Waterproofing membrane
US-2015052847-A1 · Feb 26, 2015 · US
Water vapour control, which is arranged facing the inside of a building
US9523189B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9523189-B2 |
| Application number | US-201214235871-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 3, 2012 |
| Priority date | Aug 2, 2011 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Water vapor control, which is arranged facing the inside of a building, comprising a first layer having a water vapor diffusion resistance (sd-value) of 1-5 meters diffusion-equivalent air space width, measured at a relative humidity of an atmosphere surrounding the layer of 30-50%, and having a Sd-value of <1 meters diffusion-equivalent air space width, measured at a relative humidity of 60-80%, and a second layer having a Sd-value of >0.6 meters diffusion-equivalent air space width, measured at a relative humidity of 80-100%.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multi-layer water vapour control film comprising a first film layer and a second film layer, wherein the first film layer is comprised of a polyamide film having a water vapour diffusion resistance (Sd-value) of 1-5 meters diffusion-equivalent air space width, measured at a relative humidity of an atmosphere surrounding the layer of 30-50%, and a Sd-value of <1 meters diffusion-equivalent air space width, measured at a relative humidity of 60-80%, and wherein the second film layer is comprised of a polyester film or copolyester film having a Sd-value of >0.2 meters diffusion-equivalent air space width, measured at a relative humidity of 80-100%. 2. The multi-layer water vapour control film according to claim 1 , wherein the second film layer has a Sd-value of >0.4 meters diffusion-equivalent air space width, measured at a relative humidity of 80-100%. 3. The multi-layer water vapour control film according to claim 1 , wherein the second film layer has a Sd-value of >0.8 meters diffusion-equivalent air space width, measured at a relative humidity of 80-100%. 4. The multi-layer water vapour control film according to claim 1 , wherein the second film layer has a Sd-value of <3 meters diffusion-equivalent air space width, measured at a relative humidity of 80-100%. 5. The multi-layer water vapour control film according to claim 1 , wherein second film layer is a copolyetherester film.
Assignees
Inventors
Classifications
comprising polyesters · CPC title
- E04B1/625Primary
Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps · CPC title
Buildings or parts thereof · CPC title
Sheets of flexible material, e.g. roofing tile underlay · CPC title
comprising polyamides · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9523189B2 cover?
- Water vapor control, which is arranged facing the inside of a building, comprising a first layer having a water vapor diffusion resistance (sd-value) of 1-5 meters diffusion-equivalent air space width, measured at a relative humidity of an atmosphere surrounding the layer of 30-50%, and having a Sd-value of <1 meters diffusion-equivalent air space width, measured at a relative humidity of 60-80…
- Who is the assignee on this patent?
- Tijssen Maria Hubert Pierre, Dsm Ip Assets Bv
- What technology area does this patent fall under?
- Primary CPC classification E04B1/625. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).