Products and methods for producing products which comprise polyethylene and inorganic minerals for a single layer plastic composition.

A film comprising a polymer blend which comprises from 90 to 95 wt % of a low density olefm-based plastomer or elastomer having a density equal to or less than 0.905 g/cc; from 5 to 10 wt % of a high modulus amorphous polymer; wherein a film comprising the polymer blend exhibits an oxygen transmission rate (OTR) of equal to or greater than 10,000 cc/m.sup.2.Math.day is provided. Also provided is a packaging comprising the film, a method of making the film and a method of forming and filling a packaging comprising the film.

A film comprising a polymer blend which comprises from 90 to 95 wt % of a low density olefm-based plastomer or elastomer having a density equal to or less than 0.905 g/cc; from 5 to 10 wt % of a high modulus amorphous polymer; wherein a film comprising the polymer blend exhibits an oxygen transmission rate (OTR) of equal to or greater than 10,000 cc/m.sup.2.Math.day is provided. Also provided is a packaging comprising the film, a method of making the film and a method of forming and filling a packaging comprising the film.

Disclosed is an airtight container having a deformable cover unit or a deformable container unit, which ensures easy maintenance of the cover unit and allows the cover unit to be easily used with a large-capacity fixed container unit, or which includes an expandable accommodating space or an expandable inlet to accommodate various sizes of storage items therein in an airtight manner. The airtight container includes a deformable cover unit for useable with a fixed container unit. Alternatively, the airtight container includes first and second frames pivotably connected to each other so as to be selectively coupled to or come into contact with each other in order to seal a contact or coupling portion therebetween, and a deformable container unit disposed over the frames and configured to provide an accommodating space for a storage item therein. The first and second frames are disposed along the inlet rim of the container unit.

Disclosed is an airtight container having a deformable cover unit or a deformable container unit, which ensures easy maintenance of the cover unit and allows the cover unit to be easily used with a large-capacity fixed container unit, or which includes an expandable accommodating space or an expandable inlet to accommodate various sizes of storage items therein in an airtight manner. The airtight container includes a deformable cover unit for useable with a fixed container unit. Alternatively, the airtight container includes first and second frames pivotably connected to each other so as to be selectively coupled to or come into contact with each other in order to seal a contact or coupling portion therebetween, and a deformable container unit disposed over the frames and configured to provide an accommodating space for a storage item therein. The first and second frames are disposed along the inlet rim of the container unit.

This invention is related to a winding resistant cardboard, which mainly has at least one support unit and at least one carrying unit. The support unit has a cross section in a rectangular shape lacking one side to form an opening laterally disposed to face the at least one carrying unit. The carrying unit is formed by a plurality of corrugated boards disposed vertically and bound abreast. The support unit is formed by a plurality of stacked cardboards bound and pressed together to provide winding resistant function like beams and columns. The good pressure bearing strength of the support unit formed by a plurality of corrugated boards disposed vertically and attached abreast also help the winding resistant cardboard not to be bent and deformed under a heavy weight. Accordingly, the safety of the winding resistant cardboard as a building material or a packaging material can be elevated.

This invention is related to a winding resistant cardboard, which mainly has at least one support unit and at least one carrying unit. The support unit has a cross section in a rectangular shape lacking one side to form an opening laterally disposed to face the at least one carrying unit. The carrying unit is formed by a plurality of corrugated boards disposed vertically and bound abreast. The support unit is formed by a plurality of stacked cardboards bound and pressed together to provide winding resistant function like beams and columns. The good pressure bearing strength of the support unit formed by a plurality of corrugated boards disposed vertically and attached abreast also help the winding resistant cardboard not to be bent and deformed under a heavy weight. Accordingly, the safety of the winding resistant cardboard as a building material or a packaging material can be elevated.

The invention relates to uncoated, fiber/starch composite materials manufactured without the use of fluorochemicals or additional binders that offer superior oil and grease resistance properties. Addition of an internal sizing agent in the preparation of the fiber/starch composite materials results in superior hot water and cold water resistance properties. The fiber/starch composite materials may be used for the manufacture of food service containers. The invention also relates to methods of preparation of the fiber/starch composite materials.

The invention relates to uncoated, fiber/starch composite materials manufactured without the use of fluorochemicals or additional binders that offer superior oil and grease resistance properties. Addition of an internal sizing agent in the preparation of the fiber/starch composite materials results in superior hot water and cold water resistance properties. The fiber/starch composite materials may be used for the manufacture of food service containers. The invention also relates to methods of preparation of the fiber/starch composite materials.

A sheet having dead-fold properties, wherein said sheet comprises cellulose fibers whereof at least 75%, preferably at least 90%, or more preferably at least 95% of said cellulose fibers have a fiber length of less than 1 mm, and wherein the tensile strength ratio (MD/CD) of the film is above 1.4, preferably higher than 1.6 and most preferably higher than 1.8.