Chemical Premixing for Package Coatings
104 patents in this list
Updated:
Surface coating preparation demands precise control over multiple physical and chemical parameters. Current industrial coating processes face challenges with adhesion strength, uniformity across substrates, and maintaining consistent film thickness - typically ranging from 10-200 microns depending on application requirements. Environmental conditions during preparation, including temperature and humidity, significantly impact coating quality and curing times.
The fundamental challenge lies in balancing coating durability and functional properties while maintaining process efficiency and environmental sustainability.
This page brings together solutions from recent research—including modified chitosan-PVA compositions for enhanced water resistance, emulsion-based preparations using natural stabilizers, biodegradable nanoparticle-enhanced coatings, and multi-functional primer systems. These and other approaches provide practical guidance for optimizing coating preparation methods across different substrate materials and end-use requirements.
1. Biopesticide Composition with Essential Oil Emulsion from Lemongrass, Citronella, Ginger, and Basil
M KASSI KOFFI FERNAND JEAN-MARTIAL, M YAO KOUADIO JACQUES EDOUARD, M KOUAME KOFFI GASTON, 2024
A natural biopesticide composition for preserving agricultural products like cereals by impregnating packaging and disinfecting storage sites. The biopesticide is an emulsion of essential oils extracted from plants like lemongrass, citronella, ginger, and basil. It contains a mix of compounds like alpha-zingiberene, sesquiphellandrene, thymol, citral, and ocimene. The essential oils are extracted using steam distillation. The biopesticide can be applied at 1-2.5 mL/L to containers and storage sites to control insects and fungal diseases without harming crops or consumers.
2. Natural Spray Solution Comprising Chitosan, Lactic Acid, Glycerol, Vitamin C, and Vitamin D in Deionized Water
محسن شجاعي, MOHSEN SHOJAEI, محسن شجاعی, 2024
A natural spray solution to increase the shelf life of chicken meat without using chemicals or preservatives. The solution contains chitosan, lactic acid, glycerol, vitamin C, and vitamin D dissolved in deionized water. The spray solution is applied to chicken meat to create a barrier that prevents microbial growth and spoilage. The solution is prepared by weighing and mixing the ingredients, homogenizing, filtering, ultrasonicating, sterilizing, and packaging.
3. Method for Emulsifying Palm Wax with Chitosan for Single-Layer Coating on Food Packaging Papers
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY, UNIV ZHEJIANG SIENCE & TECHNOLOGY, 2024
A one-step method to prepare a multifunctional and environmentally friendly coating for waterproof and oil-proof food packaging papers. The coating is made by emulsifying palm wax using chitosan as the emulsifier, stabilizer, and antibacterial agent in a weak acid solution. The emulsion is then coated onto the paper and dried to create a single-layer coating that provides both waterproof and oil-proof properties. This avoids the need for double-layer coatings and reduces costs and production difficulties compared to conventional methods.
4. Adhesive Paper Products with Enhanced Bond via Chemical Interaction Coating
VAN BOOM JOEL, JOEL VAN BOOM, KRAHL WILLIAM R, 2024
Transforming the bond of removable or repositionable adhesive printable paper products into ones with the performance of semi-permanent or permanent adhesives, by bringing the paper product into contact with a surface having chemical functionality that interacts with the pressure sensitive adhesive to improve its bond. This allows converting repositionable labels into ones with higher adhesion for better attachment to rough surfaces like bags and containers. The transformation involves applying a coating with chemical functionality that interacts with the adhesive, like hydrophilic resins, to the substrate.
5. Biodegradable Coating Comprising Octadecyltrichlorosilane and Silica Nanoparticles for Paperboard Water Repellency
INDIAN INSTITUTE OF TECHNOLOGY (INDIAN SCHOOL OF MINES) DHANBAD, 2024
Biodegradable water-repellent coating for paperboard packaging materials that can make paperboard materials repel water like superhydrophobic surfaces without altering biodegradability. The coating is prepared by mixing octadecyltrichlorosilane (OTS) and silica nanoparticles in a solvent. The coating is applied to paperboard packaging materials by spraying or immersion. This coating improves water repellency, self-cleaning, stain resistance, and durability compared to existing coatings. The coating process is simple, eco-friendly, and requires no pre/post-treatment.
6. Noodle Skin Composition with Gum Arabic, Gum Ghatti, or Soybean Polysaccharides for Structural Integrity and Anti-Adhesion
SAN-EI GEN FFI INC, 三栄源エフ・エフ・アイ株式会社, 2024
Composition to apply to the skin of noodle skin foods like gyoza, spring rolls, etc. to prevent sticking, breaking, hardening, and quality deterioration during cooking and storage. The composition contains gum arabic, gum ghatti, or soybean polysaccharides. Applying these gums to the noodle skin prevents sticking to other skin pieces, utensils, and prevents breaking during cooking. It also prevents skin hardening over time. The gums can be applied as a coating, dusting, or mixed into the skin dough.
