Abstract: Melt blended fibers of lactam-polyol-polyacyl lactam or acyl polylactam terpolymers together with polyesters are thermally bonded at temperatures below the bonding temperatures of either the crystalline polyester or the terpolymer, resulting in thermally stable fabrics that have bond strength greater than the individual polyester or terpolymer webs bonded at the same temperature.

Abstract: The present invention relates to non-woven fabrics characterized by excellent drapeability, very pleasant handle and good tensile properties. The fabrics are made from melt blends of a polyamide together with lactam-polyol-polyacyl lactam or acyl-polylactam terpolymers.The production of the non-woven webs or fabrics from melt blended fibers of polyamide with lactam-polyol-polyacyl lactam or acyl-polylactam terpolymers is achieved by contact or thermal bonding of melt spun fibers. In one embodiment of the invention, the webs are formed from fibers in the nascent condition as freshly extruded, e.g., they are substantially amorphous. Such amorphous fibers are readily bonded even at room temperature, resulting in autogenous self-bonding, with only little pressure being imposed. If desired these fibers may be bonded at temperatures of up to 210.degree. C.

Abstract: The production of compatible polymeric compositions, fibers and nonwoven webs from three-component blends of a polyamide, a polyester, and a terpolymer of lactam-polyolpolyacyl lactam or lactam-polyol-acyl-polylactam is described in the present patent application.The products of this invention are characterized by having well balanced properties such as dimensional stability to moisture, moisture transport properties, antistatic and tensile properties. The compatible polymeric compositions of the invention are useful in general textile applications such as fibers, woven and nonwoven fabrics, apparel, carpeting, draperies and various industrial forms e.g. articles such as films.

Abstract: Melt blended shaped objects, fibers and fabrics of polyesters with lactam-polyol-polyacyl lactam or -acyl polylactam terpolymers have desirable anti-static properties with the improvement resulting from the presence of the polyol content of the said terpolymer. Such fibers are useful for carpeting, draperies, apparel and nonwoven fabrics.