Abstract:
A man-made vitreous fibre batt is made using two or more centrifugal spinners (1, 2, 3) arranged in side-by-side relationship by fiberising melt on the spinners and collecting the fibres on a conveyor (5) as a web, and cross-lapping the web to make a batt, wherein two or more fiberising parameters selected from the physical properties, chemical analysis, melt flow, position, acceleration field or air flow field are adjusted in order to control the thickness properties of the batt. Both the process and the apparatus is novel. By the invention it is possible to obtain a batt having differing properties in the core (12) from either or both of the face sections (10, 11).
Abstract:
The present invention relates to a process for the preparation of a mineral fibre board, and such a board having a predominant fibre orientation. The process comprises provision of a primary web, compression of the primary web, doubling of the primary web under formation of a secondary web, curing of an added binder and optional compression of the secondary web.
Abstract:
A nonwoven fabric constituted of high-flatness glass fibers whose cross sections have aspect ratios of 2.0 to 10 and rates of filling of 85 % or above, preferably 90 % or above. Such glass fibers have nearly rectangular cross sections and therefore can be arranged in an extremely dense state to give a nonwoven fabric which is extremely thin and has a high bulk density. The fabric can give laminates which are enhanced in the glass fiber content and improved in the surface smoothness, thus being suitably usable as the reinforcement for printed wiring boards. The glass fibers can be produced by the use of, e.g., a nozzle equipped with a tip which has a flat orifice and whose major-axis wall is partially cut out on one side.
Abstract:
A method for making a glass yarn mat, wherein a binder is continuously deposited on a mat of glass yarns spread over a moving conveyor, and the mat is baked and optionally calendered. For this purpose, a liquid binder with a viscosity on deposition of less than around 40 millipascals per second is deposited on the yarn mat, and said binder consists of an aqueous solution of one or more polyvinyl alcohols.
Abstract:
본 발명은 초저열전도도 나노다공체 단열재 조성물 및 이를 이용한 단열재에 관한 것이다. 본 발명에 따른 초저열전도도 나노다공체 단열재 조성물은 나노 크기의 기공이 형성된 3차원 나노 기공 구조체; 및 상기 3차원 나노 기공 구조체 내부에 무작위로 분산되고 증착되어 상기 나노 기공 구조체의 나노 기공 크기가 감소되도록 하여 단열성능이 향상 되도록 하고 나노 크기의 기공이 형성된 2차원 시트를 포함 할 수 있다. 또한, 상술한 나노다공체 단열재 조성물; 및 단열 매트 또는 유리섬유매트가 혼합된 것을 특징으로 하는 복합 단열재를 제공한다. 도 1
Abstract:
An insulation product is disclosed that includes a plurality of glass fibers and a cross-linked formaldehyde-free binder composition at least partially coating the glass fibers. The glass fibers have an average fiber diameter in the range of 8 HT (2.03 μm) to 15 HT (3.81 μm). The insulation product is structured such that at least 30% by weight of the glass fibers in the insulation product are oriented within +/- 15° of a common plane defined by a length and width of the insulation product. The insulation product has a density, when uncompressed, between 0.2 pcf and 1.6 pcf.
Abstract:
A Fire-Resistant Vapour-Barrier MembraneA fire-resistant vapour barrier membrane is disclosed, for use in the construction of buildings etc. It comprises a layered structure forming a flexible sheet, and has a first layer of glass fibre, and a second layer of silicone coating, wherein the glass fibre comprises a greater proportion of the material than the silicone, and the ratio, by weight, of glass fibre to silicone is within the range of 51:49 to 99:1. The membrane may be used where current waterproof membranes are used, such as in roofing structures, or under floors etc. and it improves safety over prior art barriers by increasing fire-resistance.