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:
Apr. 26, 2016
Filed:
Oct. 14, 2011
Hiroshi Hachiya, Tokyo, JP;
Yoko Hachiya, Kurashiki, JP;
Muneaki Aminaka, Tokyo, JP;
Kazuharu Yasuda, Tokyo, JP;
ASAHI KASEI CHEMICALS CORPORATION, Tokyo, JP;
Abstract
A method for producing a condensation polymerization reaction polymer, comprising a guide polymerization step in which a molten prepolymer is supplied to the top edge of a wire guide to obtain the condensation polymerization reaction polymer, the wire guide comprising a vertical wire group consisting of a plurality of vertical wires extending in the vertical direction, which are mutually spaced in alignment at an arrangement pitch L1 (mm). In the guide polymerization step, the molten prepolymer aggregates so that a molten prepolymer mass is formed on the vertical wire, and a molten prepolymer mass is formed wherein, the width of the molten prepolymer mass measured in an alignment direction of the vertical wires at a position 200 mm below the top edge being represented as L(mm), the width Lof at least a portion of the molten prepolymer mass satisfies the inequality (1).L1<L2  (1)