Composition useful for the manufacture of lubricant mineral fibers comprises water and dry extract of coupling agent and polyvinylpyrrolidone

摘要

Composition comprises water and a dry extract comprising a coupling agent (1-30 wt.%) and polyvinylpyrrolidone (30-99 wt.%). Independent claims are included for: (1) mineral fiber lubricated by the composition; (2) a continuous fiber mat comprising the fiber; (3) a process of preparing a composite material with thermohardening matrix comprises impregnation of the mat by a thermohardening resin; (4) a process of preparing a preimpregnated sheet (sheet molding compound) comprises continuous insertion of the mat between two layers of thermohardening resin paste; (5) a preimpregnated sheet comprising the mat and thermohardening resin; (6) a process of manufacturing a composite material by sheet molding of pressure on its main sides leading to widening of the sheet before solidification of the resin; and (7) a composite material with thermo hardening matrix reinforced by the mat.