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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 11911948 B1

PDFFull Text
Date of Patent:
Feb. 27, 2024

Filed:

Jul. 12, 2019

Starch-based multi-channel airflow unit and preparation method and application thereof

Applicant:

China Tobacco Guangdong Industrial Co., Ltd., Guangdong, CN;

Inventors:

Feng Li, Guangdong, CN;

Jing Hu, Guangdong, CN;

Ruifeng Zhao, Guangdong, CN;

Donge Chen, Guangdong, CN;

Zhenfu Li, Guangdong, CN;

Yibo Liu, Guangdong, CN;

Xi Liu, Guangdong, CN;

Huanwei Li, Guangdong, CN;

Assignee:

CHINA TOBACCO GUANGDONG INDUSTRIAL CO., LTD., Guangdong, CN;

Attorney:

Gang Yu

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
B29C 48/28 (2019.01); B29C 48/29 (2019.01); D01D 1/04 (2006.01); D01D 5/088 (2006.01); D01D 5/24 (2006.01); D01D 5/253 (2006.01); B29C 48/11 (2019.01); B29C 48/88 (2019.01); B29C 48/92 (2019.01); B29C 48/00 (2019.01); B29C 48/68 (2019.01); B29C 48/40 (2019.01); A24D 3/02 (2006.01); A24D 3/04 (2006.01); A24D 3/08 (2006.01); C08B 30/14 (2006.01); C08K 5/053 (2006.01); C08L 67/04 (2006.01); D01F 6/62 (2006.01); B29C 48/285 (2019.01); B29C 48/80 (2019.01); B29C 48/90 (2019.01); B29K 67/00 (2006.01); B29L 31/60 (2006.01);
U.S. Cl.
CPC ...
B29C 48/11 (2019.02); A24D 3/0237 (2013.01); A24D 3/0287 (2013.01); A24D 3/04 (2013.01); A24D 3/08 (2013.01); B29C 48/022 (2019.02); B29C 48/288 (2019.02); B29C 48/40 (2019.02); B29C 48/682 (2019.02); B29C 48/802 (2019.02); B29C 48/88 (2019.02); B29C 48/901 (2019.02); B29C 48/9115 (2019.02); B29C 48/92 (2019.02); C08B 30/14 (2013.01); C08K 5/053 (2013.01); C08L 67/04 (2013.01); D01F 6/625 (2013.01); B29C 48/0022 (2019.02); B29C 2793/009 (2013.01); B29C 2948/9258 (2019.02); B29C 2948/92209 (2019.02); B29C 2948/92704 (2019.02); B29K 2003/00 (2013.01); B29K 2067/046 (2013.01); B29L 2031/601 (2013.01); B29L 2031/608 (2013.01); D10B 2331/041 (2013.01); D10B 2401/12 (2013.01);
Abstract

The invention discloses a starch-based multi-channel airflow unit and a preparation method and an application thereof. The preparation method of the present invention comprises the following steps: melting a polylactic acid, wherein a temperature of a first temperature control zone is 135° C. to 145° C., a temperature of a second temperature control zone is 175° C. to 185° C., a temperature of a third temperature control zone is 190° C. to 200° C., and a temperature of a fourth temperature control zone is 175° C. to 185° C.; gelatinizing a starch-based material, adding the starch-based material in the third temperature control zone and fully mixing the mixture; adding a polyol in the third temperature control zone, and fully mixing the mixture; and extruding out the mixed material through twin screws, sizing in vacuum, cooling and sizing, and winding and cutting to obtain the starch-based multi-channel airflow unit.

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