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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12397474 B1

PDFFull Text
Date of Patent:
Aug. 26, 2025

Filed:

Nov. 25, 2020

Process for the batch reactive mixing and degassing of thermosetting polymers and device implementing said process

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Yasuaki Baba, Kyoto, JP;

Tetsuya Sakata, Kyoto, JP;

Shigeru Kohara, Kyoto, JP;

Ryosuke Eto, Kyoto, JP;

Philippe Jeantin, Alixan, FR;

Jean-Paul Rodrigues, Chateauneuf-sur-Isere, FR;

Assignees:

Covestro Deutschland AG, Leverkusen, DE;

Shashin Kagaku Co., Ltd., Kyoto, JP;

Attorney:

The Webb Law Firm

Primary Examiner:

Marc C Howell

Int. Cl.
CPC ...
B29B 7/10 (2006.01); B01F 23/47 (2022.01); B01F 29/10 (2022.01); B01F 33/70 (2022.01); B29B 7/84 (2006.01); B01F 35/21 (2022.01); B01F 35/221 (2022.01);
U.S. Cl.
CPC ...
B29B 7/106 (2013.01); B01F 23/47 (2022.01); B01F 29/10 (2022.01); B01F 33/70 (2022.01); B29B 7/845 (2013.01); B01F 35/2117 (2022.01); B01F 35/221422 (2022.01);
Abstract

A device for the batch reactive mixing and degassing of thermosetting polymers, such as polyurethane or similar, comprising at least one hermetically sealable container () in which the batch of thermosetting polymers is to be placed, a rotary plate () on which a satellite rotary plate is rotatably mounted, the container () being placed on said satellite rotary plate in order to cause said container () to rotate and to revolve, first means for driving the rotary plate () and second means for driving the satellite rotary plate, and means () for placing the container () under vacuum; said device is noteworthy in that it comprises means for controlling the first means for driving the rotary plate () providing a speed of revolution of the container () and a second means for driving the satellite rotary plate providing a speed of rotation of said container (), said control means being capable of continuously varying the speed of revolution and the speed of rotation of the container () independently of one another. A process for the batch reactive mixing and degassing of thermosetting polymers.

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