Bonding adhesive and adhered roofing systems prepared using the same
US-2018266114-A1 · Sep 20, 2018 · US
Method for measuring peeling stability of release film and release film laminate
US10562265B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10562265-B2 |
| Application number | US-201515522204-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 26, 2015 |
| Priority date | Oct 28, 2014 |
| Publication date | Feb 18, 2020 |
| Grant date | Feb 18, 2020 |
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Abstract
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Provided is a method for measuring the peeling stability of a release film and a release film laminate by measuring a high-speed release strength balance and a low-speed strength balance on the basis of General Formulas 1 and 2.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for measuring the peeling stability of a release film, the method including the steps of: preparing a laminate including an adhesive layer and a light-peel release film and a medium-peel release film attached to both sides of the adhesive layer; obtaining a light-peel, low-speed release strength by measuring the release strength of the light-peel release film and the adhesive layer at the peeling speed of 0.3 to 3.0 m/min; obtaining a medium-peel, low-speed release strength by measuring the release strength of the medium-peel release film and the adhesive layer at the peeling speed of 0.3 to 3.0 m/min; obtaining a light-peel, high-speed release strength by measuring the release strength of the light-peel release film and the adhesive layer at the peeling speed of 10 to 30 m/min; obtaining a medium-peel, high-speed release strength by measuring the release strength of the medium-peel release film and the adhesive layer at the peeling speed of 10 to 30 m/min; and measuring a high-speed release strength balance and a low-speed release strength balance on the basis of the following General Formulas 1 and 2 High - speed release strength balance = medium - peel , high - speed release strength light - peel , high - speed release strength [ General Formula 1 ] Low - speed release strength balance = medium - peel , high - speed release strength light - peel , high - speed release strength .
Assignees
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Classifications
Delaminating · CPC title
next to a fibrous or filamentary layer · CPC title
characterised by using adhesives · CPC title
of paper or cardboard · CPC title
Adhesive articles, e.g. adhesive tapes · CPC title
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Frequently asked questions
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- What does patent US10562265B2 cover?
- Provided is a method for measuring the peeling stability of a release film and a release film laminate by measuring a high-speed release strength balance and a low-speed strength balance on the basis of General Formulas 1 and 2.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B32B7/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 18 2020 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).