The present disclosure refers to a cork yarn, in particular a yarn with incorporated cork, textile structures comprising said yarn, obtention method and uses thereof.

The cork yarn described in the present disclosure is useful to the textile and clothing industry, and can be applied extensively in the textile industry namely in the manufacture of fabrics for clothing and home textiles, in particular technical clothing, duvets, blankets, covers, etc.

A fluorine-free composition includes at least one polycarbodiimide compound derived from a carbodiimidization reaction of a carbodiimidization reaction mixture comprising at least one oligomer, wherein the oligomer comprises at least one isocyanate end group and at least two repeating units, wherein each of the at least two repeating units comprises at least one hydrocarbon group having at least 16 carbon atoms. The composition may also include at least one paraffin wax. Such compositions are useful for treating fibrous substrates to enhance their water-repellency.

A fluorine-free composition includes at least one polycarbodiimide compound derived from a carbodiimidization reaction of a carbodiimidization reaction mixture comprising at least one oligomer, wherein the oligomer comprises at least one isocyanate end group and at least two repeating units, wherein each of the at least two repeating units comprises at least one hydrocarbon group having at least 16 carbon atoms. The composition may also include at least one paraffin wax. Such compositions are useful for treating fibrous substrates to enhance their water-repellency.

An embodiment of the present invention provides a coating composition comprising a composite in which a dissociated natural polymer compound is bound onto at least a portion of the surface of acrylic polymer particles.

Provided are acoustic articles, and related methods, that include a porous layer and heterogeneous filler received in the porous layer. The heterogeneous filler can include clay, diatomaceous earth, graphite, glass bubbles, polymeric filler, non-layered silicate, plant-based filler, or a combination thereof, and can have a median particle size of from 1 micrometer to 1000 micrometers and a specific surface area of from 0.1 m.sup.2/g to 800 m.sup.2/g. The acoustic article can have an overall flow resistance of from 100 MKS Rayls to 8000 MKS Rayls. The acoustic articles can serve as acoustic absorbers, vibration dampers, and/or acoustic and thermal insulators.

Provided are acoustic articles, and related methods, that include a porous layer and heterogeneous filler received in the porous layer. The heterogeneous filler can include clay, diatomaceous earth, graphite, glass bubbles, polymeric filler, non-layered silicate, plant-based filler, or a combination thereof, and can have a median particle size of from 1 micrometer to 1000 micrometers and a specific surface area of from 0.1 m.sup.2/g to 800 m.sup.2/g. The acoustic article can have an overall flow resistance of from 100 MKS Rayls to 8000 MKS Rayls. The acoustic articles can serve as acoustic absorbers, vibration dampers, and/or acoustic and thermal insulators.

The present invention relates generally to compositions comprising polyelectrolytes complexes (PECs) of anionic and cationic biopolymers capable of forming barriers on fiber based materials. Also disclosed is a fibre based material with a barrier coating against oil and water, wherein the material is provided with a barrier from at least two layers formed from at least one composition comprising a polyelectrolyte complex (PEC) of a cationic biopolymer and an anionic biopolymer, The two layers result in improvements in both oil resistance and water resistance compared to the same material provided with a single layer of said at least one composition.

An aqueous polyelectrolyte (PEC) composition for application to a fibre based material for use in obtaining a barrier coating resistant to oil and water, comprises from 0.1 to 20% (w/w) of carboxymethyl cellulose (CMC) and from 0.1 to 20% of cationic starch (CS), providing PECs with a charge ratio of 1; from 1 to 20% (w/w) of a plasticizer; and from 1 to 15% (w/w) of a pH adjusting agent selected from an acid, a buffering system and a base.

A process, and the resultant product. for effectively binding plant-based materials to various fabrics to provide for antimicrobial effect of the fabric. The fabrics and methods will typically maintain microbial reduction characteristics even after repeated laundering.

A process, and the resultant product. for effectively binding plant-based materials to various fabrics to provide for antimicrobial effect of the fabric. The fabrics and methods will typically maintain microbial reduction characteristics even after repeated laundering.