7. Primer Composition and Ink Set with Acrylic Emulsion and N-Oleoyl Sarcosine for Inkjet Printing on Flexible Packaging
SAKATA INX CORP, 2024
Primer composition, ink set, surface-printed matter, and inkjet printing method for flexible packaging that provides excellent printing properties and resistance after inkjet printing. The primer contains an acrylic emulsion with specific polymer, N-oleoyl sarcosine, hydrazine compound, and wax. The ink set has an aqueous inkjet ink with pigment, resin, and wax. This composition and ink set enable superior solid uniformity, bleeding resistance, abrasion resistance, alcohol resistance, and heat resistance of the coating film after inkjet printing on flexible packaging materials.
8. Packaging Material with Coating Comprising Antimicrobial Agents and Low Adhesion Properties
SOREMARTEC SA, 2024
Packaging material with improved antimicrobial properties for reducing the risk of disease transmission through contact with the packaging surface. The packaging has a coating that combines antimicrobial agents with low adhesion properties to prevent microbial adhesion and infection. The coating is applied to a substrate like injection molded or extruded packaging. The low adhesion properties help prevent debris and droplets from sticking to the surface, while the antimicrobial agents inhibit microbial growth. The coating may contain antimicrobial agents like silver ions, antimicrobial polymers, or antimicrobial monomers. The coating weight and application method can vary.
9. Method for Producing Modified Chitosan-PVA Coating Solution and Coated Packaging Material
UNIVERSITY INDUSTRY FOUNDATION YONSEI UNIVERSITY WONJU CAMPUS, UNIV INDUSTRY FOUNDATION YONSEI UNIV WONJU CAMPUS, 연세대학교 원주산학협력단, 2024
A method for producing a coating solution containing modified chitosan and PVA with improved water resistance, durability, and antibacterial properties, and a method for producing a packaging material coated with this modified chitosan-PVA coating. The method involves chemically modifying chitosan to create a modified chitosan solution, then mixing it with PVA solution at a weight ratio of 7:3 to 5:5 to prepare the coating composition. This modified chitosan-PVA coating provides enhanced water resistance, durability, and antibacterial properties compared to PVA alone.
10. Packaging Material Composition with Organic and Inorganic Compounds for Enhanced Detachability
CLARIANT INT LTD, CLARIANT INTERNATIONAL LTD, 瑞士商克萊瑞特國際股份有限公司, 2023
Improving the detachability of packaging materials like plastic bottles, containers, and films for products like ketchup, toothpaste, and lotion to reduce residue adhering to the packaging. The invention involves adding specific organic and inorganic compounds to the packaging material to create a composition that reduces sticking of the product to the inside surfaces. The composition includes components like polyolefins, polystyrene, glycerol, polyglycerol, sorbitol, sorbitan, and layered double hydroxides. The compounds are physically mixed with the packaging material and processed to create the final packaging. This improves the release properties of the packaging for sticky products.
11. Plasma-Assisted Deposition of Fluorine-Free Coatings on Packaging Materials Using Lactams and Alkynes
BASF SE, 2023
Coating packaging materials for chemicals like agrochemicals using a plasma-assisted deposition method without using fluorinated compounds. The coating is applied by depositing a reaction product of a fluorine-free compound like lactams, lactones, acetate, pyrrolidone, or alkynes onto the substrate surface using a plasma. The coating provides barrier properties to prevent chemical transmission without using perfluorinated compounds. This addresses regulatory concerns and allows recycling compared to established coatings using fluorinated polymers. The plasma is generated using microwave radiation and electric discharge. The fluorine-free compound aerosol is introduced into the plasma for deposition.
12. Primer Composition with Glucaric Acid for Enhanced Adhesion and Moisture Resistance on Plastic Films
GOGLIO SPA, 2023
Primer composition for digital inkjet printing on plastic films that provides improved adhesion and moisture resistance compared to traditional primers. The primer contains glucaric acid, a polyhydroxy bicarbonate, as the reactive cationic compound instead of calcium chloride or other inorganic salts. The glucaric acid primer prevents detachment of the primer from the printed substrate due to moisture absorption, providing better adhesion.
13. Detergent Composition with Natural Propolis Extract, Seaweed Polysaccharides, and Quaternary Ammonium Salts
THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION, 가톨릭대학교 산학협력단, CATHOLIC UNIV KOREA IND ACADEMIC COOPERATION FOUNDATION, 2023
Antibacterial and antiviral detergent composition that uses natural ingredients like propolis extract, seaweed polysaccharides, and quaternary ammonium salts to provide effective cleaning and disinfection. The composition also contains citric acid, salt, aroma oils, emulsifiers, thickeners, and biodegradation catalysts. It avoids synthetic chemicals and has applications in detergents, packaging materials, and disinfectants.
