Disclosed are a method of preparing an elastic pressure-sensitive adhesive tape and an elastic pressure-sensitive adhesive tape. Main components of the adhesive include a polyacrylate resin with a carbon-carbon double bond and a diluent monomer with a carbon-carbon double bond. A quasi-microcapsule powder component is adopted, wherein the shell material of the quasi-microcapsule powder selects a cellulose-based water soluble polymer, and the core material selects low boiling point alkane, wherein the preparation method combines UV curing, heating, and shell burst, to obtain an elastic adhesive layer, whereby to prepare a pressure-sensitive adhesive tape product. Compared with conventional elastic pressure-sensitive adhesive tapes, the preparing method as disclosed has a simple manufacturing process. The pressure-sensitive adhesive tape obtained from the disclosed preparing method overcomes the restrictions of conventional foam strips and provide good cushioning and compression properties without using foam as the carrier.

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

A hybrid expandable composition that provides improved expansion and loft properties is disclosed. The hybrid expandable composition is particularly useful in providing insulation and/or cushion to substrates.

A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pressure-sensitive adhesive component and a heat-expandable agent. In the second step, an energy ray (R) is irradiated from the pressure-sensitive adhesive layer (10)-side of the bonded product (100) toward the adherend (20). A transmittance of the energy ray (R) in the pressure-sensitive adhesive layer (10) is 60% or more. The pressure-sensitive adhesive composition of the present invention is a composition used for forming the pressure-sensitive adhesive layer (10) in the method.

The present invention aims to provide a foam that is less likely to deflate even after prolonged or repeated load application, has low density, and has good appearance quality, and a method for producing the foam. Provided is a foam including cells dispersed in an elastomer resin, the foam having a thickness of 300 μm or greater, the foam having a surface layer that is a portion from a surface to a depth of 100 μm and a center portion that is a portion other than the surface layer, the cells in the surface layer having an average circularity of 0.980 or greater, the cells in the center portion having an average circularity of 0.990 or greater, the cells having an average diameter of 70 μm or greater.

The present invention aims to provide a foam that is less likely to deflate even after prolonged or repeated load application, has low density, and has good appearance quality, and a method for producing the foam. Provided is a foam including cells dispersed in an elastomer resin, the cells having an average diameter of 40 to 60 μm and an average circularity of 0.990 or greater.

Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ≤150 cPs for ≥1 min. post-preparation and ≤300 cPs≤5 min. post-preparation, at ambient temperature.

The present invention provides a thermally expandable microcapsule that has excellent heat resistance and compression resistance and that enables the production of a foam molded article that is less likely to undergo deterioration or appearance defects over a long period of time, as well as a foamable masterbatch and a foam molded article each produced using the thermally expandable microcapsule. Provided is a thermally expandable microcapsule including a shell and a volatile expansion agent as a core agent encapsulated by the shell, the shell containing a black material and a polymer compound.

A method for producing a syntactic foam for high-pressure environments includes providing a housing having a void volume. The housing may include an inlet and an outlet to the void volume of the housing. The method includes injecting a plurality of microspheres comprising glass into the housing. The plurality of microspheres include a first set of microspheres comprising an average diameter ranging from 5 microns to 150 microns. The method includes agitating the housing to settle the plurality of microspheres within the housing. The method includes injecting a resin from the inlet of the housing to the outlet of the housing to fill voids between the plurality of microspheres to form a resin-microsphere matrix. The resin may have a viscosity less than 100 centipoise. The method may include curing the resin-microsphere matrix in the housing to produce a cured composition.

The present disclosure relates to a super absorbent polymer and a preparation method of the same. More specifically, it relates to a super absorbent polymer having a reduced extractable content without deterioration in absorption performance, and to a preparation method of the super absorbent polymer capable of producing the above-described super absorbent polymer by performing a polymerization reaction in the presence of a foaming agent and a carboxylic acid-based additive having a specific structure.