Invention Grant
- Patent Title: Method and device for producing powdery substances from plastic
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Application No.: US16479422Application Date: 2018-01-09
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Publication No.: US11000973B2Publication Date: 2021-05-11
- Inventor: Axel Dressler
- Applicant: Dressler Group GmbH & Co. KG
- Applicant Address: DE Meckenheim
- Assignee: Dressler Group GmbH & Co. KG
- Current Assignee: Dressler Group GmbH & Co. KG
- Current Assignee Address: DE Meckenheim
- Agency: McCarter & English, LLP
- Priority: DE102017100981.7 20170119
- International Application: PCT/EP2018/050468 WO 20180109
- International Announcement: WO2018/134087 WO 20180726
- Main IPC: B29B9/12
- IPC: B29B9/12 ; B01J2/02 ; B29B9/06 ; B29B9/02 ; B33Y70/00 ; B29K71/00

Abstract:
The invention relates to a method for producing powdery plastic particles having as spherical a structure as possible, wherein a starting product (30) made of plastic, in particular a viscous to solid starting product (30), is brought into contact with a smooth surface (24) of a body (20), which is moved at a speed v of at least 5 m/s relative to the starting product (30). In the contact area (34) between the starting product (30) and the body (20), the starting product (30) is heated locally, and is flung in powdery form out of the contact area in the direction of movement of the body (20).
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