Patent classifications
B32B2439/66
POLYMERIC BLENDS AND USES THEREOF FOR MAKING TRANSPARENT RIGID AND HEAT-RESISTANT THERMOPLASTIC WORKPIECES
Polymeric blends and thermoplastic compositions which can be used for making thermoplastic workpieces are provided. The polymeric blends and thermoplastic compositions comprise a copolyester and an oxygen scavenging polyester, and optionally an oxidation catalyst. These blends and compositions may be used for making heat-resistant rigid and transparent containers having a low gas permeability. These thermoplastic workpieces and containers may find numerous applications for food, beverage, medical, pharmaceuticals and cosmetic products, as well as for any other application for which it is desirable to inhibit exposure to oxygen during storage. Particular examples provided are bottles and jugs particularly that are useful for hot fill applications.
CURABLE POLYMERIC COATINGS FOR FUNCTIONAL SURFACE PREPARATIONS
The present invention is directed to a curable polymer comprising: a base acrylic monomer (monomer A); a monomer with bioactive functionality (monomer B); a monomer containing a cross-linker (monomer C). The present invention also relates to a method of making a polymer coating on a solid support. The present invention also relates to a method of preserving a product.
SYSTEMS AND METHODS FOR LAMINATING CAN END STOCK
Improved aluminum can end stock (CES) is disclosed. The CES includes an adhered polymer coating exhibiting low feathering and high performance in various acid tests. The low feathering and resistance to acid tests is accomplished by incorporating a copolymer adhesion promoter film to an aluminum alloy before lamination. In some cases, the metal strip is pretreated with a conversion layer, which can include compounds of trivalent chromium (Cr(III)) and phosphates or titanium and zirconium.
GLYCOLIC ACID POLYMER
The invention pertains to an improved branched glycolic acid copolymer, comprising recurring units derived from an aromatic dicarboxylic acid, which has an appropriate rheological profile so as to be successfully used in combination with standard polyester resins for obtaining multi-layer containers having thin barrier layers.
PRESSURE-RESISTANT CONTAINER
The invention relates to a can containing a liquid and/or a gaseous medium which has positive pressure or develops such during transport or storage, wherein the cylindrical can shell of the can consists mainly of paper or cardboard material and is closed at the bottom with a bottom element and at the top with a cover element, wherein the can withstands an internal pressure of at least 5 bar, wherein the innermost layer of the can shell consists of a straight-wound barrier layer having a longitudinally extending folded seam, wherein the barrier layer is a prefabricated laminate made of an inner diffusion-tight barrier film or an inner diffusion-tight barrier laminate and an outer kraft paper layer.
Starch coated polyester film for release of canned meat products
An embodiment relates to a multi-layer, biaxially oriented polyester (BOPET) film comprising a food contact substance, wherein the BOPET has a percent release in a retort test after can lamination such that substantially all food contacting the BOPET during the retort test is released. Another embodiment relates to a method comprising applying a food contact material comprising a food contact substance to a multi-layer, biaxially oriented polyester (BOPET) film, wherein the food contact material is prepared at around room temperature without heating.
RESIN-COATED METAL SHEET FOR CONTAINER
A resin-coated metal sheet for a container, the metal sheet including: a first resin coat layer provided on a first surface of the metal sheet; a second resin coat layer provided on a second surface of the metal sheet, wherein each of the first and the second resin coat layers is composed mainly of a polyester resin having a melting point of 230 C. to 254 C., and the first resin coat layer, in a state that the resin coat layers coat the metal sheet, is formed of a resin material having: an arithmetic average roughness (Ra) of 0.10 m to 1.0 m; a crystallization temperature of 110 C. to 160 C.; and a water contact angle of 55 degrees to 80 degrees in a state that the resin coat layers have been heated at 240 C. for 90 seconds after the resin coat layers coat the metal sheet.
Biaxially drawn colored polyester film for laminating metal sheet
[Problem] To provide a biaxially drawn colored polyester film for laminating and forming metal sheet that: exhibits excellent formability such that even under severe processing or high-temperature heat treatments, the film is prevented from chipping or cracks during forming into a can etc.; and yields formed articles such as cans that have excellent concealability, appearance, and printability. [Solution] The invention is arrived at using a biaxially drawn colored polyester film for laminating and forming metal sheet. Said film comprising at least two layers of: a surface layer (layer A) mainly composed of a polyester having a melting point TmA of 230 to 260 C., layer A having a coloring pigment with an amount of 10 wt % or less, a polymer component with intrinsic viscosity of 0.46 or more, and a water contact angle of 70 to 120 on an outer surface; and a substrate layer (layer B) mainly composed of a polyester having a melting point TmB of 230 to 260 C. and a coloring pigment, layer B having a polymer component with intrinsic viscosity of 0.46 or more and the coloring pigment with an amount of more than 10 wt % and 50 wt % or less; wherein |TmBTmA| is 4 C. or less.
Process for laminating a polymeric film to a metal strip substrate and a metal strip substrate produced thereby
A process for laminating a polyester film onto a major surface of a metal strip and to a laminated metal strip produced thereby, or a can produced therefrom.
STEEL SHEET AND METHOD OF MANUFACTURING SAME
Steel sheet for cans high in strength and excellent in formability and appearance comprising C: 0.0010 to 0.0035%, Si: 0.050% or less, Mn: 0.10 to 0.50%, P: 0.040% or less, S: 0.040% or less, Al: less than 0.005%, N: 0.0050% or less and a balance of Fe and unavoidable impurities, wherein an average value of a ratio of length of crystal grains in a sheet thickness direction to length in a sheet width direction is 0.70 or more, a yield strength is 500 MPa or more, and, in a range of 0 to 90 of the rolling direction, a minimum value of an r-value is 1.50 or more, an average value of the r-value is 1.70 or more, and a difference of the maximum value and minimum value of the r-value is 0.50 or less.