WO2023129464 - POLYMER COMPOSITIONS HAVING DENSIFICATION ACCELERATORS AND ROTATIONAL MOLDING PROCESSES FOR MAKING HOLLOW ARTICLES THEREFROM
National phase entry:
Publication Number
WO/2023/129464
Publication Date
06.07.2023
International Application No.
PCT/US2022/053773
International Filing Date
22.12.2022
Title **
[English]
POLYMER COMPOSITIONS HAVING DENSIFICATION ACCELERATORS AND ROTATIONAL MOLDING PROCESSES FOR MAKING HOLLOW ARTICLES THEREFROM
[French]
COMPOSITIONS POLYMÈRES COMPRENANT DES ACCÉLÉRATEURS DE DENSIFICATION ET PROCÉDÉS DE MOULAGE PAR ROTATION POUR FABRIQUER DES ARTICLES CREUX À PARTIR DE CELLES-CI
Applicants **
CYTEC INDUSTRIES INC.
Inventors
ENG, Jerry Mon Hei
GUPTA, Ram B.
KOZAKIEWICZ, Joseph
CHO, Jian-Yang
TREICH, Gregory Martin
Priority Data
63/295,879
01.01.2022
US
Application details
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| Number of Multi-Dependent Claims | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 4622 | |
| EPO | Filing, Examination, Granting | 73615 | |
| Japan | Filing, Examination, Granting | 4343 | |
| South Korea | Filing, Examination, Granting | 6513 | |
| USA | Filing, Examination, Granting | 21990 |
Total:
111,083
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Rotational molding processes for producing hollow articles include the steps of: a) filling a mold with a polymer composition comprising: i) an organic polymer; and ii) a rotational molding densification accelerator (RMDA) selected from the group consisting of alkoxylated fatty alcohols, alkoxylated fatty esters, alkoxylated fatty amines, alkoxylated fatty amides, and combinations thereof; b) rotating the mold around at least one axis while heating the mold in an oven, thereby fusing the composition and spreading it to the walls of the mold; c) cooling the mold; and d) opening the mold; and e) removing the hollow article from the mold. The rotational molding processes using such polymer composition results in faster densification, which allows for reduction in overall cycle times for making the hollow articles.[French]
La présente invention concerne des procédés de moulage par rotation pour produire des articles creux qui comprennent les étapes consistant à : a) remplir un moule avec une composition polymère comprenant : i) un polymère organique ; et ii) un accélérateur de densification de moulage par rotation (RMDA) choisi dans le groupe constitué par des alcools gras alcoxylés, des esters gras alcoxylés, des amines grasses alcoxylées, des amides gras alcoxylés, et des combinaisons de ceux-ci ; b) faire tourner le moule autour d'au moins un axe tout en chauffant le moule dans un four, ce qui permet de fusionner la composition et de l'étaler sur les parois du moule ; c) refroidir le moule ; et d) ouvrir le moule ; et e) retirer l'article creux du moule. Les procédés de moulage par rotation utilisant une telle composition polymère conduisent à une densification plus rapide, ce qui permet une réduction des temps de cycle globaux pour fabriquer les articles creux.