Damping foil consisting of several layers and a method for producing same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-001/82
E04B-001/84
B32B-015/12
B32B-015/18
출원번호
US-0182345
(2001-01-17)
우선권정보
DE-0003810 (2000-01-28)
국제출원번호
PCT//EP01/00499
(2002-11-25)
§371/§102 date
20021125
(20021125)
국제공개번호
WO01//54897
(2001-08-02)
발명자
/ 주소
Rust, Torsten
Bl?mel, Ehrenfried
출원인 / 주소
Stankiewicz GmbH
대리인 / 주소
Marshall, Gerstein &
인용정보
피인용 횟수 :
20인용 특허 :
11
초록▼
A multi-layer damping foil having a perforated lower layer facing towards a part to be damped, with properties which are suitable for adhering the damping foil onto the part. A non-perforated upper layer, facing away from the part, does not have adherence properties. Advantageously there may be prov
A multi-layer damping foil having a perforated lower layer facing towards a part to be damped, with properties which are suitable for adhering the damping foil onto the part. A non-perforated upper layer, facing away from the part, does not have adherence properties. Advantageously there may be provided between the upper and lower layers a thin film-like intermediate layer of non-woven fabric, kraft paper, or the like, which may have openings.
대표청구항▼
1. A multi-layer damping foil comprising a perforated first layer to face a part to be damped, said first layer having properties suitable for adhering the damping foil onto the part, and a non-perforated second layer to face away from the part, wherein said second layer does not have such adherence
1. A multi-layer damping foil comprising a perforated first layer to face a part to be damped, said first layer having properties suitable for adhering the damping foil onto the part, and a non-perforated second layer to face away from the part, wherein said second layer does not have such adherence properties.2. The multi-layer damping foil according to claim 1, wherein the first layer has, on a side to face the part, impressions which connect the perforations with one another.3. The multi-layer damping foil according to claim 1, further comprising a thin, film-like intermediate layer disposed between the first and second layers.4. The multi-layer damping foil according to claim 3, wherein the intermediate layer has openings which align with the perforations in the first layer.5. The multi-layer damping foil according to claim 3, wherein the intermediate layer is a non-woven fabric layer or kraft paper layer.6. The multi-layer damping foil according to claim 3, wherein the intermediate layer is provided on both sides with a glue layer, for connection with the first and second layers.7. The multi-layer damping foil according to claim 1, wherein the first layer has a void proportion of about 5 percent to about 30 percent.8. The multi-layer damping foil according to claim 1, wherein the first layer contains magnetic or magnetizable particles.9. The multi-layer damping foil according to claim 8, wherein the particles are present in a proportion of about 50 weight percent to about 70 weight percent.10. The multi-layer damping foil according to claim 1, further comprising a dispersion glue layer or a hot-melt glue layer on a side facing the part.11. The multi-layer damping foil according to claim 1, further comprising a dispersion coating, an antiblocking coating or another surface covering layer on a side facing away from the part.12. The multi-layer damping foil according to claim 1, wherein at least one of the first and second layers comprises a bituminous material.13. The multi-layer damping foil according to claim 1, wherein the first layer has a thickness of about 0.3 mm to about 1.2 mm, and the second layer has a thickness of about 0.8 mm to about 2 mm.14. The multi-layer damping foil according to claim 1, wherein the damping foil is so dimensioned that a loss factor thereof is more than 0.1 at 0° C. to 40° C., and the mass per unit area is less than 5 kg/m2.15. The multi-layer damping foil according to claim 1, wherein at least a portion of the first layer has a layer structure of a strongly deficiently cross-linked polyurethane.16. The multi-layer damping foil according to claim 15, wherein the first layer is a bituminous mixture.17. The multi-layer damping foil according to claim 16, wherein the mixture has a melt viscosity at 180° C. of at least about 50000 mPa·s and a penetration value according to DIN 1995 between 15 and 55.18. A method for producing a multi-layer damping foil comprising a perforated first layer to face a part to be damped, said first layer having properties suitable for adhering the damping foil onto the part, and a non-perforated second layer to face away from the part, wherein said second layer does not have such adherence properties, the method comprising the steps of:producing a first layer, perforating the first layer to form openings through the first layer, and applying a further, second layer onto the first layer. 19. The method according to claim 18, comprising applying, before or after the perforating step, a thin, flexible intermediate layer onto the first layer.20. The method according to claim 18, comprising embossing depressions into the first layer on a side thereof away from the second layer after the application thereof, such that these depressions connect the openings with one another.21. The multi-lever damping foil according to claim 13, further comprising a film-like intermediate layer disposed between the first and second layers, the intermediate layer having a thickness of about 0.1 mm.22. The multi-lever damping foil according to claim 14, wherein the mass per unit area is less than about 4.2 kg/m2.23. The multi-layer damping foil according to claim 16, wherein the first layer is a mixture of blown bitumen and atactic polypropylene.24. The multi-layer damping foil according to claim 23, wherein atactic polypropylene and blown bitumen are present in the mixture in a ratio of atactic polypropylene to bitumen of about 1:3.25. The multi-layer damping foil according to claim 17, wherein said penetration value is between 35 and 55.26. The method according to claim 18, comprising laminating the second layer onto the first layer.27. The method according to claim 19, comprising laminating the intermediate layer onto the first layer.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.