초록 ▼

A method for manufacturing a mineral fiber product includes establishing a stream of mineral fibers, directing polymeric fibers toward the stream of mineral fibers to cause intermingling of the polymeric material, and applying heat to the polymer fibers so that some of them become softened to the ex

A method for manufacturing a mineral fiber product includes establishing a stream of mineral fibers, directing polymeric fibers toward the stream of mineral fibers to cause intermingling of the polymeric material, and applying heat to the polymer fibers so that some of them become softened to the extent that they lose their fibrous form and become attached to the mineral fibers as non-fibrous particles, whereas some of the polymer fibers retain their fibrous form.

대표청구항 ▼

[ We claim:] [1.] A mineral fiber product comprising fibers composed of a polymeric material intermingled with mineral fibers which have non-fibrous particles of said polymeric material attached thereto, where the product is a uniform blend of mineral and polymeric fibers, and where the mineral fibe

[ We claim:] [1.] A mineral fiber product comprising fibers composed of a polymeric material intermingled with mineral fibers which have non-fibrous particles of said polymeric material attached thereto, where the product is a uniform blend of mineral and polymeric fibers, and where the mineral fiber product is made by the process comprising:a. forming mineral fibers from molten mineral material;b. establishing a stream of the mineral fibers;c. directing fibers of said polymeric material toward the stream of mineral fibers to cause intermingling of said polymeric material and the mineral fibers;d. applying heat from an annular burner to the polymeric fibers so that some of them become softened to the extent that they lose their fibrous form and become attached to the mineral fibers as polymeric, non-fibrous particles of said polymeric material, whereas some of the polymeric fibers retain their fibrous form; and,e. collecting the intermingled mineral fibers having non-fibrous particles of said polymeric material attached thereto and fibers of said polymeric material to form the mineral fiber product.