Method for preparing biomass-based conductive hydrogel by 3D printing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11492435
SERIAL NO

17423118

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for preparing a biomass-based conductive hydrogel by 3D printing is provided. Firstly, a cellulose-based macromonomer, a rosin-based monomer, an acrylic acid monomer and an initiator are mixed in a certain proportion, stirred, and dissolved at 25-70° C. Then, diisocyanate in an amount of 5-10 wt % of a total mass of the monomers is added to the mixed solution and mixed uniformly to prepare a 3D printing photosensitive resin solution. An SLA light-curing 3D printer is used to print a hydrogel precursor 1 with a complex shape. Next, the hydrogel precursor 1 is heated to obtain a hydrogel precursor 2 with a dual-curing network. Finally, the obtained hydrogel precursor 2 is swelled in a 1-15 wt % alkaline solution at 5-60° C. for 0.1-10 hours to obtain the biomass-based conductive hydrogel.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS CAF

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chu, Fuxiang Jiangsu, CN 1 0
Lu, Chuanwei Jiangsu, CN 1 0
Wang, Chunpeng Jiangsu, CN 5 3
Wang, Jifu Jiangsu, CN 4 8

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 8, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 May 8, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 8, 2034
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00