Slip Agent Technologies for Friction Control

Packaging film for bags and pouches that has improved anti-blocking properties to prevent sticking and clogging. The film has one surface with a roughness of 1-10 microns due to blending iron powder into the propylene resin. This roughness reduces friction and prevents sticking compared to smooth surfaces. The iron powder also absorbs oxygen to improve barrier properties. The rough surface can be formed by blending iron powder into the resin at 1-40% mass.

Source

Contact lenses packed in a solution to improve initial comfort and reduce dryness during wear. The contact lenses are immersed in a packaging solution containing a specific polymer blend. The solution has a viscosity of 2-8 cP and comprises a poly(2-oxazoline) and an acrylates/C10-30 alkyl acrylate crosspolymer. This solution improves initial comfort upon lens insertion and reduces dryness during wear compared to conventional contact lens storage solutions. The specific polymer blend provides lubricity and reduces friction when the lens moves in the eye.

Source

Packaging material with reduced static electricity that can be manufactured using a gravure printing process. The material has an antistatic coating layer formed on a multilayer film using an antistatic treatment solution mixed with ethanol. The coating is applied by gravure printing and then dried. The antistatic coating contains polyurethane resin, conductive polymer, surfactant, crosslinker, and fluororesin. Ethanol improves coating properties, speed, and safety. The antistatic coating reduces friction static electricity to prevent contents from sticking to the packaging.

Source

Multilayer film with excellent gas barrier properties, appearance, and recyclability, particularly for wide width films like 500 mm. The film has an outermost layer made of a specific resin composition containing EVOH with 20-50 mol% ethylene content and 90 mol% saponification, and 350-2000 ppm of polyvalent metal ions like Mg, Ca, Zn, Co, Mn. This improves slipperiness between surfaces during extrusion to reduce defects. The film also has inner layers of adhesive and polyolefin resins. The composition allows wide width films with good appearance, gas barrier, and recyclability.

Source

Base paper for metallized paper that provides metallized paper with excellent printability and processability in automatic packaging. The base paper has a resin layer on one side and a pigment coating layer on the other side. The pigment content in the coating is 50-85% by mass. The side with the pigment coating has an Oken smoothness of 300 seconds or more and a dynamic friction coefficient against stainless steel of 0.35 or less. This improves printability and reduces friction when metallizing the paper. The coating layer properties remain after metallization.

Source

Packaging film with improved anti-blocking properties for preventing sticking and clogging of filled pouches. The film has at least one surface with a roughness in the range of 1.0 to 10 μm. This roughness is achieved by blending iron powder into the propylene-based resin layer forming that surface. The iron powder not only improves anti-blocking but also provides oxygen barrier properties. Blending iron powder into the resin layer forms a rough surface with a small friction coefficient that prevents sticking.

Source

Packaging material, tube containers, and tube containers with caps that are less likely to be scratched when rubbed against each other during transportation. The packaging material has a laminate structure with specific sealant layers containing wear-resistant additives. The outermost sealant layer has a high concentration of wear additives to improve resistance. The innermost sealant layer has wear additives to improve slipperiness. This prevents scratches on the outer surface of the tube containers when stacked.

Source

A tube packaging laminate for collapsible and foldable tube containers that has low friction on both inner and outer surfaces. The laminate has two main polymer layer assemblies: one with a polyolefin film, metal layer, and barrier layer; and the other with an extruded polymer layer. The key is adjusting the cooling conditions during production to modify the friction properties of the exposed inner and outer surfaces. This allows easier rolling and machining of the laminate into tube shapes.

Source

Laminate for paper pouches with a surface resin layer containing protruding particles to prevent slipping during manufacturing and stacking. The laminate has a paper base layer, a sealant layer, and a surface resin layer with particles. The particles protrude from the surface. This prevents paper pouches made from the laminate from sliding against each other during manufacturing and stacking, reducing process issues.

Source

Sliding film, laminate, and packaging container with improved sliding properties against deposits while maintaining transparency. The sliding film is made by co-hydrolyzing or condensing an alkyltrialkoxysilane with 1-14 carbon alkyl group and tetraalkoxysilane. The sliding film has excellent sliding properties against deposits like oil adhesion in packaging containers. The sliding film can be applied to laminates and packaging containers by coating it onto a substrate and allowing it to react and cure. The coating process involves dissolving the silanes in a solvent, applying it to the substrate, and removing the solvent.

Source

Bottle cap composition and bottle cap with improved toughness and sealing ability by using a soft polyester material in the cap composition. The composition includes PET, a soft polyester like TPEE or PBAT, a lubricant, and an antioxidant. The soft polyester improves impact strength, reduces hardness, and enhances sealability compared to PET-only caps. The lubricant improves flowability and mold release. The antioxidant improves heat resistance and processability.

