Abstract: A synthetic leather is made by a impregnating a non-woven or woven textile with an aqueous polyurethane dispersion comprised of a nonionizable polyurethane and an external stabilizing surfactant. The impregnated textile is then exposed to water containing a coagulant for a coagulation time sufficient to coagulate the dispersion. The method may be used to form a synthetic leather having excellent wet ply adhesion and may contain an insoluble multivalent cation organic acid.

Abstract: A matrix of collagen is obtained through the method of electroprocessing. As a common natural polymer, collagen may be electroprocessed to form a matrix for multiple different applications.. The flexibility and variability of the processing allows the collagen matrix to be predesigned to meet many applications. These applications are included, but not limited to, biomedical applications, manufactured leather applications, food casing products, and footwear and clothing products.

Abstract: A stretchable laminate is formed by providing a hydroentangled nonwoven fabric exhibiting cross-direction extensibility and recovery, which fabric comprises a nonwoven web of staple length fibers of about 0.8 to 3.0 denier having a basis weight of about 1.0 to 4.0 ounces per square yard. A polymeric binder composition substantially uniformly applied to the nonwoven web imparts desired elasticity to the web, with the fabric exhibiting at least about 50% extensibility in a cross-direction thereof, and at least about 90% recovery in a cross-direction. The nonwoven web may comprise synthetic fibers, natural fibers, and blends thereof, as well as continuous filaments. An elastomeric composition comprising polyurethane or polyvinylchloride is applied to the extensible nonwoven fabric, which forms the stretchable laminate. The laminate provides a highly conformable and aesthetically pleasing leather-like product.

Abstract: A napped leather-like sheet material comprising an entangled nonwoven fabric composed of ultrafine fibers and an elastomer contained therein and having a nap made of ultrafine fibers on one or both sides thereof, which material is provided with a silk protein substance and a softening agent on the surface portion of the napped face or faces; and a method of producing the above napped leather-like sheet material which comprises applying a liquid containing a silk protein substance and a softening agent to the surface of a napped leather-like sheet material by, for example, a gravure printing or spraying technique.

Abstract: The present invention provides separate paper for a process which is to be used for producing synthetic leather and which is capable of preventing inclusion of bubbles generated at the time of application of a coating liquid for forming leather therein and providing normal patterns free from bubbles.

Abstract: A process for producing a non-woven composite fabric by water-jet entangling. First, at least two webs are formed. These at least two webs include at least one spunbonded web or meltblown web. Then, the at least two webs are consolidated by water-jet entangling into a non-woven composite fabric. Compared to a conventional process using thermal bonding to consolidate webs, since the present invention uses water-jet entangling to consolidate webs, the non-woven composite fabric produced from the present invention has superior softness. In addition, the non-woven composite fabric produced from the present invention can be further processed to produce various non-woven composite fabric products such as disposable diapers, sanitary napkins, panty liners, and artificial leather, all with superior softness.

Abstract: A nonwoven fabric made of filaments, which comprises filaments formed from a fiber-forming thermoplastic polymer and satisfies all of the following conditions (A) to (D). (A) The fiber bundles are present in a range of 5-70 per centimeter in any cross-section parallel to the direction of thickness of the nonwoven fabric. (B) The total area occupied by the fiber bundles is in a range of 5-70% of the cross-sectional area of any cross-section perpendicular to the direction of thickness of the nonwoven fabric. (C) The apparent density is 0.10-0.50 g/cm3. (D) The cut ends of the fibers on the nonwoven fabric surface are present in a range of 5-100 per mm2 of surface area.

Abstract: The present invention relates to a process for producing a woven textile-elastomer composite that, when transfer or film-coated, is suitable for use as an artificial leather substrate. The inventive procedure involves (a) producing an elastomer composition of at least four ingredients (an anionically-stabilized waterborne polymer dispersion, an acid-generating chemical, a cloud-point surfactant, and a foam-stabilizing surfactant); (b) incorporating sufficient gas into the liquid mixture to generate a spreadable foam; (c) applying the foam onto a porous woven textile substrate; (d) heating said foamed fabric until the elastomer coagulates over the fabric substrate; and (e) drying the resultant composite without destroying the coagulated structure. The resultant composite obtains a pliability, compressibility, and drape that is similar to that of leather and a surface that is suitable for transfer or film-coating to produce artificial leather.

