A prepreg contains a base material containing a reinforcing fiber and a semi-cured product of a resin composition impregnated into the base material containing a reinforcing fiber. The prepreg after cured has a glass transition temperature (Tg) which is higher than or equal to 150 C. and lower than or equal to 220 C. The resin composition contains (A) a thermosetting resin and (B) at least one compound selected from a group consisting of core shell rubber and a polymer component having a weight average molecular weight of 100000 or more. An amount of the (B) component is higher than or equal to 30 parts by mass and lower than or equal to 100 parts by mass with respect to 100 parts by mass of the (A) component.

A fiber-containing particulate resin structure (S) is a particulate resin structure including a resin (1) and fibers (2), in which the fibers (2) are dispersed in the resin (1) in an opened state, and an average density of the resin structure is in a range of 0.20 to 1.00 (g/cm.sup.3).

A resin composition containing the reaction product of a 5-hydroxymethyl furfural (HMF) produced in-situ from e.g., glucose and a phenolic compound. Phenolic compounds include phenol, cardanol and bio-phenol. The resin is heat-curable using cross-linking agents such as tetraethylammonium chloride or lignin, etc.

A coating agent contains a particulate fluorocarbon polymer, an acid-modified polyolefin, a urethane resin, and a curing agent. The present invention provides a coating agent capable of forming a coat with high wear resistance under high contact pressure and high temperature conditions, a surface-coated elastic body obtained using the same, and a surface-coated rubber metal laminate.

Polystyrene-phenolic foam composites and processes for their preparation are provided. The composites have very low density yet retain advantageous mechanical properties. The composites have excellent fire resistance properties and find application in the production of insulation panels.

A phenolic-resin molding material contains a novolac-type phenolic resin, a hexamethylene tetramin, and an inorganic filler. A total content of a content of the novolac-type phenolic resin and a content of the hexamethylene tetramin is 20 to 55 mass % with respect to an entirety of the phenolic-resin molding material. A content of the inorganic filler is 45 to 80 mass % with respect to the entirety of the phenolic-resin molding material. A content of the hexamethylene tetramin is 17 to 26 pts.mass with respect to an entirety of the novolac-type phenolic resin.

Disclosed herein are lignin-furfuryl alcohol compositions, lignin-furfuryl alcohol-resole (LFR) compositions comprising lignin-furfuryl alcohol composition and phenolic resoles and LFR foams derived from such LFR compositions. Disclosed herein are LFR foams comprising a polymeric phase defining a plurality of open cells and a plurality of closed cells, and a gas phase comprising one or more blowing agents disposed in at least a portion of the plurality of closed cells, wherein the polymeric phase is derived from LFR compositions.

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, and at least one solid, where the composition comprises at least one surfactant selected from the group of silicon-free quaternary ammonium compounds.

Provided are a phenolic resin foam that has low environmental impact, can maintain excellent thermal insulation performance over the long-term, and reduces condensation inside walls associated with increased water vapor permeation, and also a method of producing the same. The phenolic resin foam contains a phenolic resin and at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin foam has a density of at least 20 kg/m.sup.3 and no greater than 100 kg/m.sup.3, an average cell diameter of at least 10 um and no greater than 300 ?m, a closed cell ratio of at least 80% and no greater than 99%, and a water vapor permeance of at least 0.38 ng/(m.Math.s.Math.Pa) and no greater than 2.00 ng/(m.Math.s.Math.Pa).

A structure based on glass strand coated with a resin composition containing, by weight percent of solid matter: from 75 to 98% of a mixture of a first novolac having a glass transition temperature lower than or equal to 60 C. and a second novolac having a glass transition temperature above 60 C.; from 0.5 to 10% of a wax; from 1 to 15% selected from an imine and a modified melamine of formula (I): ##STR00001##
where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are each independently H, CH.sub.2OH, CH.sub.2OCH.sub.3, or CH.sub.2OCH.sub.2OCH.sub.3 radical, with at least one of R.sub.1 to R.sub.6 not being H; and from 0 to 10% of a plasticizing agent. Also, a resin composition for producing a reinforcing structure and bonded abrasive articles incorporating such a structure.