The invention disclosed herein is an automotive acoustic panel including a porous sound-absorption material made from a polymer and an expanded perlite. One or more silane compounds may be coupled or coated onto the expanded perlite while a coupling agent and a chemical foaming agent may additionally be added to the automotive acoustic panel.

An article includes a thermoplastic resin, a metal-resin composite particle, and a pore and a method of manufacturing the article. The metal-resin composite particle includes a metal deposition layer, a first coating layer positioned on one side of the metal deposition layer, and a second coating layer positioned on the other side of the metal deposition layer, and the first and second layers include a thermosetting resin respectively.

An in-situ foam system and process comprises the components one or more inorganic fillers A) at from 50 to 98 wt %, one or more cationic or amphoteric polymers B) at from 1 to 48 wt %, one or more surfactants C) at from 0.5 to 48 wt %, one or more crosslinkers D) capable of reacting with said polymers B) at from 0.01 to 5 wt %, one or more cell regulators E), selected from silicones, siliconates and carbon, at from 0.5 to 10 wt %, one or more additives F) at from 0 to 20 wt %, wherein the weight percentages of said components A) to F) are based on the nonaqueous fractions and the sum total of A) to F) adds up to 100 wt %.

A microporous polyimide-based film having excellent strength, permeability, and thermal stability is used as a separator for a lithium ion secondary battery, and a method of producing the same is provided.

Processes for preparing polystyrene-phenolic foam composites and precursor compositions are described. The processes yield composites having advantageous properties useful in insulation and fire resisting applications.

A polyvinylidene difluoride membrane is provided. The polyvinylidene difluoride membrane including polyvinylidene difluoride having a melt viscosity of 35 to 60 (k poise), and the surface of the polyvinylidene difluoride membrane has a pore size of 0.1 ?m to 5 ?m. A method of manufacturing a porous polyvinylidene difluoride membrane and a method of purifying brine are also provided. The method of purifying brine includes the above-mentioned polyvinylidene difluoride membrane.

A battery insulation sheet includes a substrate, and an aerogel layer on the substrate, wherein the aerogel layer includes a fibrous support; an aerogel; and a functional material including a binder, a dispersant, or a combination thereof, and satisfies Formula 1 below:

[00001]$\begin{array}{cc}50A100,000,A=T_i/D_s,& \mathrm{Formula}1\end{array}$

wherein, in Formula 1, T.sub.i denotes a thickness of the aerogel layer, and D.sub.s denotes an average diameter of the fibrous support.

A composition includes a multiplicity of particles, a modifier, and a material throughout which the multiplicity of particles is distributed. The multiplicity of particles includes silicate. The modifier includes bio-carbon. The modifier at least partially coats each particle of the multiplicity of particles.

In the present technology, a thermally expandable microcapsule complex is blended in a rubber component, the thermally expandable microcapsule complex being obtained by preparing an aqueous solution of a water-soluble polymer having a concentration of 1 to 30 mass %, adding from 5 to 60 parts by mass of cellulose fibers to 100 parts by mass of the aqueous solution to prepare a liquid dispersion (1), adding from 10 to 200 parts by mass of thermally expandable microcapsules to the liquid dispersion (1) to prepare a liquid dispersion (2), and evaporating the moisture content of the liquid dispersion (2).

Melamine-polyol dispersions comprising ethoxylated alcohols of specific structures are disclosed. Such dispersions maintain their stability under stationary conditions for at least 24 hours and are useful in the manufacturing of polyurethane foams. The resulted polyurethane foams display more evenly-distributed flame retardant properties.