Abstract: A mold releasable composite material for wet production of a polyurethane resin synthetic leather is disclosed, comprising of a polymer base and a composition layer laminated on at least one surface of the polymer base, the composition layer consisting of 50 to 95% by weight of a styrenic polymer having a syndiotactic structure and 5 to 50% by weight of a polyolefin, the mold releasable composite material having a peeling strength of 300 g/15 mm or more, preferably, the composition layer being subjected to embossing processing, and an anchor coating agent being used in laminating of the composition layer on the polymer base, which overcomes the defects involved in the conventional production process of a polyurethane resin synthetic leather in a wet process which has such an advantage that a synthetic leather having a good breathability and a soft feeling is obtained.

Abstract: Electroprocessed polymers are used to form specifically-shaped shoes, clothing or other related garments. A mandrel having a preselected shape is used as the target in the electroprocessing step. The resulting product has a polymer matrix of exactly the shape of the mandrel. In practice, a person's foot or other body part is used to create the predetermined shape.

Abstract: The present invention relates to a material having improved mechanical properties, clarity, processability and/or degradation resistance comprising a polyurethane elastomeric composition which includes a soft segment derived from at least one polysiloxane macrodiol and at least one polyether and/or polycarbonate macrodiol. This material can function as a degradation-resistant material or biomaterial and is particularly useful in the manufacture of medical devices, articles or implants which contact living tissue or bodily fluids. The present invention also provides a polyurethane elastomeric composition which includes a soft segment derived from at least one polysiloxane and at least one polyether and/or polycarbonate macrodiol and processes for its preparation.

Abstract: Synthetic leather includes a piece of backing cloth with all-direction stretchability located at one side of the synthetic leather, a surface skin located at another side of the synthetic leather, and an intermediate layer fixed between the backing cloth and the surface skin for providing thickness of the synthetic leather. The elongation property value of the backing cloth is more than 200% in all-direction. Thereby the synthetic leather of the present invention can concurrently have characteristics of high thickness, high softness and a fine-break surface.

Abstract: A protective layer which prevents marine fouling when attached to a boat hull or other structure intended to be submerged underwater. The protective layer achieves its anti-fouling characteristic by incorporating anti-fouling compounds uniformly dispersed throughout either a plastic film or an adhesive used to bond the film to a surface to be protected which slowly leach into the surrounding marine environment. The film is removably adhered to a boat hull or other structure by a thermally sensitive thermoplastic adhesive. The film may be removed by simply reheating until the adhesive softens to thereby allow the film and any undesired marine organisms attached thereon to be peeled away from the boat hull.

Abstract: Regarding the present inventions I to VII, an aqueous emulsion of ultraviolet-absorbing resin obtained by neutralizing a solution of an ultraviolet-absorbing resin (i), which is obtained by reacting a polyester polyol (A) having an ultraviolet-absorbing group, a compound (C) containing an ionic or a nonionic surface active group, an organic polyisocyanate (D), and a polyol (B) added according to need, in the presence of an organic solvent (s) if necessary, with a neutralizing agent (E), dispersing in water, and removing a solvent, has excellent compatibility with other resins such as an acrylic resin (iia) and/or an urethane resin (iiu), imparts excellent light resistance without impairing favorable properties of the other resin, can improve a compounding stability to an aqueous emulsion of the other resin, shows less bleedout of the ultraviolet-absorbing resin on a surface of a coating film obtained from the emulsion, imparts stable light resistance to the other resin over a long period of time, and can impa

Abstract: A non-woven fabric having such a structure that fine fibers having a small fineness are entangled with one another and a sheet obtained by impregnating the non-woven fabric with an elastic polymer satisfy the following requirements: the fine fibers should be obtained by splitting a strippable and splittable composite short fiber comprising at least two components; the fine fibers should have a monofilament size of 0.01 to 0.5 denier; the fine fibers should form a fine non-woven fabric structure that they are entangled with one another at random; the apparent density should be 0.18 to 0.

Abstract: An artificial leather sheet substrate comprising: a fiber entangled nonwoven fabric composed of bundles of a polyamide-based microfine fibers comprising a polyamide or a polyamide composition having a hot toluene swelling degree of 2 to 10%, and having a fineness of 0.1 decitex or less; and an elastic polymer and a releasing agent between the bundles, the releasing agent being also added to the inside of the bundles. This leather-like sheet substrate is soft and is excellent in denseness, dyeability and color fastness. The sheet is suitable, as a suede-like artificial leather or a grain surface like artificial leather, for fields for which high quality is required, for example, for clothing. The sheet is high in denseness of surface napped fiber and is excellent in hand touch, writing effect and draping ability, especially as a suede-like artificial leather.

