A tray composite comprises a polymeric based liner including an exterior surface layer, an interior surface layer, and a fiber based component removably affixed to the interior surface layer of the polymeric based liner. A release agent is located between the polymeric based liner and the fiber based component. The polymeric based liner and the fiber based component are manually separable after they have been removably affixed together.

Methods and apparatus are disclosed for bundling of single-use plastics into reusable material. An example method for forming a sheet of insulation includes arranging a plurality of single-use plastic straws to be parallel to each other in a side-by-side manner. At least some of the plurality of single-use plastic straws are arranged to contact adjacent ones of the plurality of single-use plastic straws. The example method also includes applying fastening material to the plurality of single-use plastic straws to couple the plurality of single-use plastic straws together.

A first layer that is a peelable film includes a bonding sublayer and a sealing sublayer. The bonding sublayer includes a non-neutralized ethylene acid copolymer, The scaling sublayer includes a first polyethylene and an ethylene acid copolymer or blends thereof. The first layer is adapted to withstand exposure to sterilization processes and the first layer can be essentially free of blistering.

The present invention relates to a paper or paperboard comprising a polymeric coating, said polymeric coating comprising: a first coating layer attached to the paper or paperboard surface, said first coating layer comprising a blend of: a high density polyethylene (HDPE), medium density polyethylene (MDPE) or linear low density polyethylene (LLDPE), or a mixture thereof, and a low density polyethylene (LDPE); and a second coating layer attached to the first coating layer, said second coating layer consisting essentially of a low density polyethylene (LDPE); wherein the first and second coating layers have a combined grammage of less than 12 g/m.sup.2. The present invention relates to a method for manufacturing a polyethylene (PE) coated paper or paperboard substrate.

It is related to a packaging tube in which a laminate body uses a multilayer barrier film having an ethylene copolymer and a vinyl alcohol (EVOH) layer, and this tube can be used for contents such as cosmetics, hair-dye products, toothpastes, pharmaceutical creams, and so on. It is to provide a bounce-back property, preservation of contents and a flavor barrier property to a tube by forming a tube body from a laminate comprising an inner layer of a polyolefin resin, an intermediate layer of a gas-barrier resin and an outer layer of a polyolefin resin.

According to some aspects, a container is provided for use in an additive fabrication device configured to fabricate parts by curing a liquid photopolymer to form layers of cured photopolymer. The container may comprise a laminated multi-material layer having an elastic first layer that aids in separation of cured photopolymer from the container in addition to a barrier layer on an upper surface that protects the first layer from exposure to substances in the liquid photopolymer that may not be compatible with the material of the first layer.

A multi-layer sheet includes an insulative cellular non-aromatic polymeric material, a film, and a polymeric-lamination layer. The insulative cellular non-aromatic polymeric material may be formed from a polymeric formulation comprising a base resin blend and a physical nucleating agent.

An example disposable food service tray that can withstand high heat is disclosed. The disposable food tray includes a first layer comprising paper board, and a second layer comprising polyethylene terephthalate (PET) affixed to the first layer, wherein an adhesion between the first layer and the second layer is configured to withstand a temperature of up to 525 degrees Fahrenheit for up to six minutes without blistering.

A biodegradable, thermally insulated mailer and cooler, and method of making them, are disclosed. The thermally insulated packaging material are made from laminated starch foam and bio-plastic film. The lamination can be performed by heat bonding, without the use of an adhesive bonding agent, to produce biodegradable packaging materials that can pass ASTM and other certifications for home compostability and marine environment safety.

The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.