Biaxially-stretched polyester film, laminate and packaging bag
US-2021198477-A1 · Jul 1, 2021 · US
Zipper tape and container equipped with zipper tape
US12214932B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12214932-B2 |
| Application number | US-202017614581-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 28, 2020 |
| Priority date | May 31, 2019 |
| Publication date | Feb 4, 2025 |
| Grant date | Feb 4, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A zipper tape is in an elongated shape and includes, in a cross-sectional shape, a pair of base strips and engagement portions projecting from surfaces facing each other of the pair of respective base strips, the engagement portions being engageable with each other. At least the engagement portions are each formed of a first biodegradable resin composition having a yield strain of 3.4% or more during a tensile test.
First claim
Opening claim text (preview).
The invention claimed is: 1. A zipper tape in an elongated shape, comprising, in a cross-sectional shape, a pair of base strips and engagement portions projecting from respective surfaces facing each other of the pair of base strips, the engagement portions being engageable with each other, wherein at least the engagement portions each comprise a first biodegradable resin composition having a yield strain of 15% or more during a tensile test, and wherein the first biodegradable resin composition comprises, a content of polybutylene succinate (PBS) in a range of 60 mass % to 90 mass % and a content of poly (butylene adipate/terephthalate) (PBAT) in a range of 10 mass % to 40 mass %. 2. The zipper tape according to claim 1 , wherein the first biodegradable resin composition further comprises a plasticizer. 3. The zipper tape according to claim 1 , wherein the yield strain during the tensile test is equal to or less than 30%. 4. The zipper tape according to claim 1 , wherein surfaces of the pair of base strips opposite the surfaces facing each other each comprise a second biodegradable resin composition different from the first biodegradable resin composition. 5. The zipper tape according to claim 4 , wherein the second biodegradable resin composition comprises at least any one of polybutylene succinate (PBS), poly (butylene adipate/terephthalate) (PBAT), or poly (butylene succinate/adipate) (PBSA). 6. The zipper tape according to claim 4 , wherein the second biodegradable resin composition comprises at least any one of polybutylene succinate (PBS) or poly (butylene succinate/adipate) (PBSA). 7. The zipper tape according to claim 6 , wherein in the second biodegradable resin composition, a content of polybutylene succinate (PBS) is equal to or less than 90 mass % and a content of poly (butylene succinate/adipate) (PBSA) is in a range from 10 mass % to 100 mass %. 8. A zipper-tape-equipped container comprising: the zipper tape according to claim 1 ; and a container body to which the zipper tape is bonded. 9. The zipper-tape-equipped container according to claim 8 , wherein the container body is in a form of a bag body.
Assignees
Inventors
Classifications
Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics · CPC title
containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title
Biodegradable · CPC title
Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title
Bio- or photodegradable packaging materials · CPC title
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Frequently asked questions
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- What does patent US12214932B2 cover?
- A zipper tape is in an elongated shape and includes, in a cross-sectional shape, a pair of base strips and engagement portions projecting from surfaces facing each other of the pair of respective base strips, the engagement portions being engageable with each other. At least the engagement portions are each formed of a first biodegradable resin composition having a yield strain of 3.4% or more …
- Who is the assignee on this patent?
- Idemitsu Unitech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B65D33/2508. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 04 2025 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).