Resin composition pellet
US-2018371179-A1 · Dec 27, 2018 · US
Molding material comprising a group of saponified ethylene-vinyl ester-based copolymer pellets and molding method using same
US12503538B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12503538-B2 |
| Application number | US-201916294397-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2019 |
| Priority date | Sep 7, 2016 |
| Publication date | Dec 23, 2025 |
| Grant date | Dec 23, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A molding material comprising a pellet group of at least 20 saponified ethylene-vinyl ester-based copolymer pellets, wherein at least 95% of the pellets have a surface that is substantially a single closed surface, and when a maximum outer diameter of a pellet is taken as a long diameter and a minimum diameter in a cross section having the greatest area among the cross sections perpendicular to the long diameter is taken as a short diameter, the average value of the long diameter/short diameter ratio of at least 20 pellets taken from the pellet group is 1.6 or less and the standard deviation of the long diameter/short diameter ratio of the at least 20 pellets is 0.13 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method of molding a molded article comprising: feeding a molding material comprising a pellet group of at least 20 saponified ethylene-vinyl ester-based copolymer pellets an extruder wherein, the rotational speed of a screw in the extruder is 10 to 100 rpm, at least 95% of the pellets have a surface that is substantially a single closed surface; and when a maximum outer diameter of a pellet is taken as a long diameter and a minimum diameter in a cross section having the greatest area among cross sections perpendicular to the long diameter is taken as a short diameter, the average value of the long diameter/short diameter ratio of at least 20 pellets taken from the pellet group is 1.6 or less and the standard deviation of the long diameter/short diameter ratio of the at least 20 pellets is 0.13 or less, and the at least 95% of the pellets have an oval cross section perpendicular to the long diameter.
Assignees
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Classifications
as molar percentages · CPC title
Particles, powder or granules (expandable particles B29K2105/046) · CPC title
Use of polyvinylesters {or derivatives thereof} as moulding material · CPC title
in solid form, e.g. powder or granules · CPC title
at the plasticising zone · CPC title
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- What does patent US12503538B2 cover?
- A molding material comprising a pellet group of at least 20 saponified ethylene-vinyl ester-based copolymer pellets, wherein at least 95% of the pellets have a surface that is substantially a single closed surface, and when a maximum outer diameter of a pellet is taken as a long diameter and a minimum diameter in a cross section having the greatest area among the cross sections perpendicular to…
- Who is the assignee on this patent?
- Nippon Synthetic Chem Ind Co Ltd, Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification B29B9/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 23 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).