Film
US-2016194465-A1 · Jul 7, 2016 · US
Water-soluble film and package
US2023257536A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023257536-A1 |
| Application number | US-202118003791-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 14, 2021 |
| Priority date | Jun 29, 2020 |
| Publication date | Aug 17, 2023 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
[Problem to be solved] To provide a water-soluble film having good transparency and good releasability from a support with less surfactant content.[Solution] A water-soluble film containing a polyvinyl alcohol resin and surfactant, wherein a content of the surfactant is 0.005 to 1 parts by mass with respect to 100 parts by mass of the polyvinyl alcohol resin, and a ratio S(0)/S(32) of an abundance amount S(0) of the surfactant on at least one surface of the water-soluble film to an abundance amount S(32) of the surfactant on a cross-section surface at a depth of 32 nm from the at least one surface of the water-soluble film, measured by a count number of fragment ions derived from the surfactant detected by time-of-flight secondary ion mass spectrometry on the at least one surface of the water-soluble film, is in the range of 100 to 500.
First claim
Opening claim text (preview).
1 . A water-soluble film containing a polyvinyl alcohol resin and surfactant, wherein a content of the surfactant is 0.005 to 1 parts by mass with respect to 100 parts by mass of the polyvinyl alcohol resin, and a ratio S(0)/S(32) of an abundance amount S(0) of the surfactant on at least one surface of the water-soluble film to an abundance amount S(32) of the surfactant on a cross-section surface at a depth of 32 nm from the at least one surface of the water-soluble film, measured by a count number of fragment ions derived from the surfactant detected by time-of-flight secondary ion mass spectrometry on the at least one surface of the water-soluble film, is in the range of 100 to 500. 2 . The water-soluble film as claimed in claim 1 , wherein the surfactant is a nitrogen-containing surfactant. 3 . The water-soluble film as claimed in claim 2 , wherein the nitrogen-containing surfactant contains at least one selected from the group consisting of an alkylamine-based surfactant, an alkylamide-based surfactant and an alkylalkanolamide-based surfactant. 4 . The water-soluble film as claimed in claim 3 , wherein the alkylamine-based surfactant is a polyoxyethylene alkylamine-based surfactant, and the alkylamide-based surfactant is a higher fatty acid diethanolamide-based surfactant. 5 . The water-soluble film as claimed in claim 1 containing a filler. 6 . The water-soluble film as claimed in claim 5 , wherein the filler is inorganic particles. 7 . A package in which the water-soluble film as claimed in claim 1 stores a chemical. 8 . The package as claimed in claim 7 , wherein the chemical is a pesticide, a detergent or a disinfectant. 9 . The package as claimed in claim 7 , wherein the chemical is in a liquid form.
Assignees
Inventors
Classifications
- C08J5/18Primary
Manufacture of films or sheets · CPC title
Amines; Quaternary ammonium compounds · CPC title
Silicon-containing compounds · CPC title
Liquid or thixotropic (gel) compositions · CPC title
Liquid compositions · CPC title
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Frequently asked questions
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- What does patent US2023257536A1 cover?
- [Problem to be solved] To provide a water-soluble film having good transparency and good releasability from a support with less surfactant content.[Solution] A water-soluble film containing a polyvinyl alcohol resin and surfactant, wherein a content of the surfactant is 0.005 to 1 parts by mass with respect to 100 parts by mass of the polyvinyl alcohol resin, and a ratio S(0)/S(32) of an abunda…
- 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 Thu Aug 17 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).