The present invention discloses a multilayer composite rubber-plastic foam insulation material and a preparation method thereof. The composite rubber-plastic foam insulation material includes a two-layer structure; the two-layer structure includes an insulation layer and a first functional layer; the insulation layer and the first functional layer are both made of a rubber-plastic foam material; the first functional layer and the insulation layer are integrally molded by blending extrusion and vulcanization foaming, and the first functional layer and the insulation layer form an integral structure. The multilayer composite rubber-plastic foam insulation material provided by the present invention adopts a vulcanization foaming integral molding process, and not only ensures the thermal insulation property of the insulation layer, but also gives the functional layer corresponding functions by selecting different functional polymers, thereby satisfying a variety of personalized needs in engineering applications.

A resin composition includes an unsaturated C═C double bond-containing polyphenylene ether resin, a polyolefin and silica; in an X-ray diffraction analysis pattern of the silica as measured by reference to JY/T 009-1996, only one diffraction peak exists in a 2θ ranging from 10° to 30°, and the diffraction peak has a full width at half maximum of 5.0° to 7.7°. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and achieves improvements in at least one of the properties including dissipation factor, resin filling property in open area, hole drilling limit value, and precision of hole position Cpk.

The present disclosure relates to a thermosetting resin composition for a semiconductor package including a modified phenylene ether oligomer or a modified poly(phenylene ether) having ethylenically unsaturated groups at both ends thereof; a thermosetting resin; a predetermined elastic (co)polymer; and an inorganic filler, and a prepreg and a metal clad laminate including the same.

The invention is directed to a thermally expandable composition comprising at least one solid rubber, at least on tackifying resin, a vulcanization system, and a thermally expandable graphite. The invention is also directed to a welding sealer tape comprising a substrate layer composed of the thermally expandable composition, to a method for providing sealing, structural adhesion, baffling, or combination thereof to a structure of a manufactured article, to a baffle and/or reinforcing element comprising the thermally expandable composition, to a method for sealing, baffling and/or reinforcing a cavity or a hollow structure, and to use of a thermally expandable graphite as a blowing agent in a thermally expandable material.

Provided are a solid electrolyte composition containing an inorganic solid electrolyte having a conductivity of an ion of a metal belonging to Group I or II of the periodic table and a binder having a specific hydrocarbon polymer segment and a specific segment, a solid electrolyte-containing sheet in which the same solid electrolyte composition is used and a manufacturing method therefor, an all-solid state secondary battery and a manufacturing method therefor, a polymer having a specific hydrocarbon polymer segment and a specific segment, and a non-aqueous solvent dispersion thereof.

Elastomeric compositions are described that include at least one filler that are carbon nanostructures or fragments thereof. Methods to prepare elastomeric compositions are further described. Loadings of the carbon nanostructures can be from about 0.1 phr to about 50 phr or a volume fraction of from about 0.1 vol % to about 20 vol %.

A method for producing a synthetic rubber, the method including: an emulsification step of continuously feeding a solution or a dispersion of a synthetic rubber obtained by dissolving or dispersing the synthetic rubber in an organic solvent and an aqueous solution of an emulsifier to a mixer and mixing to continuously obtain an emulsion; a first removal step of removing the organic solvent from the emulsion continuously obtained in the emulsification step in a container while the emulsion is continuously transferred to the container regulated to a pressure condition of 700 to 760 mmHg; and a second removal step of removing the organic solvent from the emulsion that has undergone the first removal step under a pressure of less than 700 mmHg.

The fragrant gel polymer system is a process where a complete fragrance formulation remains whole and is then blended with either a polymer or a cross-linking agent. The non-fragrance carrying polymer is then liquefied and made homogenous with a solvent, including esters. The solvents modify viscosity and ease the mixing of the non-fragrance carrying polymer with the fragrance carrying polymer. The method also provides surfactants and wetting agents for further integration and mixing of the fragrance oils with either the polymer or the cross-linking agent during the steps of the process. Mixing of the fragrance carrying polymer and the non-fragrance polymer results in a gel that sets in less time and with less syneresis than existing processes.

Methods for producing an uncured masterbatch material from a solution masterbatch that includes an uncured polymer, for example a polydiene such as present in a guayule cement, a diluting liquid and a particulate filler. The solution masterbatch is subjected to resonant acoustic mixing which provides excellent dispersion of the solution components and leads to a masterbatch material having desirable properties. After resonant acoustic mixing, the solution masterbatch can be dried and further processed with other components and a curative to prepare a vulcanized composition.

The present invention provides a process for forming an article from a diene rubber, comprising: providing a raw diene rubber substance comprising 1,2-polybutadiene rubber component; adding to the raw diene rubber substance a peroxide as a vulcanizing agent; softening the raw diene rubber at a first temperature of not more than 200° C.; vulcanizing the diene rubber at a second temperature of not more than 200° C., with contacting the diene rubber to an ambient atmosphere; and forming from the vulcanized diene rubber an article.