Abstract: A leather-like sheet material comprising a substrate layer composed of an entangled nonwoven fabric consisting of ultrafine fibers and an elastic polymer or elastomer filled therein and having, on one side (side A) of the substrate layer, a grain layer comprising an elastomer mainly consisting of a polyurethane, wherein the ultrafine fibers (a) constituting the side A of the substrate layer have a mean fineness substantially within the range of 0.01 to 0.

Abstract: A leather-like sheet is prepared by impregnating a fibrous substrate, which may comprise a microfine fiber-forming fiber, with a thermally gellable composite resin emulsion obtained by emulsion-polymerizing an ethylenically unsaturated monomer (B) in the presence of a polyurethane emulsion (A) at a weight ratio of 90/10 to 10/90, solidifying the thermally gellable composite emulsion in the impregnated fibrous substrate, and if the fibrous substrate is a microfine fiber-forming fiber, converting the microfine fiber-forming fiber to a microfine fiber. After impregnation, the emulsion in the impregnated fibrous substrate is thermally solidified, thereby producing a leather-like sheet having excellent softness and fulfillment feeling, and good hand feel, feel and physical properties like that of natural leather. A film of the composite resin has a specific elastic modulus.

Abstract: A stretchable laminate is formed by providing a hydroentangled nonwoven fabric exhibiting cross-direction extensibility and recovery, which fabric comprises a nonwoven web of staple length fibers of about 0.8 to 3.0 denier having a basis weight of about 1.0 to 4.0 ounces per square yard. A polymeric binder composition substantially uniformly applied to the nonwoven web imparts desired elasticity to the web, with the fabric exhibiting at least about 50% extensibility in a cross-direction thereof, and at least about 90% recovery in a cross-direction. The nonwoven web may comprise synthetic fibers, natural fibers, and blends thereof, as well as continuous filaments. An elastomeric composition comprising polyurethane or polyvinylchloride is applied to the extensible nonwoven fabric, which forms the stretchable laminate. The laminate provides a highly conformable and aesthetically pleasing leather-like product.

Abstract: A leather-like sheet having naps on its surface and having writing effect, a high-class external appearance, hand touch and feel like natural leather, and folds like natural leather. When it is subjected to lasting shoemaking, it is possible to obtain shoes which have at its surface no unevenness and do not get out of shape. A leather-like sheet wherein the following fiber-entangled nonwoven fabrics (A) and (B) are stacked with an adhesive agent present in a discontinuous state: (A) a fiber-entangled nonwoven fabric containing an elastic polymer and comprising a microfine fiber (a) having a fineness of 0.1 denier or less, the surface opposite to its stacking surf ace being fluffed, and rupture elongations in the longitudinal and latitudinal directions thereof being 50% or more and 80% or more, respectively, and (B) a fiber-entangled nonwoven fabric containing an elastic polymer and comprising a microfine fiber (b) having a fineness of 0.

Abstract: Provided is a leatherlike sheet material which has a base material (I) comprising a nonwoven fabric (A) constituted with ultrafine-fiber bundles having single fineness of no greater than 0.2 de, a high molecular elastomer (B) and a high molecular elastomer (C), and in which a grained surface layer (II) comprising a high molecular elastomer (C)-constituted surface porous layer (D) and a surface finishing layer (E) is formed on at least one side of the surfaces of the base material (I), wherein the leatherlike sheet material is characterized in that the apparent density of the base material (I), the weight ratio of the nonwoven fabric (A) to the high molecular weight elastomer (B) and the high molecular elastomer (C) in the base material (I), the thickness of the grained surface layer (II), and the ratios of 20%-elongation load (&sgr;20)/5%-elongation load (&sgr;5) in the longitudinal direction and the transverse direction of the leatherlike sheet material satisfy their own specific ranges.

Abstract: A napped leather-like sheet material comprising an entangled nonwoven fabric composed of ultrafine fibers and an elastomer contained therein and having a nap made of ultrafine fibers on one or both sides thereof, which material is provided with a silk protein substance and a softening agent on the surface portion of the napped face or faces; and a method of producing the above napped leather-like sheet material which comprises applying a liquid containing a silk protein substance and a softening agent to the surface of a napped leather-like sheet material by, for example, a gravure printing or spraying technique.

