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.

Date of Patent:
Apr. 21, 2025

Filed:

May. 12, 2024
Applicant:

Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, CN;

Inventors:

He Liu, Nanjing, CN;

Xinxin Yang, Nanjing, CN;

Bowen Zhang, Nanjing, CN;

Shibin Shang, Nanjing, CN;

Zhanqian Song, Nanjing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 19/16 (2005.12); D21B 1/08 (2005.12); D21C 5/02 (2005.12); D21H 11/14 (2005.12); D21H 21/16 (2005.12); D21J 1/04 (2005.12);
U.S. Cl.
CPC ...
D21H 19/16 (2012.12); D21B 1/08 (2012.12); D21C 5/022 (2012.12); D21H 11/14 (2012.12); D21H 21/16 (2012.12); D21J 1/04 (2012.12);
Abstract

The present invention discloses a preparation method and recycling method for degradable and recyclable paper plastics with water resistance and high-strength. By coating cyclic carbonate and amine compounds on paper, these compounds penetrate the paper's fiber structure, followed by curing treatment, resulting in a recyclable, degradable, and reprocessed paper plastic material with water resistance and high-strength. This method involves coating only cyclic carbonate and amines onto the paper, which, after heating, yields the paper plastic. The invention offers versatility, enhancing various paper types with improved mechanical properties, temperature resistance, water resistance, and solvent resistance while maintaining degradation capability. The paper plastic exhibits excellent self-healing, plasticity, degradation, and reprocessing properties. The process method is straightforward and user-friendly, making it suitable for industrial-scale production.


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