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.:
Date of Patent:
May. 23, 2023
Filed:
Oct. 11, 2019
Applicant:
Hosokawa Alpine Aktiengesellschaft, Augsburg, DE;
Inventors:
Christian Baier, Neusäß, DE;
Felix Grimm, Augsburg, DE;
Michael Heinecker, Augsburg, DE;
Joachim Libowski, Neusäß, DE;
Assignee:
HOSOKAWA ALPINE Aktiengesellschaft, Augsburg, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/335 (2019.01); B29C 48/70 (2019.01); B29C 48/30 (2019.01); B29C 48/025 (2019.01);
U.S. Cl.
CPC ...
B29C 48/338 (2019.02); B29C 48/70 (2019.02); B29C 48/0255 (2019.02); B29C 48/3001 (2019.02);
Abstract
In the case of a die head and a process to produce multilayer tubular film made from thermoplastic polymers, the advantages of radial distributors and axial distributors should be combined. This is achieved in that at least one distributor is a plate distributor and at least one distributor is an axial distributor, whereby the plate distributor is located in an annular element of the axial distributor upstream of the melt merge zone to the ring-shaped die.