Abstract: The present invention relates to an artificial leather having nap very little oriented on the surface and having short fibers densely, and hence having a good nubuck-like look and hand, and also relates to a production process thereof. The present invention provides an artificial leather having a nap surface of ultra-fine fibers at least on one side, which is formed by applying an elastic polymer to an ultra-fine fiber-entangled substrate, characterized by being 0.3 g/cm3 or more in the apparent density of the artificial leather, being 0.5 mm or less in the nap length, and being 25% or less in the R value obtained from the goniometric reflectance distribution measured with the nap surface rotated from 0 degree to 180 degrees using a goniophotometer.

Abstract: A novel pre-tannage system for leather comprises treating the pelt or hide with a zeolite material in a first pre-tannage step and thereafter treating the pelt or hide with one or more modified aldehyde tanning agents. In this condition the pelt or hide is suitable for a number of different tanning steps namely chrome tannage, vegetable tannage, synthetic tannage or a combination of these.

Abstract: A mold releasable composite material for wet production of a polyurethane resin synthetic leather is disclosed, comprising of a polymer base and a composition layer laminated on at least one surface of the polymer base, the composition layer consisting of 50 to 95% by weight of a styrenic polymer having a syndiotactic structure and 5 to 50% by weight of a polyolefin, the mold releasable composite material having a peeling strength of 300 g/15 mm or more, preferably, the composition layer being subjected to embossing processing, and an anchor coating agent being used in laminating of the composition layer on the polymer base, which overcomes the defects involved in the conventional production process of a polyurethane resin synthetic leather in a wet process which has such an advantage that a synthetic leather having a good breathability and a soft feeling is obtained.

Abstract: An artificial leather strip, and methods of making such a strip. The synthetic leather strip is suitable for sporting applications such as lacing baseball gloves and shoes. The strip comprises at least one reinforcing cord embedded in a matrix. The matrix comprises PVC and additives such as nitrile rubber and/or urethane, and is sufficiently tough to resist the “cheesecutter” effect when the strip is flexed, for example by being tied in a knot.

Abstract: A high specific strength, light-weight, low elongation, high peeling strength and burst strength imitation leather with suede hand touch or embossed pattern suitable for manufacturing of gloves, garments, shoes, bags, wallets, couches, seat cover, suitcases, balls and the like, by mixing an adhesion fiber with regular fiber or microfiber to mechanically form nonwoven, then filled with PU composition to become the base material, the surface of the base material is either ground, embossed or bound with a release paper to be coated with PU epoxy composition, or at lease one PU layer with micro-pores is applied on the surface of the base material before the grinding, embossing, or binding.

Abstract: This invention discloses an improved structure of a synthetic leather. The synthetic leather of the present invention includes a piece of backing cloth with all-direction stretchability located at one end of the synthetic leather, a surface skin located at another end of the synthetic leather, and an intermediate layer fixed between the backing cloth and the surface skin for providing thickness of the synthetic leather. Thereby the synthetic leather of the present invention can concurrently have characteristics of high thickness, high softness and a fine-break surface.

Abstract: A nonwoven fabric made of filaments, which comprises filaments formed from a fiber-forming thermoplastic polymer and satisfies all of the following conditions (A) to (D).

Abstract: The present invention relates to a material having improved mechanical properties, clarity, processability and/or degradation resistance comprising a polyurethane elastomeric composition which includes a soft segment derived from at least one polysiloxane macrodiol and at least one polyether and/or polycarbonate macrodiol. This material can function as a degradation resistant material or biomaterial and is particularly useful in the manufacture of medical devices, articles or implants which contact living tissues or bodily fluids. The present invention also provides a polyurethane elastomeric composition which includes a soft segment derived from about 60 to 98 wt % of at least one polysiloxane macrodiol and about 2 to 40 wt % of at least one polyether and/or polycarbonate macrodiol and processes for its preparation.

Abstract: A release sheet according to the invention comprises a base release sheet, which is a laminate of a base material and a release resin layer, and a design printed sheet which can be stacked releasably on the base material of the base release sheet. Said design printed sheet have a base sheet and a convex image layer with the desired pattern positioned on the one side of the base sheet. In the release sheet according to the invention, the base release sheet may be used repeatedly and only the design printed sheet may be replaced with another one having the desired convex image layer. The use of such a release sheet makes it possible to prepare synthetic leather in various kinds and small lots.

