Modified ethylene-vinyl alcohol copolymer, method for producing same, and use of same
US-2015210788-A1 · Jul 30, 2015 · US
Film
US9611367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9611367-B2 |
| Application number | US-201414910952-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 5, 2014 |
| Priority date | Aug 9, 2013 |
| Publication date | Apr 4, 2017 |
| Grant date | Apr 4, 2017 |
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- Title
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Abstract
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[Problem] To provide a film that has excellent water solubility which changes little over time even when the film touches a chemical, a package and a liquid transfer printing film each using the film and a liquid transfer printing method using the liquid transfer printing film. [Means for Resolution] A film containing a hydroxymethyl group-containing vinyl alcohol-based polymer containing a vinyl alcohol unit and a unit structure represented by the following formula (1), a package and a liquid transfer printing film each using the film and a liquid transfer printing method using the liquid transfer printing film.
First claim
Opening claim text (preview).
The invention claimed is: 1. A film comprising a hydroxymethyl group-containing vinyl alcohol-based polymer comprising a vinyl alcohol unit and a structural unit of formula (1) 2. The film according to claim 1 , wherein a proportion of the structural unit of formula (1) in the hydroxymethyl group-containing vinyl alcohol-based polymer is 0.1 to 30 mol %. 3. The film according to claim 1 , wherein a proportion of the structural unit of formula (1) in the hydroxymethyl group-containing vinyl alcohol-based polymer is 2 to 10 mol %. 4. The film according to claim 1 , wherein the saponification degree of the hydroxymethyl group-containing vinyl alcohol-based polymer is from 95 to 99.9 mol %. 5. The film according to claim 1 , wherein the film is a chemical packaging film. 6. The film according to claim 1 , wherein the film is a base film suitable for liquid transfer printing. 7. A package comprising a chemical packaged in the film according to claim 5 . 8. The package according to claim 7 , wherein the chemical is an agricultural chemical or a detergent. 9. A liquid transfer printing film obtained by printing on a surface of the film according to claim 6 . 10. A liquid transfer printing method, comprising: floating the liquid transfer printing film according to claim 9 on a surface of a liquid with the printed surface facing upwards; and pushing an object to be printed into the floating liquid transfer printing film from above.
Assignees
Inventors
Classifications
Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids · CPC title
- C08J5/18Primary
Manufacture of films or sheets · CPC title
Hydrolysis · CPC title
Transfer printing apparatus · CPC title
Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive layer · CPC title
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Frequently asked questions
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- What does patent US9611367B2 cover?
- [Problem] To provide a film that has excellent water solubility which changes little over time even when the film touches a chemical, a package and a liquid transfer printing film each using the film and a liquid transfer printing method using the liquid transfer printing film. [Means for Resolution] A film containing a hydroxymethyl group-containing vinyl alcohol-based polymer containing…
- Who is the assignee on this patent?
- Kuraray Co
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 04 2017 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).