14. Concentrated Surface Treatment Composition with Water-Soluble Packaging and Customizable Mixing Components
SWIMC LLC, 2023
A concentrated surface treatment product that can be mixed with water by the end user before application. The concentrated product contains a combination of clay, modified acrylic, defoamer, microbiocide, xanthan gum, polyethylene wax, dye, coalescent, and rheology modifier. It can be packaged in water-soluble packets or as a dry powder, reducing storage and transportation size compared to ready-to-use products. Mixing the concentrated treatment with water allows customization of color and consistency, and prevents separation issues.
15. Water-Soluble Film-Encapsulated Hard Surface Cleaning Concentrate with Glycol Ethers and Nonionic Surfactants
DOW SILICONES CORP, 2023
Hard surface cleaning concentrate package for effectively removing oil, grease, and dirt from hard surfaces using a concentrated formula. The package contains a water-soluble film and a hard surface cleaning concentrate composition inside. The concentrate composition has a specific formulation with ingredients like glycol ethers, nonionic surfactants, tertiary amines, and fragrances. The concentrate is diluted with water to prepare the cleaning solution. The encapsulated concentrate provides concentrated cleaning power in a small package while preventing residue and waste.
16. Concentrated Water-Soluble Surface Treatment Composition with Clay, Modified Acrylic, and Rheology Modifier
SWIMC LLC, 2023
Concentrated water-soluble surface treatment product that can be mixed with water by the user for applying as a stain, dye, coating, etc. The concentrated product contains components like clay, modified acrylic, defoamer, microbiocide, xanthan gum, polyethylene wax, dye, coalescent, and rheology modifier. This allows a lighter, easier to transport and store product compared to traditional surface treatments. The concentrated form reduces packaging size and weight, and prevents component separation during storage.
17. Concentrated Water-Soluble Surface Treatment Composition with Multi-Form Dispersion Capability
SWIMC LLC, 2023
A concentrated water-soluble surface treatment product that can be mixed with water by the end user to apply as a stain, dye, coating, etc. The concentrated product contains components like clay, acrylic, defoamer, microbiocide, xanthan gum, wax, dye, coalescent, and rheology modifier. This allows lighter, easier-to-transport packaging without separation issues compared to traditional ready-to-apply surface treatments. The concentrated product can be provided in forms like powders, gels, liquids, or dissolvable tablets, and mixed with water before application.
18. Surface Printing Primer Composition with Acrylic Resin Emulsion, N-Oleoyl Sarcosine, Hydrazine Compound, and Wax for Flexible Packaging
SAKATA INKS, SAKATA INX CO LTD, サカタインクス株式会社, 2023
Surface printing primer composition for flexible packaging that improves properties like solid uniformity, bleeding resistance, abrasion resistance, alcohol resistance, and heat resistance when inkjet images are printed on top. The primer contains an acrylic resin emulsion with specific solid content and glass transition temperature range, N-oleoyl sarcosine, a hydrazine compound with multiple hydrazine groups, and wax. The primer composition allows excellent inkjet image quality and coating film properties compared to conventional primers. It can be used in conjunction with water-based inkjet inks to create surface printed materials with superior properties like solid uniformity, bleeding resistance, abrasion resistance, alcohol resistance, and heat resistance.
19. Primer Composition with Acrylic Resin Emulsion, N-Oleoyl Sarcosine, Hydrazine Compound, and Wax for Flexible Packaging Printing
SAKATA INX CORP, 2023
Primer composition for printing on flexible packaging materials using inkjet printers that provides improved ink adhesion, blocking resistance, alcohol resistance, and heat resistance. The primer contains an acrylic resin emulsion with a specific glass transition temperature range, N-oleoyl sarcosine, a hydrazine compound, and wax. The acrylic emulsion has 3-40% solids and a Tg of -40 to 30°C. The primer improves inkjet printing performance on flexible packaging when applied before inkjet printing.
20. Primer Composition with Acrylic Resin Emulsion, N-oleoyl Sarcosine, and Multivalent Hydrazine Compound for Flexible Packaging
サカタインクス株式会社, SAKATA INX CORP, 2023
A primer composition for surface printing on flexible packaging that improves durability and heat resistance when used with water-based inkjet inks. The primer contains an acrylic resin emulsion, N-oleoyl sarcosine, and a hydrazine compound with multiple hydrazine groups. The acrylic resin emulsion has a glass transition temperature between -40 to 30°C. The primer composition provides excellent solid uniformity, smudge resistance, abrasion resistance, alcohol resistance, and heat resistance when printed on flexible packaging and then inkjet printed on top of it.
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