NON-WOVEN COMPOSITE LAMINATE Russian patent published in 2005 - IPC

FIELD: production of non-woven composite laminate.

SUBSTANCE: the invention is dealt with a non-woven laminate, which is not exposed to a final fastening by a binding agent, and with production of the non-woven laminate. The laminate includes, at least, one mat of the non-woven fabric containing a staple glass fiber previously fastened by a resin, and at least one layer of a non-woven fabric made out of synthetic fibers. Layers of a synthetic non-woven fabric and the previously fastened mat of the non-woven fabric containing glass-fibers are joint together by sewing across so, that a part of filaments of the upper layer of the synthetic non-woven fabric passes through the mat of the non-woven fabric containing glass-fibers possibly through a laying in the base layer of the synthetic non-woven fabric. The synthetic fibers are subjected to thermal shrinkage and the laminate does not contain a binding agent. The non-woven laminate is produced strong, flexible and well delaminating. It may be used as the roll roofing materials in processes of welding and cast molding.

EFFECT: the invention ensures, that produced non-woven laminate is strong, flexible and well delaminating and may be used as the roll roofing materials.

39 cl, 1 tbl, 3 ex