Source

Reducing pouch sealing defects in retort pouch foods by coating the tip end surface of the piston with diamond-like carbon (DLC) in the pouch filling nozzle. The DLC coating reduces wear, dripping, and biting of ingredients during filling, preventing sealing failures. The DLC coating on the piston tip suppresses adhesion of filling contents to the piston, reducing dripping and separating of contents from the pouch. The coating also prevents ingredients from getting caught in the gap between piston and cylinder.

Source

Packaging container for viscous substances like grease, ointments, toothpaste, etc. that improves discharge and prevents sticking. The container has a bottle with a convex bottom shape and a liquid layer on the inner surface. The liquid layer is formed by a thin coating of lubricant on the inner wall. This layer prevents the viscous substance from sticking to the wall and allows easier discharge. The lubricant coverage is 0.1-20g/m2. The bottle shape has a neck diameter 40-80% of the max body diameter. An air pocket is formed in the filled container due to the viscosity of the substance. This pocket helps discharge by allowing air to flow in when tilted. The lubricant layer prevents the air pocket from collapsing and sticking the substance to the bottom.

Source

Flexible, heat-sealable plastic packaging bags with improved anti-slip properties for stacking without sticking. The bags have a rough, non-slip surface on the outside to prevent sliding when stacked. The roughness is achieved by dispersing separate, low-melt-flow-rate thermoplastic protrusions on the bag's exterior. The protrusions are formed by attaching particles to the wall during bag manufacture. The low melt flow rate prevents deformation during heat sealing. The particles have a height of 50-10000 microns.

Source

Packaging materials with improved release properties to prevent sticking of products like ketchup, yogurt, and toothpaste. The packaging is made by adding a disengagement component to the polymer matrix. This component improves the release properties of the packaging material, making it easier to empty sticky products without residue. The disengagement component can be a masterbatch of a thermoplastic carrier polymer with additives like glycerol esters and surfactants. The component is mixed into the packaging material during production.

Source

Polypropylene-based composite film for packaging applications like batteries and retort food with improved heat-sealing, low-temperature impact resistance, bending whitening resistance, and slipperiness compared to conventional polypropylene films. The composite film has two layers: an inner layer of a propylene-based random copolymer with specific melting point and melt flow rate, and an outer layer of propylene ethylene block copolymer blended with low-density polyethylene. The inner copolymer contains 200-2000 ppm of fatty acid amide lubricant, while the outer copolymer contains 500-5000 ppm. This balanced lubricant content allows high heat-seal strength, low temperature shock resistance, and slipperiness after aging. The composite film can be laminated and heat-sealed

Source

High performance polypropylene-based composite films for packaging applications like batteries and retort food. The films have balanced properties like heat sealability, low temperature impact resistance, slipperiness, and bending whitening resistance. The films have a layered structure with a propylene-ethylene random copolymer layer (A) and a propylene-ethylene block copolymer layer (B) containing a low-density polyethylene resin (b). The films also have a fatty acid amide lubricant in the A layer and the B layer contains a fatty acid amide lubricant at 500-5000 ppm. The layered structure provides balanced properties like heat sealability, low temperature impact resistance, slipperiness, and bending whitening resistance.

Source

Packaging material for surfactant-containing products like cosmetics that has a long-lasting slippery and anti-adhesive surface. The packaging material has a thin layer of silicone oil on a solid layer made of a non-aromatic silicone polymer. The silicone polymer prevents the silicone oil from being scraped off by surfactants in the product. The silicone polymer is selected from silicone resins, modified olefin resins, modified polysaccharides, and modified acrylic resins. The roughness of the solid layer is less than 0.3 μm. The packaging material provides stable slipperiness and anti-adhesion for surfactant-containing products like shampoo and conditioner.

Source

Pharmaceutical packaging materials with improved inertness, extractability, leachability, and lubricity compared to conventional packaging materials. The materials have a thin film coating on the substrate surface. The coating is composed of two layers: a hexamethyldisiloxane (HMDS) layer followed by a silane layer. The HMDS layer provides inertness, barrier properties, and reduces extractables. The silane layer improves lubricity. This two-layer coating on substrates like vials/syringes improves drug inertness, reduces leachables, and provides high lubricity compared to uncoated packaging.

Source

Expandable polymeric compositions for foam packaging with reduced abrasiveness and improved impact resistance compared to conventional polystyrene foams. The compositions contain expandable vinyl aromatic polymers and/or copolymers along with a styrene-ethylene-butylene block copolymer. The vinyl aromatic polymer has a weight average molecular weight between 130-250 kDa and the vinyl aromatic copolymer content is 10-30% by weight. The compositions have improved expansion rates, stability of blowing agents, and storage properties compared to known expandable foams. The compositions can be used to make foam packaging with reduced abrasiveness and improved impact resistance compared to conventional polystyrene foams.

Source