric acid, salt, ester or anhydride to form crosslinked phosphodiester linkages. The polyol is polyvalent, but may be monomeric or preferably polymeric; and may be synthetic or natural in origin. Carbohydrate polysaccharides are exemplary polyols, including water-soluble polysaccharides such as dextrin, maltodextrin, starch, modified starch, etc. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In exemplary embodiments, the binder may also include a catalyst, a coupling agent, a process aid, and other additives. The environmentally friendly, formaldehyde-free binder may be used in the formation of residential and commercial insulation materials and non-woven chopped strand mats. A method of making fibrous products is also provided.
BINDER COMPOSITIONS WITH POLYVALENT PHOSPHORUS CROSSLINKING AGENTS
An fibrous insulation product is provided that includes a binder comprising a polyol and a phosphorus crosslinking agent derived from a phosphonic or phosphoric acid, salt, ester or anhydride to form crosslinked phosphodiester linkages. The polyol is polyvalent, but may be monomeric or preferably polymeric; and may be synthetic or natural in origin. Carbohydrate polysaccharides are exemplary polyols, including water-soluble polysaccharides such as dextrin, maltodextrin, starch, modified starch, etc. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In exemplary embodiments, the binder may also include a catalyst, a coupling agent, a process aid, and other additives. The environmentally friendly, formaldehyde-free binder may be used in the formation of residential and commercial insulation materials and non-woven chopped strand mats. A method of making fibrous products is also provided.
BIODEGRADABLE OMNIPHOBIC AND HIGH-BARRIER COATINGS, RELATED ARTICLES, AND RELATED METHODS
The disclosure relates to omniphobic coatings, related articles including such coatings, and related method for forming such coatings or articles, for example biobased and/or biodegradable omniphobic coatings with high barrier properties. The omniphobic coating includes an oleophobic and hydrophilic first layer, and a hydrophobic and optionally oleophilic second layer adjacent to the first layer. A corresponding omniphobic coated article can include the omniphobic coating on a substrate such as a porous cellulosic or paper substrate, for example to provide a water- and oil/fat/grease-resistant coating for a paper-based product. The first layer of the omniphobic coating is adjacent to the substrate and the second layer is adjacent to the first layer at a position further from the substrate than the first layer. The omniphobic coating can be applied to a substrate in a layer-by-layer process, and the coated article can be recycled by extraction to remove the coating and recover the substrate material, for example in a re-pulping process.
BIODEGRADABLE OMNIPHOBIC AND HIGH-BARRIER COATINGS, RELATED ARTICLES, AND RELATED METHODS
The disclosure relates to omniphobic coatings, related articles including such coatings, and related method for forming such coatings or articles, for example biobased and/or biodegradable omniphobic coatings with high barrier properties. The omniphobic coating includes an oleophobic and hydrophilic first layer, and a hydrophobic and optionally oleophilic second layer adjacent to the first layer. A corresponding omniphobic coated article can include the omniphobic coating on a substrate such as a porous cellulosic or paper substrate, for example to provide a water- and oil/fat/grease-resistant coating for a paper-based product. The first layer of the omniphobic coating is adjacent to the substrate and the second layer is adjacent to the first layer at a position further from the substrate than the first layer. The omniphobic coating can be applied to a substrate in a layer-by-layer process, and the coated article can be recycled by extraction to remove the coating and recover the substrate material, for example in a re-pulping process.
Moisture, Grease, and Oil Resistant Coatings for Cellulosic Materials
A coated cellulose-based food or beverage container that is resistant to penetration by oil and grease in the presence of water. The container may be coated with a starch dispersion that includes a starch having an amylose content of 20% by weight to 100% by weight (e.g., 30% by weight to 50% by weight). Methods for producing the coated container include preparing a starch suspension, heating the starch suspension to form a starch dispersion, applying the heated starch dispersion to the container to form a coating, and drying the coating.
Moisture, Grease, and Oil Resistant Coatings for Cellulosic Materials
A coated cellulose-based food or beverage container that is resistant to penetration by oil and grease in the presence of water. The container may be coated with a starch dispersion that includes a starch having an amylose content of 20% by weight to 100% by weight (e.g., 30% by weight to 50% by weight). Methods for producing the coated container include preparing a starch suspension, heating the starch suspension to form a starch dispersion, applying the heated starch dispersion to the container to form a coating, and drying the coating.
OIL-RESISTANT AGENT FOR PAPER
An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.
OIL-RESISTANT AGENT FOR PAPER
An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.
BINDER COMPOSITION BASED ON BIOSOURCED INGREDIENTS AND USE THEREOF FOR FORMING NON-WOVEN GLASS-FIBRE WEBS
The invention relates to an aqueous binder composition containing, relative to the total dry weight of the binder composition, 10 to 40% by weight of a hydrogenated sugar, 25 to 55% by weight of citric acid, 25 to 50% by weight of a polysaccharide, and 1 to 10%, preferably 2 to 6%, by weight, of sodium hypophosphite or hypophosphorous acid. The polysaccharide is dissolved in the aqueous binder composition and chosen from functionalized starches and dextrins having a weight-average molar mass of between 150,000 and 2,000,000 and a solubility in water of between 50 and 85%. The invention also relates to a method for manufacturing non-woven webs based on mineral or organic fibers using such a composition and the non-woven webs thus obtained.