The invention relates to a composition for producing phenolic foam, comprising at least one phenolic resin, at least one blowing agent, at least one catalyst, characterized in that it comprises at least one acrylate and/or methacrylate copolymer as foam stabilizer.

Provided are highly reliable silver-coated conductive particles, which are prevented from an occurrence of migration, the silver-coated conductive particles in which: a tin layer is formed on a surface of each spherical base particle, and a silver plating layer is formed on a surface of the tin layer, and a surface of the silver plating layer is coated with a water repellent layer: the water repellent layer includes an organic sulfur compound that is mainly composed of a sulfide compound or a surfactant such as polyoxyethylene ethers: and a molded body that is formed by pressing the silver-coated conductive particles at a pressure of 14.7 MPa has a contact angle with water of 125 degree or more.

A phenolic resin foam laminated sheet comprising a phenolic resin foam; and a face material for covering a surface of the phenolic resin foam, wherein the phenolic resin foam contains a hydrocarbon, a chlorinated aliphatic hydrocarbon or a combination thereof, a density of the phenolic resin foam is 10 kg/m.sup.3 or higher and 100 kg/m.sup.3 or lower, an average cell diameter of the phenolic resin foam is 5 m or larger and 200 m or smaller, a closed cell content of the phenolic resin foam is 85% or higher and 99% or lower, and an absolute value of a dimensional charge rate of the phenolic resin foam after 70 C. for 48 hours is 0.49% or lower.

A phenolic resin composition for friction materials includes a high-ortho novolac phenolic resin, a novolac resorcinol resin, and hexamethylenetetramine.

Provided are an fiber-reinforced plastic molding material having a satisfactory handling property, long storage stability, and high moldability enabling shaping into even a complicated shape, and a molded article thereof having excellent heat resistance, mechanical strength, and a method of producing the same. The fiber-reinforced plastic molding material includes a matrix resin containing, as an essential component, a phenoxy resin being solid at ordinary temperature and having a melt viscosity of 3,000 Pa.Math.s or less at anywhere in the temperature region of from 160 C. to 220 C., with an epoxy resin and a cross-linking agent being blended as desired, in which the matrix resin is turned into fine powder having an average particle diameter (d50) of from 10 m to 150 m, and the matrix resin is caused to adhere to a reinforcing fiber base material by powder coating so as to achieve a resin content of from 20% to 50%.

One embodiment of the present invention is to provide a high-capacity lithium ion secondary battery and a production method thereof. To perform surface modification, a spherical resin is subjected to first heat treatment at a temperature higher than or equal to 500 C. in an inert atmosphere. By the heating, the contraction of a particle, the void formation due to a gas release from an inside of the particle, the crack on a particle surface, and the like are caused so as to form a support for sulfur that is to be mixed later. Obtained spherical particles and sulfur powder are mixed and then stored in a container. The mixture in the container is subjected to second heat treatment at a temperature higher than or equal to 120 C. without being exposed to outside air.

Disclosed are an ultrasonic transducer matching layer material and a preparation method thereof. The ultrasonic transducer matching layer material includes the following components in parts by weight: 1534 parts of phenolic resin, 5092 parts of alumina, 317 parts of graphite, 116 parts of carbon fiber, 1.55 parts of curing agent and 0.55 parts of lubricant. The ultrasonic transducer matching layer material is prepared by internal mixing and thermoforming the powder of raw materials.

Resin compositions having a reduced solubility and methods for making and using same are provided. In at least one specific embodiment, the resin composition can include a phenolic resin, a latent acid, a catalyst, and a liquid medium. The catalyst can be a base compound and can be present in an amount of about 2 wt % to about 7 wt %, based on the combined weight of the phenolic resin, the latent acid, the catalyst, and the liquid medium.

Composite Maillard-resole binders to produce or promote cohesion in non-assembled or loosely assembled matter.

Resin compositions having a reduced solubility and methods for making and using same are provided. In at least one specific embodiment, the resin composition can include a phenolic resin, a latent acid, a catalyst, and a liquid medium. The catalyst can be a base compound and can be present in an amount of about 2 wt % to about 7 wt %, based on the combined weight of the phenolic resin, the latent acid, the catalyst, and the liquid medium.