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:
Aug. 24, 2021
Filed:
Dec. 29, 2020
Cofco (Jilin) Bio-chemical Technology Co., Ltd, Changchun, CN;
Nutrition & Health Research Institute, Cofco Corporation, Beijing, CN;
Jilin Cofco Biomaterial Co., Ltd, Changchun, CN;
Cofco Biotechnology Co., Ltd., Bengbu, CN;
COFCO (jilin) Bio-Chemical Technology Co., Ltd, Changchun, CN;
Nutrition & Health Research Institute, COFCO Corporation, Beijing, CN;
Jilin COFCO Biomaterial Co., Ltd, Changchun, CN;
COFCO Biotechnology Co., Ltd., Bengbu, CN;
Abstract
The present invention relates to the field of devolatilization, and discloses a polylactic acid devolatilization evaporator, which comprises: a container comprising a cylinder; an agitating shaft coaxial with the cylinder; an agitating belt connected to the agitating shaft and arranged in a spiral shape around the central axis of the cylinder, comprising an outer belt surface facing the inner circumferential surface of the cylinder and spaced apart from the inner circumferential surface of the cylinder. With the above technical scheme, the agitating belt makes the materials distributed more uniformly on the inner circumferential surface of the cylinder and form a thin layer in uniform thickness, thereby avoids agglomeration of the materials, facilitates uniform heating of the materials, avoids deterioration (e.g., darkened color) of the materials owing to non-uniform heating of the materials and excessive retention time in a high-temperature environment, and improves product quality.