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:
Jun. 23, 1987
Filed:
Sep. 15, 1986
Junichi Umetsu, Sapporo, JP;
Hoxan Corporation, Sapporo, JP;
Abstract
A method for producing a polyacetylene film by introducing acetylene gas into a vessel for storing Ziegler-Natta catalyst to polymerize the acetylene gas with the catalyst which comprises a film forming projecting flat section having a film forming flat surface projected from the surface of the Ziegler-Natta catalyst stored in the bottom of the vessel, thereby coating the Ziegler-Natta catalyst on the inner surface of the side wall of the vessel and the film forming flat surface. Thus, the acetylene gas introduced into the vessel is polymerized with the catalyst to produce the polyacetylene film. In this manner, the polyacetylene film having a constant thickness of high quality can be produced with the Ziegler-Natta catalyst of the suitable amount by providing the film forming flat surface even in the bottom of the vessel, thereby improving the production efficiency.