The present invention relates to a biodegradable non-woven fabric, a method for producing a biodegradable non-woven fabric and a wipe. The biodegradable non-woven fabric comprises biodegradable fibers. At least a part of the biodegradable fibers is entangled with each other, such that individual biodegradable fibers are in contact with each other at entangling points. At least a part of the entangling points is provided with a biodegradable binder.

Binder compositions are described that include at least one formaldehyde-containing compound, a cyclic urea-dialdehyde compound, and a polyamine compound. The polyamine compound may be selected from melamine and dicyandiamide. The weight ratio of the at least one formaldehyde-containing compound to the combined weight of the cyclic urea-dialdehyde compound and the polyamine compound may be greater than or about 1:1. As described are binder-containing fiberglass products that include glass fibers and a binder. The binder may include a formaldehyde polymer characterized by crosslinking with a cyclic urea-dialdehyde and a polyamine. The binder-containing fiberglass products have reduced formaldehyde emissions.

Binder compositions are described that include at least one formaldehyde-containing compound, a cyclic urea-dialdehyde compound, and a polyamine compound. The polyamine compound may be selected from melamine and dicyandiamide. The weight ratio of the at least one formaldehyde-containing compound to the combined weight of the cyclic urea-dialdehyde compound and the polyamine compound may be greater than or about 1:1. As described are binder-containing fiberglass products that include glass fibers and a binder. The binder may include a formaldehyde polymer characterized by crosslinking with a cyclic urea-dialdehyde and a polyamine. The binder-containing fiberglass products have reduced formaldehyde emissions.

A non-woven fibrous mat is provided that includes a mixture of a thermoset resin and a thermoplastic resin. It has been found that the physical properties (e.g., flexibility, tensile strength) of a non-woven mat may be improved by formulating a binder composition comprising variable ratios of the thermoset material and the thermoplastic material. In this way, a bonded nonwoven mat may be achieved having a desirable combination of strength and flexibility, while maintaining good heat and water resistance.

A non-woven fibrous mat is provided that includes a mixture of a thermoset resin and a thermoplastic resin. It has been found that the physical properties (e.g., flexibility, tensile strength) of a non-woven mat may be improved by formulating a binder composition comprising variable ratios of the thermoset material and the thermoplastic material. In this way, a bonded nonwoven mat may be achieved having a desirable combination of strength and flexibility, while maintaining good heat and water resistance.

The disclosure provides basemats for fibrous panels, including a mineral wool present in an amount of at least about 60 wt %, based on the total weight of the basemat, a mineral filler, a cellulose present in an amount of about 1 wt % to about 3 wt %, based on the total weight of the basemat, and a binder. The basemat has a backing side and a facing side. Also provided are fibrous panels including the basemat of the disclosure and a porous veil.

The invention relates to the field of materials based on mineral fibers, in particular mineral wool such as glass wool or rock wool. More specifically, the present invention relates to a method and a device for recycling the water recovered in a fiberizing and shaping method when using a specific acid binder based on monomeric polycarboxylic acid, or a salt of such an acid.

Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×10.sup.6 Daltons to 10×10.sup.6 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×10.sup.6 Daltons to 10×10.sup.6 Daltons, and a polycarboxylic acid.

Fiber-containing composites are described that include woven or non-woven fibers, and a binder that holds the fibers together. The binder may include the reaction product of a starch and a polycarboxylic acid. The starch has a weight average molecular weight that ranges from 1×10.sup.6 Daltons to 10×10.sup.6 Daltons. The fiber-containing composite has an unaged tensile strength of greater than 4.0 and an aged tensile strength greater than 3.0. Also described are methods of making the fiber-containing composites. The methods may include applying a binder composition to fibers to form coated fibers, measuring a moisture content of the coated fibers, and curing the coated fibers in a curing oven to form the fiber-containing composite. The binder composition may include a starch having a weight average molecular weight that ranges from 1×10.sup.6 Daltons to 10×10.sup.6 Daltons, and a polycarboxylic acid.

A binder composition for use in the manufacture of a nonwoven mat including a low-density fiber, and nonwoven mats made with the binder, are disclosed. The low-density fiber is able to reduce the acoustic openness of the nonwoven mats made therefrom while also capable of being delivered with existing binder technology and equipment.