Patent classifications
B32B2307/548
Thermoplastic composition made of polypropylene and polyamide-grafted polyolefin
A composition of a blend of polypropylene, which may be present at between 10% and 90% by weight of the blend, and a polymer having a polyolefin core and polyamide grafts, optionally with an EPDM and/or a functional additive, which may be present at between 10% and 90% by weight of the blend. Also, a multilayer structure including a plurality of adjacent layers, at least one of which is the aforementioned composition.
ACRYLIC BLOCK COPOLYMER-BASED ASSEMBLY LAYER FOR FLEXIBLE DISPLAYS
The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors including an acrylic block copolymer including (a) at least two A block polymeric units that are the reaction product of a first monomer composition comprising an alkyl methacrylate, an aralkyl methacrylate, an aryl methacrylate, or a combination thereof, wherein each A block has a Tg of at least about 50 C., and wherein the acrylic block copolymer comprises about 5 to about 50 weight percent A block, and (b) at least one B block polymeric unit that is the reaction product of a second monomer composition comprising an alkyl (meth)acrylate, a heteroalkyl (meth)acrylate, a vinyl ester, or a combination thereof, wherein the B block has a Tg no greater than about 10 C., and wherein the acrylic block copolymer comprises about 50 to about 95 weight percent B block. Within a temperature range of between about 30 C. to about 90 C., the assembly layer has a shear storage modulus at a frequency of 1 rad/sec that does not exceed about 2 MPa, a shear creep compliance (J) of at least about 610.sup.6 1/Pa measured at 5 seconds with an applied shear stress between about 50 kPa and about 500 kPa, and a strain recovery of at least about 50% at at least one point of applied shear stress within the range of about 5 kPa to about 500 kPa within about 1 minute after removing the applied shear stress.
Methods for using hot melt adhesives based on a blend of propylene polymers made using single-site catalysts
A method for making a laminate comprises the steps of applying a hot melt adhesive composition in a molten state to a primary substrate and mating a secondary substrate to the first substrate by contacting the secondary substrate with the adhesive composition. The composition comprises a polymer blend based on a low molecular weight semicrystalline propylene based polymer and a high molecular weight essentially amorphous propylene based polymer, both of which are prepared by using single-site catalysts. The composition further contains a compatible tackifier, a plasticizer, an antioxidant, and optionally a wax, a filler, a colorant, a UV absorber, another polymer, or combinations thereof. Particularly preferred applications include nonwoven disposable diaper and feminine sanitary napkin construction, diaper and adult incontinent brief elastic attachment, diaper and napkin core stabilization, diaper backsheet lamination, industrial filter material conversion, and surgical gown and surgical drape assemblies.
BOARD WITH IMPROVED COMPRESSION STRENGTH
A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.
MULTILAYER ASSEMBLY INCLUDING A COMPOSITE MATERIAL
The present invention relates to a multilayer assembly comprising a metal surface and a coating which adheres directly on such surface and which includes a cross-linked composite of a polymer and a filler in the form of fibres.
Sag-resistant substrates and methods of preparing and using same
Described herein are substrates comprising: a core comprising a plurality of open cells; a first facing layer attached to a first major side of the core by a first adhesive; and a second facing layer attached to a second major side of the core by a second adhesive; wherein the glass transition temperature of the second adhesive is greater than the glass transition temperature of the first adhesive.
BONDING LAYER HAVING DISCRETE ADHESIVE PATCHES
At least some aspects of the present disclosure feature a bonding layer including a support layer and discrete adhesive patches disposed on one or both sides of the support layer. At least some aspects of the present disclosure feature a flexible display using a bonding layer including discrete adhesive patches.
ADHESIVE FILM, LAMINATE, LIQUID CRYSTAL DISPLAY, AND LAMINATED GLASS
The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin and has a thickness of 150 ?m or more and 2000 ?m or less, in which an amount of change in thickness of a test sample A in a predetermined compression creep test performed is 50 ?m or more and 325 ?m or less, and an adhesive force to a polycarbonate base material, as measured by a predetermined pressure-sensitive adhesive force measurement method, is 100 N or more. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of second organic material substrate and inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprises the laminate of the present invention. According to the present invention, there can be provided a pressure-sensitive adhesive film, a laminate comprising the pressure-sensitive adhesive film, and a liquid crystal display and a laminated glass each comprising the laminate, in which a transparency in low-temperature sticking is favorable, foaming in an end portion in low-temperature sticking is small, and adhesiveness to a resin material such as a polarization film is favorable.
SILICONE RUBBER COMPOSITION AND SILICONE RUBBER CROSS-LINKED BODY, AND INTEGRALLY MOLDED BODY AND METHOD FOR PRODUCING INTEGRALLY MOLDED BODY
Provided is a silicone rubber composition that has excellent storage stability and an improved post-curing compression set, and a silicone rubber cross-linked body made from the silicone rubber composition. A silicone rubber composition contains (a) an organopolysiloxane, (b) a cross-linking agent, and (c) a microcapsule type catalyst that is made from resin microparticles encapsulating a cross-linking catalyst, wherein the resin of (c) is one of a thermosetting resin that is thermally cured in the presence of the cross-linking catalyst and a thermosetting resin that is thermally cured in the absence of the cross-linking catalyst.
FLEXIBLE DISPLAY DEVICE
A flexible display device includes: a flexible substrate; a thin-film transistor on the flexible substrate; a passivation film covering the thin-film transistor; and a display element on the passivation film and electrically connected to the thin-film transistor. The passivation film includes a material exhibiting a shear-thickening phenomenon.