Abstract:
L'invention concerne le domaine des matériaux isolants, et en particulier des plaques en liège. Afin de s'affranchir de la fabrication traditionnelle, par compression, d'une plaque de liège tout en proposant un panneau rigide composé essentiellement de liège ayant toutes les propriétés du liège expansé ou naturel, la présente invention propose une plaque composite rigide comprenant des grains de liège seulement agglomérés par un liant et enrobant une armature rigide ajourée, ainsi qu'une méthode pour fabriquer une telle plaque.
Abstract:
An implant including a substantially cohesive aggregate comprising bone-derived particles. Cohesiveness is maintained by a member of mechanical interlocking, engagement of adjacent bone-derived particles with one another through engagement with a binding agent, thermal bonding, chemical bonding, or a matrix material in which the bone-derived particles are retained. The aggregate is shaped as a one-dimensional or two-dimensional body.
Abstract:
Using phase separation technique perforated as well as non-perforated polymeric structures can be made with high aspect ratios (>5). By varying the phase separation process the properties (e.g. porous, non-porous, dense, open skin) of the moulded product can be tuned. Applications are described in the field of micro fluidics (e.g. micro arrays, electrophoretic boards), optics, polymeric solar cells, ball grid arrays, and tissue engineering.
Abstract:
A process for consolidating/molding a material made of (a) block copolymers of rigid or semi-rigid PBZ with thermoplastic polymers, (b) block copolymers of rigid PBZ with semi-rigid PBZ, (c) molecular composites of rigid or semi-rigid PBZ with thermoplastic polymers, (d) molecular composites of rigid or semi-rigid PBZ with non-rigid PBZ polymers or (d) semi-rigid PBZ polymers which process comprises (1) providing the material in its substantially acid-free, wet coagulated state, and in the form of a plurality of films or film layers, filaments or fibers, powders, or granules, (2) removing substantially all surface water remaining on the material, leaving the material with sufficient water to plasticize the material, (3) subjecting the material to a first pressure (P1) which is sufficient to provide a substantially void-free consolidated material upon molding, and (4) applying heat and a second pressure (P2) to the wet coagulated material in amounts sufficient to fuse the films or film layers, filaments or fibers, powders, or granules into a single entity. The molded material is suitable for use as a structural material or as an electronic substrate or for any other use in which a thermoplastic polymer corresponding to the thermoplastic portion of the block copolymer or molecular composite would have been suitable.
Abstract:
Die Erfindung beschreibt ein Verfahren zum Verarbeiten von nicht absorbierenden pulverförmigen Materialien wie Toner, Wachse und polymere Materialien, insbesondere Abfallstoffe, zum anschließenden Transport, Lagerung und Verwendung und besteht darin, dass das nicht absorbierende pulverförmige Material zuerst in einem Homogenisator mit absorbierendem Material mit einer Teilchengröße von 1 μm bis 20 mm und mit einer flüssigen Komponente, oder mit einem Produkt einer Zwischenbehandlung des absorbierenden Materials mit einer flüssigen Komponente, wie Schlamm, gemischt wird. Die so erhaltene homogenisierte Mischung mit einem Mindestgewichtsanteil von 3 % der flüssigen Komponente wird unter Druck bis zu 40 MPa verdichtet. Die Temperatur, auf die das verdichtete Gemisch erwärmt wird, gemessen über den gesamten Querschnitt des komprimierten Gemisches, übersteigt nicht 80°C. Der lokale Temperaturanstieg bei mechanischer Veränderung während des Verdichtens ist durch eine Grenztemperatur von 350°C begrenzt.
Abstract:
Solid, non-melting polyurethanes having a glass transition temperature of at least 40°C and free isocyanate groups are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these polyurethanes will self-bond. The polyurethanes can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These polyurethane adhesives are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.
Abstract:
The present invention relates to a method for producing molded products using coffee grounds, in which coffee grounds are collected from coffee shops and then dried, fractionated, and ground, after which the thus-processed coffee grounds are mixed with purified water and a binding agent, and the resultant mixture is poured into a mold to be compression molded into various shapes, e.g. cubes. The thus-molded articles may replace existing soaps used for practicing carving so as to prevent wasted resources and environmental contamination. The method for producing molded products using coffee grounds according to the present invention enables a minimal addition of chemicals during molding so as to provide practice materials which are harmless to the human body.
Abstract:
본 발명은 커피찌꺼기를 이용한 성형품 가공방법에 관한 것으로서, 커피찌꺼기를 커피전문점으로부터 수거하고 건조-분별-분쇄 공정 후 가공된 커피찌꺼기를 정제수 및 결합제와 혼합하여 고정틀에 넣어 큐브 형태를 포함한 다양한 형태로 압착 성형함으로서 기존의 조각실습에 사용되었던 비누를 대체할 수 있어 자원 낭비를 방지하고 환경오염을 예방할 수 있으며 성형시 화학물질의 첨가를 최소화하여 인체에 무해한 실습자재를 제공하기 위한 커피 찌꺼기를 이용한 성형품 가공 방법을 제안하고자 한다.
Abstract:
Using phase separation technique perforated as well as non-perforated polymeric structures can be made with high aspect ratios (>5). By varying the phase separation process the properties (e.g. porous, non-porous, dense, open skin) of the moulded product can be tuned. Applications are described in the field of micro fluidics (e.g. micro arrays, electrophoretic boards), optics, polymeric solar cells, ball grid arrays, and tissue engineering.