A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.

A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.

The invention relates to a method for manufacturing water treated man-made vitreous fibres (MMVF) comprising:

a. providing a mineral melt,

b. providing a fiberizing apparatus,

c. fiberizing the mineral melt to form man-made vitreous fibres (MMVF),

d. collecting the MMVF, and thereafter

e. applying about 0.1 wt % to about 1 wt % water, based on the weight of the MMVF, to the MMVF to form water treated MMVF.

The invention relates to a method for manufacturing water treated man-made vitreous fibres (MMVF) comprising:

a. providing a mineral melt,

b. providing a fiberizing apparatus,

c. fiberizing the mineral melt to form man-made vitreous fibres (MMVF),

d. collecting the MMVF, and thereafter

e. applying about 0.1 wt % to about 1 wt % water, based on the weight of the MMVF, to the MMVF to form water treated MMVF.

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided.

A method of growing plants in a coherent growth substrate product is provided and includes: providing at least one coherent growth substrate product comprising man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition; positioning one or more seeds, seedlings, cuttings or plants in contact with the growth substrate product; and irrigating the growth substrate product. The aqueous binder composition prior to curing includes a component (i) in the form of one or more oxidized lignins, a component (ii) in the form of one or more cross-linkers, and a component (iii) in the form of one or more plasticizers.

An insulation product is disclosed that includes a plurality of glass fibers and a cross-linked formaldehyde-free binder composition at least partially coating the glass fibers. The glass fibers have an average fiber diameter in the range of 8 HT (2.03 μm) to 15 HT (3.81 μm). The insulation product is structured such that at least 30% by weight of the glass fibers in the insulation product are oriented within +/−15° of a common plane defined by a length and width of the insulation product. The insulation product has a density, when uncompressed, between 0.2 pcf and 1.6 pcf.

An uncoated nonwoven fibrous mat having a reduced air porosity is disclosed comprising a first plurality of fibers having a length between about 10 mm and 20 mm and an average diameter between about 9 μm and 15 μm; a second plurality of fibers having a length between about 3 mm and 8 mm and an average diameter between about 5 μm and 8 μm; and a binder composition. The uncoated nonwoven fibrous mat has an air porosity less than about 550 CFM.

An uncoated nonwoven fibrous mat having a reduced air porosity is disclosed comprising a first plurality of fibers having a length between about 10 mm and 20 mm and an average diameter between about 9 μm and 15 μm; a second plurality of fibers having a length between about 3 mm and 8 mm and an average diameter between about 5 μm and 8 μm; and a binder composition. The uncoated nonwoven fibrous mat has an air porosity less than about 550 CFM.

A cross-linked nonwoven fibrous mat is disclosed comprising a core layer including a fibrous precursor mat bound with a formaldehyde-free core binder composition and a cross-linker disposed on at least one surface of the core layer, said cross-linker comprising one or more of isocyanate, polyol, and melamine functional groups. The cross-linked nonwoven mat has a hot-wet retention of at least 25%.