C08K2003/162

NANO-CELLULOSE COMPOSITIONS, COATINGS, AND USES THEREOF

Disclosed herein are embodiments of a composition comprising at least one cellulose material (such as a cellulose nanomaterial) and an optional inorganic salt component. Some embodiments of the composition can further comprise additional components, with some embodiments further comprising a non-starch polysaccharide (e.g., methyl cellulose carboxymethyl cellulose or other cellulose derivative, chitosan, or the like), a surfactant, a plasticizer, an antimicrobial component, or any combination thereof. The disclosed compositions are useful for forming edible coatings/films on plants, plant parts, and other objects. The disclosed compositions and coatings/films made using the compositions are effective at protecting fresh and processed produce and other substances and products, from various different types of food processing damage (and the deleterious effects associated therewith).

Pre-treatments for packaging print media

A pre-treatment coating composition includes evaporable liquid vehicle and a pre-treatment coating matrix, including from 30 wt % to 70 wt % multivalent organic salt, from 5 wt % to 30 wt % dispersed polyurethane binder having a weight average molecular weight from 30,000 Mw to 100,000 Mw, from 0.5 wt % to 8 wt % of a high molecular weight polyvinyl alcohol binder, and from 10 wt % to 30 wt % of a low molecular weight polyvinyl alcohol binder. The low molecular weight polyvinyl alcohol binder and the high molecular weight polyvinyl alcohol binder are present in the pre-treatment coating matrix at a 3:1 to 15:1 weight ratio, and weight percentages are based on dry weight of the pre-treatment coating matrix.

ENCAPSULATION BY CROSS-LINKING OF ANIONIC POLYMERS BY PH INDUCED DISSOCIATION OF CATION-CHELATE COMPLEXES

Microencapsulation methods are provided using encapsulant, fiber or film forming compositions of a cross-linkable anionic polymer, a multivalent cation salt, a chelating agent, and a volatile base. During the formation of this composition, the generally acidic chelating agent is titrated with a volatile base to an elevated pH to improve ion-binding capability. Multivalent cations are sequestered in cation-chelate complexes. Cross-linkable polymers in this solution will remain freely dissolved until some disruption of equilibrium induces the release of the free multivalent cations from the cation-chelate complex. Vaporization of the volatile base drops the pH of the solution causing the cation-chelate complexes to dissociate and liberate multivalent cations that associate with the anionic polymer to form a cross-linked matrix. During spray-drying, the formation of a wet particle, polymer cross-linking, and particle drying occur nearly simultaneously.

MECHANICALLY ALLOYED METALLIC THERMAL SPRAY COATING MATERIAL AND THERMAL SPRAY COATING METHOD UTILIZING THE SAME
20220025289 · 2022-01-27 · ·

Thermal spray coating obtained from a thermal spray powder material containing at least one of Aluminum-containing particles, Magnesium-containing particles, and Titanium-containing particles mechanically alloyed to a transition metal. The coating includes Aluminum, Magnesium, or Titanium alloy portions alloyed to the transition metal. The thermal spray powder is obtained of Aluminum, Magnesium, or Titanium containing particles mechanically alloyed to a transition metal.

AQUEOUS PRIMER COMPOSITION AND INK SET, AND PRINTED MATTER
20210348011 · 2021-11-11 ·

An aqueous primer composition includes a water-soluble multivalent metal salt, a polyester-based polyurethane emulsion, and water. A set includes the aqueous primer composition and an inkjet recording ink composition. A printed matter obtained by using the set includes a base material layer, a primer layer containing the water-soluble multivalent metal salt and the polyester-based polyurethane, and a printing layer. The aqueous primer can offer excellent preservation stability, and can allow for formation of a printing layer having high adhesion, capable of forming high-quality images with little bleeding/mottled appearance when printing images, text, etc., to form a printing layer on a plastic film or other nonabsorbent medium using inkjet recording ink compositions, offering excellent water resistance and lamination suitability.

ICEPHOBIC COATING COMPOSITION
20220002560 · 2022-01-06 ·

An icephobic coating composition forms a coating layer that melts ice and snow upon contract and remains durable after several exposures to winter storms. The icephobic coating composition includes about 2.5% to about 12.5% by weight of latex polymer solids; about 30% to about 70% by weight of an inorganic halide salt; about 15% to about 50% by weight water; and about 1% to about 15% by weight of an organic co-solvent selected from glycerin, glycols, and glycol ethers. An alternative icephobic coating composition includes about 1% to about 20% by weight of a solution polymer instead of a latex polymer, and about 10% to about 40% by weight of a VOC-exempt organic solvent instead of the foregoing water and co-solvent.

Adhesive material with improved bonding performance to a wet substrate and methods for preparing the same

The present invention provides an adhesive material with improved bonding performance to a wet substrate, the adhesive material includes a first component selected from a polysiloxane-based adhesive, or a polyurethane-based adhesive; and a second component of a catechol-containing polymeric additive which includes a reaction product of polyvinylpyrrolidone with 3′,4′-dihydroxy-2-chloroacetophenone, and the weight ratio of polyvinylpyrrolidone to 3′,4′-dihydroxy-2-chloroacetophenone ranging from 10:1 to 1:1. The adhesive material being a mixture of at least the first component and the second component, where the second component is approximately 1 wt. % to 10 wt. % of the first component.

METHOD FOR PREPARING SILK FIBROIN FILM BY WET FILM COATING
20230151168 · 2023-05-18 ·

Provided is a method for preparing silk fibroin film by wet film coating, including: (1) scrape coating a regenerative silk fibroin wet films on selected substrates, drying, to obtain regenerated silk fibroin films after drying; (2) Putting the dried silk fibroin film in water, so that the silk fibroin film can be detached peeled from the substrate after subsequent drying; and (3) drying Exfoliate the further dried silk fibroin film and peeling from the substrate. It is the first time to realize the preparation of free-standing fibroin film by wet film coating. The silk fibroin film has properties of ultra-thin, flexible, transparent, permeable, excellent biocompatibility, etc., thus being suitable for applications in flexible electronics, such as epidermal electronics. In addition, the method is not only suitable for industrial batch production of the fibroin film, but also matched with the existing film processing technologies such as roll-to-roll and nano-imprint.

SOLUTION BASED POST-PROCESSING METHODS FOR MYCOLOGICAL BIOPOLYMER MATERIAL AND MYCOLOGICAL PRODUCT MADE THEREBY

A mycological biopolymer material is subjected to treatment in one or more solutions that work to enhance and/or retain the inherent material properties of the material. In one embodiment, the solution is an organic solution; in another embodiment, the solution is an organic solvent with a salt; in another embodiment, the solution is an organic solvent phenol and/or polyphenol; and in another embodiment, a series of such solutions is used.

EMULSION COMPOSITION COMPRISING JELLY COAT GEL PARTICLE

The specification relates to an emulsion composition of a formulation that can stably comprise an active substance through a biomimetic structure and can effectively deliver the active substance into the skin. The disclosure uses biocompatible natural vegetable proteins and macromolecules to mimic plant seeds with components and form a morphologically simulated structure of stem cells, so that various efficacious substances can be stably comprised in a high content in the formulation, and high skin absorbability of active substances can be provided. Accordingly, the disclosure can not only solve the safety issues caused by the use of conventional synthetic chemicals, but also enhance the effect of a cosmetic composition or pharmaceutical composition comprising an active substance by stabilizing the active substance in a formulation and effectively absorbing the active substance into the skin.