Joint seal and method for the production thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-027/08
E04B-001/682
출원번호
US-0722147
(2005-12-19)
등록번호
US-8551611
(2013-10-08)
우선권정보
EP-04030180 (2004-12-20)
국제출원번호
PCT/EP2005/013687
(2005-12-19)
§371/§102 date
20070619
(20070619)
국제공개번호
WO2006/066860
(2006-06-29)
발명자
/ 주소
Pichler, Gabriel
출원인 / 주소
Pichler, Gabriel
대리인 / 주소
Roberts Mlotkowski Safran & Cole, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
The present invention relates to a joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least one front-side joint edge area. The insulation material comprises a single-component, moisture cross-linking, elastic polym
The present invention relates to a joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least one front-side joint edge area. The insulation material comprises a single-component, moisture cross-linking, elastic polymer foam and the sealing material is a sealant which is vapor-diffusion tight, directly adjoins the insulation material, is single-component, moisture cross-linking, and sprayable before the curing, as well as having an elasticity which is essentially equal to or greater than that of the insulation material. Furthermore, a method for producing the joint seal is described.
대표청구항▼
1. A joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least a front-side joint edge area, wherein the insulation material is in a form of a single layer of polyurethane foam comprising a single-component, moisture
1. A joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least a front-side joint edge area, wherein the insulation material is in a form of a single layer of polyurethane foam comprising a single-component, moisture cross-linking, elastic, predominantly closed-cell soft-cell foam having a closed cell proportion of at least 90%, and having been foamed in situ so as to have expanded in the internal joint area to contact surfaces of the joint area,wherein the sealing material comprises a sealant, which is vapor-diffusion tight, directly adjoins the insulation material, is single-component, moisture cross-linked, and sprayable before the curing, the sealing material having been cured in situ against the insulation material, and bonded directly to the polyurethane foam so as to attach components of the joint area to one another, andwherein the sealing material is a silyl-terminated polymer, and has an elasticity which is greater than that of the insulation material. 2. The joint seal according to claim 1, wherein the sealant has a Shore A hardness (DIN 5305) in the range from 10 to 60 in the cured state. 3. The joint seal according to claim 1, wherein the sealant is essentially free of organic solvents in its sprayable state. 4. The joint seal according to claim 1, wherein the silyl-terminated polymer is one which cross-links under the influence of moisture. 5. The joint seal according to claim 1, wherein the sealant has at least one of the following properties: an elongation at break (DIN 53430) of at least 200%,a water vapor diffusion resistance index of at least 900,an Sd value of at least 1.8 m at a layer thickness of 2 mm of the cured sealant. 6. The joint seal according to claim 1, wherein the polyurethane foam has at least one of the following properties: in the testing of the air permeability according to standard EN 1026: airtight up to 300 Pa,in the testing of the tightness to driving rain according to standard EN 1027: no water entry up to 300 Pa,a breaking elongation (DIN 53430) of at least 15%,a thermal conductivity (DIN 52612) of at most 0.1 W/mK. 7. The joint seal according to claim 1, wherein the seal is configured for attachment to one of a structural body, a door, window frame and a roller shutter box. 8. The joint seal according to claim 1, wherein the sealant is provided on only a side of the insulation material facing the front-side joint edge area. 9. The joint seal according to claim 8, wherein the sealant is provided on a side of the insulation material which, in use, is on a side of the joint directed toward an interior room. 10. The joint seal according to claim 9, wherein the sealant is provided to form a seal over the entire length of the component joint.
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이 특허에 인용된 특허 (6)
Hohmann, Jr.,Ronald P., Backer rod for expansion joints.
Barth Bruce P. (Bridgewater NJ) Johnson Robert N. (Basking Ridge NJ) Mayer Walter P. (Lebanon NJ), Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards.
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