D06N2209/1642

Biobased aqueous polyurethane dispersions

An aqueous polyurethane dispersion includes particles of polyurethane in water, wherein the polyurethane is derived from an organic diisocyanate, a hydrophilic monomer, a neutralizer, a chain extender, and a polyester resin, the polyester resin being a random copolymer having randomly distributed subunits of formula 1: ##STR00001##
where: R is ethylene, octylene, or decylene, a is from about 40 to about 100 mole % of the polyester resin, b is from 0 to about 30 mole % of the polyester resin, c is from 0 to about 30 mole % of the polyester resin, and a+b+c=100 mole % of the polyester resin.

SOFT SOLVENT-FREE FLAME-RETARDANT POLYURETHANE SYNTHETIC LEATHER AND PREPARATION METHOD THEREFOR

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight.

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight. The polyurethane synthetic leather prepared by the present invention has daily life antifouling properties, a good durability, is soft to the touch, is strongly skin-friendly, and has a very superior flame-retardant performance, and also has excellent antifouling, scratch resistance and flexure resistance properties; the production process is simple, efficient and environmentally friendly and same can satisfy market demands.

Soft solvent-free flame-retardant polyurethane synthetic leather and preparation method therefor

Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of —NCO in the isocyanate to —OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight.

Artificial leather and method of manufacturing the same
11421381 · 2022-08-23 · ·

The present invention relates to artificial leather and a method of manufacturing the same. More particularly, the present invention relates to artificial leather for automobile seat covers, the artificial leather having a texture similar to that of natural leather, having a soft feel like natural leather, and having excellent peel strength and a method of manufacturing the artificial leather.

Textiles having a protective function against abrasion and contact heat

The invention relates to a textile sheet product. According to the invention, said textile sheet product is characterized by a plurality of coating elements, which are arranged on a surface of a textile substrate layer of the sheet product in such a way that only part of the surface of the substrate layer is covered by the coating elements. The coating elements are made of a material that substantially is a mixture of a polymer material, preferably a prepolymer that can be crosslinked to form a thermoset, and a filler in the form of inorganic and/or metal particles. In a method according to the invention for producing a textile sheet product, a textile substrate layer and a coating material are provided. In order to form coating elements, a plurality of portions of the coating material are applied to a surface of the substrate layer. The portions of the coating material are arranged on the surface in such a way that the portions do not overlap, and only part of the surface of the substrate layer is covered by the coating material. Subsequently, the coating material is fixed, whereby a plurality of solid coating elements is formed on the substrate layer.

Polyurethane dispersions of low hardness

The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.

ARTIFICIAL LEATHER AND METHOD OF MANUFACTURING THE SAME
20200190731 · 2020-06-18 ·

The present invention relates to artificial leather and a method of manufacturing the same. More particularly, the present invention relates to artificial leather for automobile seat covers, the artificial leather having a texture similar to that of natural leather, having a soft feel like natural leather, and having excellent peel strength and a method of manufacturing the artificial leather.

POLYURETHANE DISPERSIONS OF LOW HARDNESS
20190225738 · 2019-07-25 ·

The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.

SYNTHETIC LEATHER
20240199864 · 2024-06-20 ·

An article is provided and includes (A) a top layer composed of a composition composed of (i) from 70 wt % to 88 wt % of an ethylene-based polymer, and (ii) from 12 wt % to 30 wt % of an oil, based on the total weight of the top layer. The article further includes (B) a bottom layer composed of a textile.