摘要:
Composite materials having favorable acoustic and vibration damping properties, while maintaining or improving other composite mechanical properties, include an interleaf layer comprising at least two different nonwoven materials in a specific sequence such that a gradient is formed in the z direction upon curing or an interleaf with a compositional gradient within its structure such that a resin interpenetration gradient is achieved upon curing. Composite materials that contain multilayered nonwoven interleaves are useful, for example, in structures found in aircrafts, such as fuselage skins, stringers and frames. Also contemplated are methods of making the composite material and the structures and aircrafts that contain the composite material.
摘要:
A decorative or building product in which one or more constituents of the product include melamine cyanurate in an amount effective to provide or enhance opacity in the product.
摘要:
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.
摘要:
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.
摘要:
A ballistic-resistant laminate assembly having a pair of films with an array of stacked pairs of first and second of unidirectionally-oriented bundles of high strength filaments therebetween, with the stacked filament bundles being arranged substantially interlinear with adjacent unidirectionally-oriented adhesions between the pair of films. The adhesions form continuous tubular sleeves between the pair of films with the stacked bundles of high strength filaments being substantially free floating yet contained therein. Optionally, the high strength filaments are coated or soaked in a liquid-to-solid phase change material or PCM.
摘要:
A method for coating a fire-resistant substance onto a carrier veil and products containing fire-resistant substances are provided. The method includes delivering a pliable carrier veil in a traveling web, drawing the carrier veil web through a reservoir defined by a nip of two rollers and containing the fire-resistant substance, where the carrier veil is coated with the fire-resistant substance. The method also includes controlling the amount of fire-resistant substance on the carrier veil web by setting a nip dimension between the two rollers, passing the carrier veil through the nip of the two rollers and providing the fire-resistant substance as a slurry suitable to coat the veil exiting the nip with a layer effective to provide a selected fire resistance. Heat is applied to the carrier veil sufficient to accelerate a curing reaction in the fire-resistant substance. A fire-resistant product includes a glass-based web, and a magnesium oxychloride complex materially coupled to the web, where the complex includes: MgCl2-mMg(OH)2-nH2θ; where m is between about 3 and about 7, and n is between about 6 and about 10.
摘要:
Die Erfindung betrifft verbesserte feuchtigkeitsregulierende Verbundstoffe, umfassend ein flächiges Trägermaterial, eine wasserlösliche hygroskopische Substanz und ein in Gegenwart der hygroskopischen Substanz auf das Trägermaterial aufpolymerisiertes wasserabsorbierendes Polymer, das einen Weichmacher enthält, Verfahren zu ihrer Herstellung sowie deren Verwendung zur Feuchtigkeitsregulierung.
摘要:
Die Erfindung betrifft ein textiles Flächengebilde mit einer Beschichtung aus zwei übereinanderliegenden Schichten aus thermoplastischen Heißsiegelklebern unterschiedlicher Zusammensetzung, wobei der auf den ersten Heißsiegelkleber aufgetragene zweite Heißsiegelkleber einen Schmelzpunkt > 135°C und einen Melt-Flow-Index (MFI)-Wert von 50 bis 250 g/10 Minuten (190°C /2,16 kg) aufweist. Die Erfindung betrifft auch ein Verfahren zur Herstellung eines textilen Flächengebildes umfassend die Schritte: a) Herstellung eines textilen Flächengebildes durch eine textile Flächenbildungstechnik, b) Auftragen einer Schicht eines ersten Heißsiegelklebers auf das textile Flächengebilde und c) Auftragen einer Schicht eines zweiten Heißsiegelklebers auf das textile Flächengebilde, so dass sich eine d) Schicht aus dem zweiten Heißsiegelkleber über der Schicht des ersten Heißsiegelklebers ausbildet, wobei als zweiter Heißsiegelkleber ein solcher mit Schmelzpunkt > 135°C und Melt- Flow-Index (MFI)-Wert von 50 bis 250 g/10 Minuten (190°C /2,16 kg) eingesetzt wird. Die textilen Flächengebilde lassen sich als Einlage- oder Futterstoffe für hohe Beanspruchung bei der Pflegebehandlung einsetzen.
摘要:
A building material product and a method of making building material products, having increased resistance to granule rub off and staining. The building material product comprises a substrate having embedded granules and an acrylic latex coating positioned on the granules, where the polymer of the acrylic latex coating has the repeating structural unit [CH 2 -C (R 1 )(R 2 )], where R 1 is hydrogen or C 1 -C 8 alkyl; R 2 is hydrogen, cyano or -COOR; and R is a linear or branched hydrocarbon containing 1-22 carbon atoms, with the proviso that R 1 and R 2 are both not hydrogen. The method includes applying this acrylic latex water based composition to a granule embedded substrate.