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Multilayer film and molded body
US8980432B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980432-B2 |
| Application number | US-201113643450-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2011 |
| Priority date | Apr 27, 2010 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A first multilayer film is a multilayer film which contains a layer A on at least one surface of a base film, in which the layer A has (1) a polycaprolactone segment, (2) a polysiloxane segment and/or a polydimethyl siloxane segment, and (3) a urethane bond, and the layer A has a glass transition temperature of from −30 to 0° C. A second multilayer film contains a layer A on at least one surface of a base film, in which the layer A has a scratch recovery time of 3 seconds or less at a temperature of 10° C. A third multilayer film contains a layer B on at least one surface of a base film, in which the layer B has a polycaprolactone segment and a urethane bond, and the layer B has average elongation at break of 65% or more at 80° C. to 150° C.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multilayer film comprising a layer B on at least one surface of a base film, wherein the layer B has a polycaprolactone segment and a urethane bond, and the layer B has average elongation at break of 65% or more at 80° C. to 150° C., wherein the layer B contains a polysiloxane segment and/or a polydimethylsiloxane segment, and wherein the base film has alternately 50 layers or more of each of a layer including polyester resin C in an amount of 50% by mass or more and 100% by mass or less (layer C) and a layer including polyester resin D in an amount of 50% by mass or more and 100% by mass or less (layer D). 2. The multilayer film according to claim 1 , wherein the layer B has minimum elongation at break of 65% or more at 80° C. to 150° C. 3. A molded body using the multilayer film according to claim 1 . 4. The molded body according to claim 3 , wherein the molding magnification ratio of the multilayer film is from 1.1 to 1.6.
Assignees
Inventors
Classifications
- B32B27/08Primary
of synthetic resin · CPC title
Polysilicates · CPC title
with two or more layers, where at least one layer of a composition contains a polymer binder · CPC title
comprising polyesters · CPC title
Polyurethanes · CPC title
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Frequently asked questions
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- What does patent US8980432B2 cover?
- A first multilayer film is a multilayer film which contains a layer A on at least one surface of a base film, in which the layer A has (1) a polycaprolactone segment, (2) a polysiloxane segment and/or a polydimethyl siloxane segment, and (3) a urethane bond, and the layer A has a glass transition temperature of from −30 to 0° C. A second multilayer film contains a layer A on at least one surfac…
- Who is the assignee on this patent?
- Sonoda Kazumori, Osada Syunichi, Mimura Takashi, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B32B27/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).