Resin particles include mother particles containing a biodegradable resin, in which an alkali metal atomic weight A present on a resin particle surface with respect to a total atomic weight present on the resin particle surface, which is measured by an X-ray photoelectron spectroscopy, and an alkali metal atomic weight B present in the resin particles with respect to the total atomic weight present on the resin particles, which is measured by a fluorescent X-ray spectroscopy, satisfy a relationship of 0≤(A/B)<0.15 and 0.005 atomic %≤B≤0.5 atomic %.

A scrubber and methods of forming a scrubber. The scrubber may include a foamed melamine resin, a first foamed polyurethane resin, a second foamed polyurethane resin, and a binder. The scrubber can be configured to exhibit the properties of both a scrubber and an eraser, and have a density ranging from 0.01 to 0.5 grams per cm.sup.3. A method of forming the scrubber may include the following steps: mixing foamed melamine resin particles, first foamed polyurethane resin particles, and second foamed polyurethane resin particles to form a first mixture; and mixing the first mixture with a binder to form a second mixture.

In one embodiment, the disclosure provides a film, which may be oriented, cast, or blown, that includes a core layer having a first side and a second side, wherein the core layer comprises hydrocarbon resin and polypropylene. Further, the film may include a first tie layer on the first side, wherein the first tie layer consists of polypropylene and about 5% or less of additives with exclusion of hydrocarbon resin (“HCR”), wherein the polypropylene is standard-crystalline polypropylene, high-crystalline polypropylene, or a mixture thereof, but preferably, it is a majority of high-crystalline polypropylene. Further still, the film may include a first skin layer on the first tie layer, and, also a coating on the first skin layer, wherein the coating comprises acrylic or acetate polymers or combinations thereof. The film maintains a minimum seal temperature of 300 g in.sup.−1 seal strength as compared to the film without any HCR.

A cellulosic particle includes: a cellulose-based core particle; a first coating layer covering the core particle and containing a polyamine compound; and a second coating layer covering the first coating layer and containing at least one selected from the group consisting of a wax, a linear-chain saturated fatty acid, a hydroxy fatty acid, and an amino acid compound.

A water barrier laminate including inorganic barrier and water-trapping layers alternately arranged in order from the side facing the device to the outer side: a first inorganic barrier layer, a first water-trapping layer, a second inorganic barrier layer, a second water-trapping layer and a third inorganic barrier layer. A water-permeable underlying plastic layer is provided on one side of these inorganic barrier layers; a distance L1a between the first water-trapping layer and the first inorganic barrier layer and a distance L2a between the second water-trapping layer and the second barrier satisfy formulas (1) and (2):

L1a<3 μm  (1)

L2a<3 μm  (2)

and a distance L1b between the second inorganic barrier layer and the first water-trapping layer satisfies formula (3):

L1b≤3 μm  (3)

by interposing a water-permeable organic layer therebetween.

A form birefringent optical element includes a structured layer and a dielectric environment disposed over the structured layer. At least one of the structured layer and the dielectric environment includes a nanovoided polymer, the nanovoided polymer having a first refractive index in an unactuated state and a second refractive index different than the first refractive index in an actuated state. Actuation of the nanovoided polymer can be used to reversibly control the form birefringence of the optical element. Various other apparatuses, systems, materials, and methods are also disclosed.

The present invention provides a thermosetting resin composition characterized by comprising a bismaleimide compound and a triazine compound having a diaminotriazine structure.

A preparation method of a three-layer self-healing flexible strain sensor includes steps of: preparing an encapsulating layer composite, so as to obtain a concentrated solution; preparing a strain sensitive layer composite, so as to obtain a thick liquid; dropping the thick liquid on a glass substrate, and statically curing at a room temperature; dropping the concentrated solution on a cured film obtained in the S3, and statically curing at the room temperature; striping a cured filmed obtained in the S4 from the glass substrate, and drawing out two wires as electrodes; and dropping the concentrated solution on the other surface of the cured film obtained in the S3 with a same amount of S4, and statically curing at the room temperature for obtaining the three-layer self-healing flexible strain sensor. The three-layer self-healing structure strain sensor can be prepared without using a repair agent, but can achieve rapid self-repair.

A preparation method of a three-layer self-healing flexible strain sensor includes steps of: preparing an encapsulating layer composite, so as to obtain a concentrated solution; preparing a strain sensitive layer composite, so as to obtain a thick liquid; dropping the thick liquid on a glass substrate, and statically curing at a room temperature; dropping the concentrated solution on a cured film obtained in the S3, and statically curing at the room temperature; striping a cured filmed obtained in the S4 from the glass substrate, and drawing out two wires as electrodes; and dropping the concentrated solution on the other surface of the cured film obtained in the S3 with a same amount of S4, and statically curing at the room temperature for obtaining the three-layer self-healing flexible strain sensor. The three-layer self-healing structure strain sensor can be prepared without using a repair agent, but can achieve rapid self-repair.

To provide reinforcing fibers that are excellent in adhesiveness to rubber even though resorcinol, formaldehyde, and an epoxy compound are not used, and a molded article using the same. Reinforcing fibers including fibers, a surface-modifying layer covering at least a part of a surface of the fibers, and an adhesive layer containing conjugated Diene-Based rubber covering at least a part of the surface-modifying layer, the surface-modifying layer containing a polyamine compound having one or more kind of a functional group selected from primary to tertiary amino groups and an imino group, having a weight average molecular weight (Mw) of 300 or more.