B32B38/16

Photochromic polyurethane laminate

A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

LAMINATE, PACKAGING MATERIAL, AND FOOD PACKAGING MATERIAL

A laminate is provided, which requires a shorter period of time for delamination thereof and hence is excellent in recoverability. The laminate includes a first outer layer, an intermediate layer, and a second outer layer which are disposed in this order. The intermediate layer contains a polyvinyl alcohol resin. A difference in water vapor transmission rate between the first outer layer and the second outer layer is not less than 100 cc.Math.30 μm/m.sup.2.Math.day, and the water vapor transmission rate of the first outer layer and the water vapor transmission rate of the second outer layer satisfy the following expression (1):


WVTR1<WVTR2  (1)

wherein WVTR1 is the water vapor transmission rate of the first outer layer and WVTR2 is the water vapor transmission rate of the second outer layer.

Roll-to-roll slot die coating method to create interleaving multi-layered films with chemical slurry coatings

An improved method for manufacturing a continuous self-healing barrier film is provided. The method includes slot-die coating opposing sides of a separator substrate with a curing agent slurry and a curable resin slurry using a single-sided coating line or a tandem coating line. The method also includes sequentially interleaving inner and outer protective layers via a continuous roll-to-roll process to create a multi-layered barrier film. The barrier film can optionally be formed into a barrier envelope, and an insulating core material can be inserted into the barrier envelope to define an enclosure. Evacuating and sealing the enclosure along a perimeter of the barrier envelop forms a self-healing vacuum insulation panel with excellent properties for use as a building material and in refrigeration systems, for example. The barrier film can alternatively be used in the manufacture of tires, roofing, cargo containers, food packaging, and pharmaceutical packaging, for example.

Packaging film having direct food contact identifiers and method of making thereof

Method for producing a packaging film strip for providing a number of individual packaging film parts for packing food or beverages, wherein the packaging film contains for each designated individual packaging film part an area having a printed two-dimensional code as unique packaging or product identifier. The process comprises the steps of providing at least one first substrate film strip (10, 25), applying on one side of said at least one first substrate film strip (10, 25) an artwork printing (20) for each individual packaging film part, depositing a DFC ink area (28) for each individual packaging film part onto the surface of the substrate film strip (10, 12) lying opposite to the artwork printing (20), slitting the packaging film to provide a series of individual packaging film parts running along the longside of the packaging film, ablating the individual DFC ink areas (28) by a computer-controlled laser beam (8) for providing a predetermined and individual code (2, 3, 30) as unique packaging or product identifier, cleaning the surface of the film strip comprising the individual codes (2, 3, 30), and checking the quality of the codes (2, 3, 30).

System and method for high-temperature lamination of printed circuit boards
11445619 · 2022-09-13 · ·

A method of manufacturing a press pad is disclosed. The method includes: providing a planar pad having a first surface and a second surface opposite to the first surface and a release film sheet, the release film sheet including a polyimide-based film; cleaning the planar pad, the cleaning including electrostatically removing particulates from surfaces of the planar pad; and attaching a release film sheet to the first surface of the planar pad, the release film sheet being attached to the first surface using an acrylic-based adhesive containing thermoplastic polyolefin and methyl acrylate.

MANUFACTURING METHOD OF ELECTRONIC DEVICE
20220097346 · 2022-03-31 ·

An manufacturing method of an electronic device includes: providing a first substrate and a second substrate; attaching an adhesive member onto the first substrate; and performing a curve attaching step, so that the first substrate and the second substrate are attached to each other through the adhesive member to form a curved composite component, wherein the curve attaching step is performed at a temperature of 20 degrees Celsius to 160 degrees Celsius.

PACKAGING FILM HAVING UNIQUE DIRECT FOOD CONTACT IDENTIFIERS
20210309004 · 2021-10-07 ·

Method for producing a packaging film strip for providing a number of individual packaging film parts for packing food or beverages, wherein the packaging film contains for each designated individual packaging film part an area having a printed two-dimensional code as unique packaging or product identifier. The process comprises the steps of providing at least one first substrate film strip (10, 25), applying on one side of said at least one first substrate film strip (10, 25) an artwork printing (20) for each individual packaging film part, depositing a DFC ink area (28) for each individual packaging film part onto the surface of the substrate film strip (10, 12) lying opposite to the artwork printing (20), slitting the packaging film to provide a series of individual packaging film parts running along the longside of the packaging film, ablating the individual DFC ink areas (28) by a computer-controlled laser beam (8) for providing a predetermined and individual code (2, 3, 30) as unique packaging or product identifier, cleaning the surface of the film strip comprising the individual codes (2, 3, 30), and checking the quality of the codes (2, 3, 30).

Label laminate and a method and a system for manufacturing a label laminate

The invention relates to a method for manufacturing a label laminate. The method includes forming at least one water based adhesive layer on a belt, drying said at least one water based adhesive layer on the belt, unwinding a first material layer, unwinding a second material layer, attaching said at least one dried water based adhesive layer to the surface of the first material layer, and laminating the first material layer comprising at least one water based adhesive layer together with the second material layer in order to form the label laminate. The invention also relates to a label laminate and to a system for manufacturing a label laminate.

GLASS COMPOSITE, CASING, DISPLAY DEVICE AND TERMINAL DEVICE
20210300001 · 2021-09-30 ·

A glass composite includes a first glass member and a second glass member. The first glass member and the second glass member are at least partially connected with each other at the surfaces. The glass composite has a light transmittance not lower than 95% of the light transmittance of the one, with the lower light transmittance, of the first glass member and the second glass member.

Bonding wood or other plant products using ultrasound energy
11097444 · 2021-08-24 ·

A filler material is applied to a plurality of wood elements. The plurality of wood elements is bonded into a composite wood product, where the bonding includes delivering ultrasound energy to the plurality of wood elements. The ultrasound energy has a frequency within a frequency range of 10 kHz-20 MHz.