Abstract: There is described a thermally stable, binder-consolidated spunbonded web formed from load-carrying filaments and binder filaments where the melting point of the binder filaments is less than 30.degree. C below that of the load-carrying filaments.The binder and the load-carrying filaments are preferably made of polyesters. The basis weight of the spunbonded web is within the range between 50 and 500 g/m.sup.2, the denier of the load-carrying and the binder filaments is within the range between 1 and 20 dtex, and the proportion of binder filament is between 5 and 25 percent by weight. The web has a particularly high thermal resistance, i.e. a particularly high resistance to high downstream processing temperatures. It is usable for example as a support material for roofing membranes and as a tufting support and so on.

Abstract: A spun-bonded fabric consolidated by a hot-melt binder, composed of polyester filaments and of polyester binder filaments serving as the hot-melt binder is described. The weight per unit area of the spun-bonded fabric is in the range between 20 and 120 g/m.sup.2, the individual titer of the load-bearing filaments and of the binder filaments is in the range between 1 and 7 dtex, and the proportion of the binder filaments is less than 10 percent by weight. This is a lightweight spun-bonded fabric which is distinguished by a particularly high dynamic capability, i.e. a particularly high resistance to alternating stresses. The lightweight spun-bonded fabric can be used, for example, as a reinforcement for shoes and garments, as a carrier material for curtains and blinds, as seat covering, filter material, and the like.

Abstract: Polyester monofilaments having very high strength and low elongation also at elevated temperature and being resistant against tire rubber are obtained from polyesters having an intrinsic viscosity of more than 0.67 and terminal carboxy groups of less than 25 milliequivalents/kg by spinning into a water bath, a first drawing in a water bath having a temperature of from 70.degree. to 100.degree. C in a ratio of from 1 : 4.0 to 1 : 6.0, a second drawing at a temperature being a maximum 15.degree. C below the melting point to attain a total drawing ratio of from 1 : 6.0 to 1 : 7.5, and subsequent setting at a temperature being a maximum 15.degree. C below the melting point without allowing a shrinkage.

Abstract: Polyester monofilaments having very high strength and low elongation also at elevated temperature and being resistant against tire rubber are obtained from polyesters having an intrinsic viscosity of more than 0.67 and terminal carboxy groups of less than 25 milliequivalents/kg by spinning into a water bath, a first drawing in a water bath having a temperature of from 70.degree. to 100.degree. C in a ratio of from 1 : 4.0 to 1 : 6.0, a second drawing at a temperature being a maximum 15.degree. C below the melting point to attain a total drawing ratio of from 1 : 6.0 to 1 : 7.5, and subsequent setting at a temperature being a maximum 15.degree. C below the melting point without allowing a shrinkage.