Abstract:
The present invention relates to thermoset resin fibre components (10, 30, 40, 44, 50, 210, 310, 410), composite materials (12, 26, 28, 29, 34, 36, 43, 48, 54, 58, 62) comprising thermoset resin fibre components, composite articles manufactured using such composite materials and methodologies for manufacturing same. The thermoset resin fibre components may comprise a single fibre of thermoset resin or a plurality of fibres commingled together. The properties and characteristics of the thermoset resin used are chosen according to the materials to be produced therefrom. The thermoset fibre components may be woven into reinforcement fibres (14, 31, 38, 114, 214, 314, 60, 414) to form prepregs. Thermoplastic fibres (32, 46, 52) may be commingled and co-woven with the thermoset fibre components.
Abstract:
Materials and methods are provided for producing preform materials for impact-resistant composite materials suitable for liquid molding. Interlayers formed of nonwoven, continuous fibers, such as spunbonded, spunlaced, or mesh fabric, are introduced between non-crimped layers of unidirectional reinforcing fibers to produce a preform for use in liquid-molding processes to produce a composite member. Curing of the preform provides increased impact resistance by increasing the amount of energy required to propagate localized fractures due to impact.
Abstract:
Nonwoven fabric fabrics suitable for undergoing pleating to form filtration media are provided. The fabrics generally include at least three layers. The fibers forming the inner layer has a cross section providing greater stiffness, while the fibers forming the outer layers have a cross section providing greater durability. The resulting fabrics provide improved particulate holding and pressure drop characteristics at no sacrifice to durability.
Abstract:
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.
Abstract:
L'armature selon l'invention comporte une couche intérieure (2) épaisse et aérée à base de fils de verre continus (2a) en mèche éclatée, la couche intérieure (2) étant recouverte de deux couches externes (3, 4) à tronçons de fibres à surface thermofusible. L'ensemble est solidarisé par des tronçons pénétrants (3b, 4b) de fibres à surface thermofusible, qui pénètrent selon une partie de leur longueur dans la couche intérieure (2) et qui adhèrent aux fils de verre continus (2a).
Abstract:
The present invention relates to thermoset resin fibre components (10, 30, 40, 44, 50, 210, 310, 410), composite materials (12, 26, 28, 29, 34, 36, 43, 48, 54, 58, 62) comprising thermoset resin fibre components, composite articles manufactured using such composite materials and methodologies for manufacturing same. The thermoset resin fibre components may comprise a single fibre of thermoset resin or a plurality of fibres commingled together. The properties and characteristics of the thermoset resin used are chosen according to the materials to be produced therefrom. The thermoset fibre components may be woven into reinforcement fibres (14, 31, 38, 114, 214, 314, 60, 414) to form prepregs. Thermoplastic fibres (32, 46, 52) may be commingled and co-woven with the thermoset fibre components.
Abstract:
A method for producing asphalt fibers (26) includes supplying molten asphalt (20) to a rotating asphalt spinner (10), centrifuging asphalt fibers (22) from the asphalt spinner (10), and collecting the asphalt fibers (26). The molten asphalt (20) is supplied to the asphalt spinner (10) at a temperature within the range of from about 270 DEG F (132 DEG C) to about 500 DEG F (260 DEG C). Also disclosed is a method for integrating asphalt (20) with reinforcement fibers including the steps of establishing a downwardly moving veil of reinforcement fibers, such as glass fibers (52), and centrifuging asphalt fibers (22) from a rotating asphalt spinner (10) positioned within the veil of reinforcement fibers to integrate the asphalt (20) with the reinforcement fibers. A method for making an asphalt roofing shingle (84) includes the steps of assembling together a mat of asphalt fibers (34) with a mat of reinforcement fibers, coating the assembled mats (70) to form an asphalt-coated sheet, applying granules (80) to the asphalt-coated sheet, and cutting (86) the asphalt-coated sheet into roofing shingles (84). The invention also includes the asphalt roofing shingle (84) made by this process. Further, the invention includes asphalt highway reinforcement products (116) containing asphalt fibers (26), and the method of making such products.
Abstract:
본 발명은 초지법에 의하여 젤화가 일어나는 셀룰로오스계 단섬유로 이루어진 의료용 부직포, 그의 제조방법 및 그를 이용한 유착방지막에 관한 것이다. 본 발명은 젤화가 일어나는 셀룰로오스계 단섬유로 이루어진 단일상의 의료용 부직포를 제공함으로써, 상기 단섬유간 형성된 미세공에 의해 모세관현상을 유도하여 젤화속도를 제어하고, 상기 젤화가 일어나는 셀룰로오스계 단섬유로 이루어진 단일상의 의료용 부직포층상에, 젤화가 일어나지 않는 이종의 생분해성 고분자 소재로 이루어진 부직포층을 합지한 복합부직포를 제공함으로써, 형태안정성 및 시술편의성을 개선한다. 또한, 본 발명은 의료용 부직포를 착색함으로써, 시술시 도포여부 및 도포위치를 용이하게 파악할 수 있도록 시인성을 개선한다. 나아가, 본 발명의 단일상 부직포 또는 복합부직포는 부직포 내 섬유간 미세공의 모세관현상에 의해 젤화속도를 효율적으로 제어할 수 있으므로, 종래 니트형태 또는 필름형태의 유착방지막과는 달리, 시술편의성 및 유착발생률이 개선된 유착방지막으로서 활용될 수 있다.
Abstract:
A composite upholstery panel includes a layer of ticking fabric, a layer of flame and heat-resistant backing fabric, and a layer of resilient flame and heat-resistant cushioning material sandwiched between the layer of ticking fabric and the layer of backing fabric. The composite upholstery panel maintains flame and heat resistant integrity when impinged at any location with a gas flame in accordance with testing protocol set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs (TB-603). However, individually, the ticking layer, backing layer and cushioning layer would fail to maintain flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocol set forth in TB-603.
Abstract:
The present invention relates to an acoustical insulation material containing a first layer formed from a nonwoven web having a density of at least 50 kg/m 3 wherein the nonwoven web is formed from thermoplastic [meltblown] fibers having an average fiber diameter of less than about 7 microns; and a second layer of a high loft material. The high loft material of the present invention provides bulk to the first layer and may or may not have sound attenuating properties. Examples of the high loft material include, for example, fiberglass and high loft nonwoven webs. Also disclosed in a method of attenuating sound waves passing from a sound source area to a second area. The method includes positioning an acoustical insulation material containing a first layer formed from a nonwoven web having a density of at least 50 kg/m 3 wherein the nonwoven web is formed from thermoplastic [meltblown] fibers having an average fiber diameter of less than about 7 microns; and a second layer of a high loft material, between the sound source area and the second area.
Abstract translation:本发明涉及一种隔音材料,其包含由密度为至少50kg / m 3的非织造纤维网形成的第一层,其中非织造纤维网由平均纤维直径较小的热塑性[熔喷纤维]形成 比约7微米; 和第二层高高的材料。 本发明的高膨松材料向第一层提供体积,并且可以具有或不具有声音衰减特性。 高膨松材料的实例包括例如玻璃纤维和高隆起的非织造纤维网。 还公开了一种衰减从声源区域传播到第二区域的声波的方法。 该方法包括定位包含由密度为至少50kg / m 3的非织造纤维网形成的第一层的隔音材料,其中非织造纤维网由平均纤维直径小于的纤维的热塑性[熔喷纤维]形成 约7微米; 以及在所述声源区域和所述第二区域之间的高放样材料的第二层。