Method for producing composite elements and composite element
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/26
B32B-003/06
B32B-005/14
B32B-007/12
출원번호
US-0311550
(2001-06-29)
등록번호
US-7445837
(2008-11-04)
우선권정보
DE-100 33 322(2000-07-03)
국제출원번호
PCT/EP01/007489
(2001-06-29)
§371/§102 date
20030403
(20030403)
국제공개번호
WO02/002325
(2002-01-10)
발명자
/ 주소
Bopp,Michael
출원인 / 주소
Bopp,Michael
대리인 / 주소
Marshall & Melhorn, LLC
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
A method is proposed for producing composite elements which have at least one core and cover layers containing two fibres, with the following steps: coating of open-pored, semi-finished products comprising fibre materials with fine-grained, pulverulent, cross-linking resin, in such a manner that
A method is proposed for producing composite elements which have at least one core and cover layers containing two fibres, with the following steps: coating of open-pored, semi-finished products comprising fibre materials with fine-grained, pulverulent, cross-linking resin, in such a manner that the open porosity remains, forming of an arrangement of at least one open-pored core and two coated semi-finished products in a forming tool which is heated to the cross-linking temperature of the pulverulent resin.
대표청구항▼
The invention claimed is: 1. A composite element having at least one core and cover layers containing two fibers in a sandwich layer, wherein the core comprises an open-pored material and the cover layers comprise fiber materials provided with a coating and present in the form of semi-finished prod
The invention claimed is: 1. A composite element having at least one core and cover layers containing two fibers in a sandwich layer, wherein the core comprises an open-pored material and the cover layers comprise fiber materials provided with a coating and present in the form of semi-finished products, the coating having reactive resin, which is a powder matrix of cross-linking ethylene-propylene copolymers, unsaturated polyesters and/or polyurethanes and cetyl-methylcellulose, vinylacetate dispersions, PVA solutions, starch or polysaccharides as a thickening agent. 2. A composite element according to claim 1, wherein the semi-finished product is formed as one of: a glass fiber mat, glass fiber layering, continuous or staple fiber glass fiber mat, synthetic fiber mat made of PET, PA or the like with a melting point of higher than 160�� C., as a natural fiber mat made of jute, hemp, sisal, flax, kenaf, cotton or as metal fiber knitted material or mat. 3. A composite element according to claim 1, wherein the core comprises an open-pored material which cannot melt at a temperature up to 200�� C. 4. A composite element according to claim 3, wherein the core has embedded mineral fibers, MF foam and/or silicate fibers. 5. A composite element according to claim 1, wherein a plurality of open-pored cores is provided with different materials and properties with respective interposition of a coated semi-finished product. 6. A composite element according to claim 1, wherein it has a relative airflow resistance of 150-450 kNs/m4. 7. A composite element according to claim 3, wherein the core comprises a foamed or fiber material, or honeycomb structure produced from beamed or unsaturated paper or perforated aluminum, or knitted materials produced by textile techniques. 8. A composite element according to claim 5, wherein the cover layers have different flow resistances.
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이 특허에 인용된 특허 (9)
Morman Michael T., Breathable laminate including filled film and continuous film.
Sevenish Scott W. ; Householder Kimberley A. ; Rusek Stanley J. ; Maines Jerry L., Fibrous moldable media containing a foamed resin dispersed throughout useful as thermal and acoustical insulation.
Manigold Alain (Romanswiller FRX), Panel that absorbs acoustic energy at low, medium and high frequencies, particularly at frequencies ranging from 400 Hz.
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