B32B2307/74

Absorbent fluff and tissue laminate pads for food packaging

An absorbent pad has: a first, outer layer comprising a permeable or non-permeable film; a second, outer layer comprising a permeable or non-permeable film, placed on a side of the pad opposite the first, outer layer; a third layer disposed between the first layer and the second layer, and comprising a tissue laminate comprising at least a first ply and a second ply, with at least one chemical agent or system fixed in the third layer and being either activated by contact with or soluble in an aqueous liquid, the at least one chemical agent or system being in a predetermined amount distributed substantially uniformly per unit area of the surface area between the at least first ply and second ply: and a fourth layer disposed between the first layer and the second layer and comprising fluff, with or without a chemical agent or system, the third layer being joined to the fourth layer to serve as a substrate for the fourth layer.

LAMINATE CONTAINING POLYCARBONATE COMPOSITION LAYERS AND FIBER STRUCTURE LAYERS WITH IMPROVED FIRE RESISTANCE PROPERTIES

Disclosed are laminate composition comprising one or more layers of a fiber structure and two or more layers of a polymeric composition wherein each layer of the fiber structure is disposed between two layers of the polymeric composition wherein the polymeric composition comprises one or more branched polycarbonates and one or more crosslinked phosphazenes; wherein the laminate composition exhibits a UL 94 rating of V-0 with a (T1-T2) of 50 or less. The polymeric film composition may contain one or more linear polycarbonates. The polymeric film composition may contain one or more recycled branched polycarbonates or one or more recycled linear polycarbonates. The polymeric film composition may contain one or more salts of a perflourohydrocarbyl sulfur N compounds or aromatic sulfur compounds.

RESIN ARTICLE HAVING EXCELLENT DISCOLORATION RESISTANCE

An article represented by a container that is formed of a thermoplastic resin blended with a metal or a metal compound that can react with a corrosive gas or a volatile sulfur compound and give a color. The thermoplastic resin includes at least one metal selected from three metals of Zn, Sn and Mn or one metal compound thereof, and a metal or a metal compound that is not any of these three metals and that can react with the corrosive gas or the volatile sulfur compound and give a color. The metal selected from the three metals or the metal compound functions as a scavenger for the corrosive gas or the volatile sulfur compound.

Antioxidant active food packaging

Food packaging material comprising a polymeric material and a natural antioxidant. The natural antioxidant may be extracted, isolated and/or derived from plant material. A method for forming a food packaging material is also provided, comprising forming a mixture comprising a natural antioxidant and a polymeric resin and processing the mixture to form a food packaging material.

FOOD PACKAGING FILM WITH ANTIOXIDANT FOR FRESHNESS PROTECTION

A food packaging film comprising a polymer-based core layer having a food-facing side and an exterior-facing side, a food-facing skin layer on the food-facing side of the core layer, and an exterior skin layer on the exterior-facing side of the core layer, wherein the core layer and the food-facing skin layer each contains a natural or synthetic antioxidant, and the film is free of BHA and BHT.

Techniques to mold parts with injection-formed aperture in gate area
10688748 · 2020-06-23 · ·

Methods and systems for co-extruding multiple polymeric material flow streams into a mold cavity to produce a molded plastic article having an injection-formed aperture in gate region of the article are disclosed herein. A method includes providing a valve pin having a distal portion with a first diameter and a mid-portion with a second diameter smaller than the first diameter and providing a mold defining a cavity corresponding to a shape of a resulting molded plastic article. The mold has a recess aligned with a gate region of the mold, extending into the mold and configured to receive the distal portion of the valve pin when the distal portion of the valve pin extends beyond the gate region. The method includes advancing the distal portion of the valve pin into the recess until the mid-portion of the valve pin at least partially extends into the gate region, thereby establishing a flow path for a combined polymeric stream into the cavity at the gate region for forming a molded plastic article having at least one layer of a first polymeric material and at least one layer of a second polymeric material. The method also includes withdrawing the mid-portion of the valve pin from the gate region, thereby forming an injection-molded aperture in the resulting molded plastic article at the gate region.

MULTILAYER RECYCLABLE ULTRASONICALLY WELDED FILMS
20200189246 · 2020-06-18 ·

Embodiments herein relate to multilayer recyclable films for food packaging. In an embodiment, a multilayer packaging film is included with a first polymeric layer, a second polymeric layer, and a third polymeric layer. The first layer and the third layer can directly contact opposite sides of the second layer. The first layer and the third layer can be directly bonded to the second layer via a welding process. The first polymeric layer, the second polymeric layer, and the third polymeric layer can each contain the same thermoplastic polymer. The second polymeric layer can include an amount of a functional additive that is different than the first and third polymeric layers. Other embodiments are also included herein.

MULTILAYER PACKAGING MATERIALS WITH RELEASE OF MIGRATORY ACTIVE SUBSTANCES
20200189247 · 2020-06-18 ·

Embodiments herein relate to multilayer films for food packaging including migratory active substances. In an embodiment, a multilayer packaging film is included with a first polymeric layer and a second polymeric layer, wherein the first polymeric layer directly contacts a first side of the second polymeric layer. The first polymeric layer can be directly bonded to the second polymeric layer via a welding process. The first polymeric layer and the second polymeric layer can each comprise the same thermoplastic polymer. Contact between the first polymeric layer and the second polymeric layer can be discontinuous defining a plurality of cavities between the first polymeric layer and the second polymeric layer. Other embodiments are also included herein.

OXYGEN ABSORBING RESIN COMPOSITION, OXYGEN ABSORBING FILM, OXYGEN ABSORBING MULTI-LAYER FILM, AND COVER MATERIAL

An oxygen absorbing resin composition containing a polyolefin, an iron powder, titanium oxide, and calcium oxide, a content of the iron powder being from 10 to 50 mass % in the oxygen absorbing resin composition, a mass ratio of the titanium oxide to the iron powder [titanium oxide/iron powder] being from 0.1 to 0.5, and a mass ratio of the calcium oxide to the iron powder [calcium oxide/iron powder] being from 0.1 to 0.5.

Laminate for retort packaging and container
10633158 · 2020-04-28 · ·

The invention provides a laminate for retort packaging that can be applied to a retort packaging container having excellent bag drop strength at low temperature, and a container that uses this laminate for retort packaging. A laminate for retort packaging (10), wherein a sealant layer (21) is formed of a resin that is composed mainly of a polyethylene resin composition composed of at least 30% by mass but not more than 50% by mass of a high-density polyethylene, at least 40% by mass but not more than 50% by mass of a linear low-density polyethylene, and at least 10% by mass but not more than 20% by mass of a high-pressure low-density polyethylene.