Abstract:
The present invention relates to the field of composite structures, overmolded composites structures and processes for their preparation, particularly it relates to the field of polyamide composite structures. The disclosed composite structures have a surface, which surface has at least a portion made of a surface polyamide resin composition, and comprise a fibrous material selected from non-woven structures, textiles, fibrous battings and combinations thereof, said fibrous material being impregnated with a matrix resin composition, wherein the matrix polyamide resin composition and the surface resin composition is selected from polyamide compositions comprising a blend of (A) one or more fully aliphatic polyamides selected from group (I) polyamides, and (B) one or more semiaromatic polyamides selected from group (II) polyamides having a melting point of at least 280°C.
Abstract:
The present invention relates to the field of overmolded composites structures and processes for their preparation, particularly it relates to the field of overmolded polyamide composite structures. The disclosed overmolded composite structures comprise i) a first component having a surface, which surface has at least a portion made of a surface resin composition, and comprising a fibrous material selected from non-woven structures, textiles, fibrous battings and combinations thereof, said fibrous material being impregnated with a matrix resin composition, ii) a second component comprising an overmolding resin composition, wherein said second component is adhered to said first component over at least a portion of the surface of said first component, and wherein the surface resin composition is selected from polyamide compositions comprising a blend of two or more fully aliphatic polyamides having a melting point of at least 250°C and wherein the matrix resin composition is selected from polyamide compositions comprising a one or more fully aliphatic polyamides having a melting point of at least 250°C.
Abstract:
The present invention relates to the field of composite structures and processes for making them, particularly it relates to the field of heat resistant polyamide composite structures. The composite structure has a surface having at least a portion made of a surface resin composition and comprises a fibrous material selected from non-woven structures, textiles, fibrous battings and combinations thereof, which is impregnated with a matrix resin composition. The surface resin composition and the matrix resin composition are made of a polyamide composition comprising a) one or more polyamide resins selected from semi-aromatic polyamide resins and b) one or more polyhydric alcohols having more than two hydroxyl groups.
Abstract:
The present invention provides a fabric and a fabric structure made of yarns with reduced water absorption. The fabric comprises yarns and interstices between the yarns, the interstices between the yarns having an average width of greater than 100μm. At least one of the yarns is comprised of multiple fibers. Said at least one yarn has voids between the fibers wherein the voids are filled up with a polymer material. The interstices remain open and the size of the interstices is the same as before the treatment. The filling of the voids between the fibers with the polymer material prevents the absorption of water into said voids and therefore leads to reduced water absorption of the fabric. The polymer material is substantially only located within the voids of the yarn and has embedded the fibers within the outer surface of said yarn.
Abstract:
The present invention relates to ferromagnetic materials based on nano-sized bacterial cellulose templates. More specifically, the present invention provides an agglomerate free magnetic nanoparticle cellulose material and a method of forming such magnetic nanoparticle cellulose material. Further, the magnetic nonoparticles are physically attached on the cellulose material and evenly distribute.
Abstract:
A polymeric dispersion in aqueous phase for use as a polymeric binder for paper and other nonwoven articles is described utilizing a polyisocyanate in combination with said polymeric binder to increase the ratio wet tensile/dry tensile strength. The polyisocyanate seems to be functioning by increasing the fiber to binder interaction rather than by simply increasing the strength/crosslink density of the binder. The polyisocyanate can be blocked isocyanate(s) or water dispersible isocyanate(s). The binder may or may not have isocyanate reactive species along the backbone.
Abstract:
Die Erfindung betrifft eine Nahrungsmittelhülle mit textilem Trägermaterial, das mit einer Schicht aus regenerierter oder gefällter Cellulose überzogen wurde. In dieser Hülle sind die Eigenschaften eines Textildarmes mit denen eines Cellulose-Faserdarms kombiniert. Neben der von den Textildärmen bekannten und geschätzten Oberflächenstruktur weist sie auch die Transparenz und die Barriereeigenschaften, d.h. Durchlässigkeit für Wasserdampf, Sauerstoff und Rauchbestandteile, eines Cellulose-Faserdarms auf. Gleichzeitig ist die Hülle fettdicht. Sie wird bevorzugt als künstliche Wursthülle eingesetzt.
Abstract:
Provided is a photo-curable type of orthopedic fixing material which can achieve a required strength by a visible light in a short time. A photo-curable resin which comprises a urethane (meth)acrylate oligomer having a structure represented by the formula (I), wherein A represents a diisocyante residue, and each of X and Y represents a (meth)acrylate residue having a hydroxyl group, and a photopolymerization initiator absorbing a light having a wave length of 400 to 700 nm is provided. The photo-curable resin (4) is held on a base material (3), to form a support material(5). The inside of the support material (5) is covered by a cushioning material (6) and the outside thereof is covered by a covering material (2), to prepare a splinting material (1) as an orthopedic fixing material. The cushioning material (6) side is applied to an affected part, a bandage is wound thereon, and the resulting package is subjected to molding with the irradiation of a visible light thereto. As a curing reaction proceeds, a splint is formed and the affected part can be fixed.
Abstract:
A nano technology process for the manufacture of a fabric that comprises fibers, such as man-made fibers, cotton fibers or cellulose fibers, which are essentially hydrophilic, with improved moisture-management performance, in which the fibers are individually encapsulated with a nano chemistry water-repellant surface.