A self-adhering sealing device with an adhesive layer arrangement
A sealing device and adhesive layer technology, applied in the direction of film/sheet adhesive, non-polymer adhesive additive, adhesive, etc., can solve the problems of increasing installation cost, increasing manufacturing cost, increasing installation time, etc. , to achieve low production and installation costs
Pending Publication Date: 2021-02-12
SIKA TECH AG
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- Description
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Problems solved by technology
The presence of an additional separator layer increases the manufacturing cost of the membrane
Furthermore, the seams between the overlapping edges of adjacent membranes are usually sealed by heat welding or by using special sealing tape, both of which increase the installation time and ultimately the installation cost
Method used
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[0026] The subject of the invention is a seal (1), in particular a self-adhesive seal, comprising:
[0027] i. A waterproof membrane (2) having first and second major outer surfaces and a width (w) defined between opposing longitudinally extending edges (e1, e2),
[0028] ii. a layer of sealant (3) covering a portion of the second major outer surface of the waterproofing membrane (2), and
[0029] iii. An adhesive layer (4) covering a portion of the second major outer surface of the waterproofing membrane (2), wherein the sealant layer (3) consists of an adhesive sealing composition comprising:
[0030] a) 1 - 40% by weight of at least one elastomer,
[0031] b) 10 - 60% by weight of at least one polyolefin resin which is liquid at 25°C, and
[0032] c) 5 - 65% by weight of at least one inert mineral filler, all proportions based on the total weight of the adhesive sealing composition.
[0033] Substance names beginning with "poly(poly)" indicate substances that formally co...
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Abstract
The invention is directed to a sealing device (1) comprising a waterproofing membrane (2), a sealant layer (3) covering a portion of the second primary exterior surface of the waterproofing membrane (2), and an adhesive layer (4) covering a portion of the second primary exterior surface of the waterproofing membrane (2), wherein the sealant layer (3) is composed of an adhesive sealant compositioncomprising 1 - 40 wt.% of at least one elastomer, 10 - 60 wt.% of at least one at 25 DEG C liquid polyolefin resin, and 5 - 65 wt.% of at least one inert mineral filler. The invention is also directedto a method for producing a sealing device, to a method for waterproofing a substrate, and to a waterproofed substrate.
Description
technical field [0001] The present invention relates to the field of waterproofing of underground and above-ground building structures by using self-adhesive seals. In particular, the present invention relates to self-adhesive roofing membranes that can be used to provide fully adhered waterproofing and roofing systems. [0002] Background of the invention [0003] In the construction sector, polymer sheets, commonly referred to as waterproofing or roofing membranes, are used to protect underground and above-ground structures, such as basements, tunnels, and flat and low-sloping roofs, against water ingress. For example, waterproofing membranes are applied to prevent water intrusion through cracks that can develop in concrete structures due to building settlement, load shifting, or concrete shrinkage. Roof membranes for waterproofing flat and low-pitched roof structures are available as single or multilayer membrane systems. In a single-ply system, the roofing substrate is ...
Claims
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IPC IPC(8): B32B5/02B32B25/08B32B27/08B32B27/12B32B27/20B32B27/22B32B27/30B32B27/32B32B27/34B32B27/36E04B1/66E04D5/10
CPCB32B27/08B32B27/12B32B27/20B32B27/30B32B27/304B32B27/306B32B27/32B32B27/34B32B27/36B32B2307/202B32B2307/7265B32B2419/06B32B2581/00E04D5/10B32B5/022B32B25/08E04B1/665C09J7/20C09J7/38C09J123/00C09J11/06C09J5/00C09J2301/312C09J2301/21C09J2301/204C09J7/29C09J7/381C09J2400/10C09J2423/00E04D5/148
Inventor S·舒恩布洛特R·罗斯卡姆普M·布洛尼H·阿克曼F·霍弗林C·凯尔贝
Owner SIKA TECH AG