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Biodegradable sheets having adhesive layer
US9403348B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9403348-B2 |
| Application number | US-201214116818-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2012 |
| Priority date | Sep 21, 2012 |
| Publication date | Aug 2, 2016 |
| Grant date | Aug 2, 2016 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
First claim
Opening claim text (preview).
The invention claimed is: 1. A biodegradable sheet comprising: an adhesive layer; a base layer formed on the adhesive layer; a resin layer formed on the base layer; and a printed layer formed on the resin layer, wherein at least one layer of the adhesive layer or the resin layer comprises a polylactic acid (PLA) resin, wherein the adhesive layer is formed from a composition that comprises 10 to 40% by weight of the PLA resin and 60 to 90% by weight of a solvent selected from methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), acetone, ethyl alcohol, and mixtures thereof, wherein the PLA resin consists of amorphous PLA resin, and wherein the resin layer comprises 10 to 50 parts by weight of a non-phthalate plasticizer based on 100 parts by weight of the PLA resin. 2. The biodegradable sheet according to claim 1 , wherein at least one layer of the adhesive layer or the resin layer comprises a blended resin of the PLA resin and a bioresin. 3. The biodegradable sheet according to claim 1 , wherein at least one layer of the adhesive layer or the resin layer comprises a blended resin of the PLA resin and a synthetic resin. 4. The biodegradable sheet according to claim 1 , wherein the resin layer further comprises a processing aid, or a mixture thereof. 5. The biodegradable sheet according to claim 4 , wherein the resin layer further comprises a filler, a lubricant, an additive, or a mixture thereof. 6. A biodegradable sheet comprising: an adhesive layer; a resin layer formed on the adhesive layer; and a printed layer formed on the resin layer, wherein at least one layer of the adhesive layer or the resin layer comprises a polylactic acid (PLA) resin, wherein the adhesive layer is formed from a composition that comprises 10 to 40% by weight of the PLA resin and 60 to 90% by weight of a selected from methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), acetone, ethyl alcohol, and mixtures thereof, wherein the PLA resin consists of amorphous PLA resin, and wherein the resin layer comprises 10 to 50 parts by weight of a non-phthalate plasticizer based on 100 parts by weight of the PLA resin. 7. The biodegradable sheet according to claim 6 , wherein one layer of the adhesive layer or the resin layer comprises a blended resin of the PLA resin and a bioresin. 8. The biodegradable sheet according to claim 6 , wherein one layer of the adhesive layer or the resin layer comprises a blended resin of the PLA resin and a synthetic resin. 9. The biodegradable sheet according to claim 6 , wherein the resin layer further comprises a processing aid, or a mixture thereof. 10. The biodegradable sheet according to claim 9 , wherein the resin layer further comprises a filler, a lubricant, an additive, or a mixture thereof.
Assignees
Inventors
Classifications
including coloring matter · CPC title
using plasticisers · CPC title
- B32B27/36Primary
comprising polyesters · CPC title
Non-woven fabric · CPC title
characterised by the use of special additives · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9403348B2 cover?
- The present invention relates to sheets. The sheets include an adhesive layer, a base layer formed on the adhesive layer, a resin layer formed on the base layer, and a printed layer formed on the resin layer. Each of the adhesive layer and the resin layer includes a polylactic acid (PLA) resin. The sheets are biodegradable.
- Who is the assignee on this patent?
- Lg Hausys Ltd
- What technology area does this patent fall under?
- Primary CPC classification B32B27/36. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 02 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).