Abstract: The present invention relates to a nonwoven fabric exhibiting dense, delicate, high quality appearance, and also relates to man made leathers exhibiting dense, delicate, high quality appearance, and bearing a resemblance to high quality natural leathers.

Abstract: One embodiment of the invention relates to a laminated sheet material, including, in order:

Abstract: A reconstituted leather product and process for making. The reconstituted leather product can be finished to have the look and feel of real leather and physical properties equivalent thereto. The process is essentially dry and involves reducing leather materials to fibers, preferably not longer than one inch. The process further involves blending these fibers with synthetic fibers, a resin and optionally other additives, forming the mixture into a mat, curing the mat and pressing the mat into a reconstituted leather product.

Abstract: A calenderable thermoplastic polymer alloy composition made by blending ethylene/alkyl (meth)acrylate with a blend of polypropylene, ethylene copolymer ionomer resin, ethylene/glycidyl acrylate or methacrylate copolymer, and uncrosslinked ethylene propylene rubber.

Abstract: The invention relates to an antistatic resin molded article which comprises a thermoplastic resin substrate and an antistatic resin layer applied to the surface of the resin substrate. The antistatic resin layer is formed of a coating layer produced by dispersing conductive and extremely fine carbon long-fibers in the thermoplastic resin thereby holding the antistatic properties and enabling thermoforming. As the extremely fine carbon fiber, a pilled fiber aggregate composed of fibers with a fiber diameter of 3.5 to 500 nm and an aspect ratio of 100 to 3000 or an agglomerate in which the aggregates are agglomerated is used.

Abstract: A compounded and plasticized vinyl chloride polymer layer, optionally supported with a fabric, contains an outer adherent, stain resistant layer having durability and flexibility. The adherent, stain resistant layer is derived from a water-based polyester-amino resin composition. The stain resistant layer comprises the reaction product of said polyester, an acid catalyst, and an amino resin. The vinyl chloride layer may be printed or embossed or both printed and embossed, optionally printed again, before the outer layer is applied. A laminate formed from the polyvinyl chloride polymer layer and the stain resistant layer can also be embossed.

Abstract: A microporous sheet suitably used as a substrate for artificial leather for its good balance in properties such as softness, abrasion resistance and the like, obtained by impregnating a non-woven fabric with an elastic polymer and then coagulating the impregnated polymer, said non-woven fabric being a blend of (a) an aromatic polyester fiber (fiber A) and (b) a polyolefin or aliphatic polyamide fiber (fiber B), which sheet is scattered with portions where the fiber A is surrounded by the elastic polymer in a bonded state and portions where the fiber B is surrounded by the elastic polymer in a not-bonded state.

Abstract: An ultraviolet-curable adhesive composition which comprises (A) a bisphenol type epoxy (meth)acrylate having a molecular weight of 450 to 3,000, (B) a urethane (meth)acrylate having a molecular weight of 400 to 10,000, (E) a (meth)acrylate monomer other than (A) and (B), and (F) a photopolymerization initiator, and an article having a cured layer of the above adhesive composition.

Abstract: A method of reforming the surface of a plastic article to provide a leather-like touch to the plastic article surface. In this method, a two-liquid type polyurethane paint is prepared and coated on the surface of the plastic article so as to form a coated film having a thickness ranging from 20 to 150 micrometers and having an elongation percentage ranging from 60 to 180% at 20.degree. C., a coefficient of friction ranging from 0.5 to 0.8, and an initial modulus of elasticity ranging from 60 to 150 kg/cm.sup.2.

Abstract: Hollow polyester fibers having a thickness of 0.11 to 8.89 d tex (0.1 to 8.0 denier), a hollow volume (a cross-sectional area ratio of hollow to fiber) of 40 to 85%, and a crystallization degree of 20% or more and crystal size in (0 1 0) plane of 4 nm or more of polyester, has a high resistance to compression and a high recovery from compression and are useful for producing woven and knitted fabric having a high durability, pile sheet materials having high resistance to and recovery from pile prostration, and nonwoven fabrics and artificial leather materials having a high resistance and recovery from compression.

Abstract: To provide a non-impregnated type substrate useful as a base fabric for artificial leather, which is superior in leather-like handle, air permeability and lightness properties; and an artificial leather made therefrom. A non-impregnated type substrate useful as a base fabric for artificial leather, which is a fiber assembly constituted by matrix fibers and binder fibers having an elastic polymer arranged on the surface thereof, the binder fibers being dispersed in and head-bonded to the matrix fibers, wherein the elastic polymers are contained within a specified amount, the bonds between binder fibers and matrix fibers by the elastic polymer are formed within specified proportions and with particular configurations, and the substrate has a density of 0.15 to 0.45 g/cm.sup.3.

