Porous layer
US-2017263905-A1 · Sep 14, 2017 · US
Laminated separator roll
US10347891B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10347891-B2 |
| Application number | US-201715602390-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 23, 2017 |
| Priority date | May 26, 2016 |
| Publication date | Jul 9, 2019 |
| Grant date | Jul 9, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
In the present invention, in laminated separator rolls 12U and 12L, laminated long separator sheets 12a and 12b are wound such that a surface B (which is of an aramid layer (heat-resistant layer) and is opposite to a surface contacting with the porous film) faces an inner side (core u, l side). From this, it is possible to provide the laminated separator roll which can inhibit change in color of the porous layer included in the porous long separator sheet.
First claim
Opening claim text (preview).
The invention claimed is: 1. A laminated separator roll comprising a laminated separator sheet wound on a core, wherein the laminated separator sheet comprises a polyolefin porous base material having first and second opposing surfaces, wherein a porous layer containing a resin having it bonding or halogen atoms is laminated on the first surface of the porous base material, and wherein an outermost surface of the laminated separator roll is the second surface of the porous base material. 2. The laminated separator roll as set forth in claim 1 , wherein the resin having π bonding or halogen atoms is a polymer having halogen atoms or is an aromatic polymer. 3. The laminated separator roll as set forth in claim 1 , wherein the porous layer is an aramid resin layer.
Assignees
Inventors
Classifications
- B32B27/00Primary
Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} · CPC title
comprising layers of only organic material and layers containing inorganic material · CPC title
- H01M50/469Primary
tubular or cylindrical · CPC title
Polyamide resins · CPC title
Acrylic resins · CPC title
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- What does patent US10347891B2 cover?
- In the present invention, in laminated separator rolls 12U and 12L, laminated long separator sheets 12a and 12b are wound such that a surface B (which is of an aramid layer (heat-resistant layer) and is opposite to a surface contacting with the porous film) faces an inner side (core u, l side). From this, it is possible to provide the laminated separator roll which can inhibit change in color o…
- Who is the assignee on this patent?
- Sumitomo Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification B32B27/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 09 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).