Abstract: A reconstituted leather product and process for making. The reconstituted leather product can be finished to have the look and feel of real leather and physical properties equivalent thereto. The process is essentially dry and involves reducing leather materials to fibers, preferably not longer than one inch. The process further involves blending these fibers with synthetic fibers, a resin and optionally other additives, forming the mixture into a mat, curing the mat and pressing the mat into a reconstituted leather product.

Abstract: Disclosed are a surface skin-covered molded cushioning material which comprises a base material 1 having a main body the surface of which is covered with a surface skin material 4 via a cushion layer 3, wherein the main body of the base material and the surface skin material comprise a material which does not permit flowing of foamed gas generated at the time of forming the cushion layer and flowing of a synthetic resin material for forming the cushion layer; a sealing material 2 comprising a material which permits flowing of the foamed gas and does not permit flowing of the synthetic resin material is arranged at the circumferential portion of the main body of the base material; and the circumferential portion of the surface skin material covers the sealing material and also reaches the circumferential portion of the back face of the main body of the base material, and a process for producing the same.

Abstract: A sheet-like composite material which is obtained by coating or impregnating a fibrous base material with an elastic polymeric substance, in which the fibers constituting the fibrous base material and the elastic polymeric substance are prevented from bonding with each other, and which is extremely flexible and has excellent wear resistance and an extremely high peel strength, which material may be produced for example by applying a hydrophobicizing treatment to the fibrous base material, then impregnating or coating a solution of the elastic polymeric substance to which a hydrophilic silicone has been added, and wet solidifying.

Abstract: Disclosed are thermoplastic polyurethanes obtainable by reacting (a) a polyester-polyol that satisfies all the following requirements (1) to (4):(1) its ester group content (number of ester bonds/number of all carbon atoms) is from 0.08 to 0.17;(2) it has hydroxyl groups of from 2.01 to 2.08 per one molecule;(3) it has a number average molecular weight of from 1000 to 7000; and(4) it has a crystallization enthalpy (.DELTA.H) of 70 J/g or less,(b) an organic diisocyanate and (c) a chain extender at a ratio that satisfies the following numerical formula (i):1.00.ltoreq.b/(a+c).ltoreq.1.

Abstract: A composite product comprising an imitation leather microfibrous fabric and an impermeable polymer film coupled thereto by an adhesive material, said impermeable film being so selected that it will adhere as a coating on a polymeric plastic article manufactured in a mold by the cold injection molding technique at the time of the injection molding operations for preparing said polymeric plastic article when the composite product is present in the mold fitted to the inside surface of the mold and the impermeable polymer film side of the composite product faces the interior of the mold while preventing passage of the injected polymeric plastic through the imitation leather microfibrous fabric and the molded article coated with the composite product.

Abstract: There is provided a printing blanket having no seam in the circumferential direction thereof, which realizes high quality of printings in a wide range from normal printing to high, speed printing, and which has high strength to facilitate the handling and prolonged life, thus enabling the reuse of the sleeve and the like.Specifically, on the peripheral surface of the cylindrical sleeve 21, the base layer 1, the compressible layer 2, the non-stretchable layer 3 and the surface printing layer 4 are laminated by interposing the adhesive layers 31, 32, 33 and 34, respectively. All of the above layers comprise a seamless elastomer. The non-stretchable layer 3 is prepared by winding a wire rod in helical fashion.

Abstract: An improved composite sheet suited for use as artificial leather is prepared by treating with an elastomeric resin a fabric having an interior yarn network and an outer layer of well separated fibers that loop in and out of the yarn network. The resin completely or partially impregnates the outer layer.

Abstract: A polyurethane composition suitable for producing leather-like sheets having a soft hand and excellent durability and being dyeable with acid dyes comprising a mixture of:a first polyurethane (a) obtained by reacting:an intermediate product diol (D) with both ends thereof substantially being OH and obtained by reacting a tertiary amino group-containing diol (A), a polymer diol (B) having a number average molecular weight of 500 to 3,000 selected from the group consisting of polyesters, polycarbonates, polylactones and polyethers and an organic diisocyanate (C1), in such stoichiometric amounts as to make the molar ratio of NCO/OH 0.5 to 0.