PATENT CLAIM ANALYSIS

Application Number: 15868151
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-02
Patent Classification: ["264", "307000"]

Abstract:
The present invention discloses a method for preparing a double-network hydrogel tube with a complex structure. Iron wires of different sizes are mechanically polished, arranged in different manners, and then immersed into a monomer prepolymer solution, or a monomer prepolymer is poured into a container containing iron wires of different arranged shapes to conduct a polymerization reaction, such that a uniform primary-crosslinked single-network hydrogel film can be rapidly grown on the surface of each iron wire. The hydrogel film is then immersed in a secondary-crosslinking solution for secondary crosslinking to build a double-network hydrogel film. After immersion processing, the wires are drawn out to obtain high-strength hollow double-network hydrogel tubes of different shapes. The hydrogel tube has a diameter of 10 micrometers to a few millimeters, the shape of the tube inner structure is highly controllable, and the tensile strength of the hydrogel tube can be up to 2 MPa.

Claim (Index 1):
A method for preparing a double-network hydrogel tube with a complex structure, wherein the method comprises the following sequential steps:\n 1) immersing polished iron wires of different sizes in a monomer prepolymer solution, or pouring a monomer prepolymer solution into a container containing iron wires of different arranged shapes to conduct a polymerization reaction, such that a uniform chemically-crosslinked hydrogel layer is formed on the surface of each iron wire, aging, and then washing by soaking in pure water to obtain a primary-crosslinked single-network hydrogel film; and 2) immersing iron wires having grown hydrogel films in a secondary-crosslinking solution selected from an aqueous solution of calcium ions, an aqueous solution of magnesium ions, an aqueous solution of ferric ions, or an aqueous solution of tannic acid for 5 min to 20 h, and then drawing the iron wires out to obtain high-strength double-network hydrogel tubes of different shapes.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 1.84091
- Patent Class: 264.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15691829', '13899357', '09804935', '15272305', '13865068']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.803851155561607
- 35 USC 102 Novelty (BERT): 0.4868599780896863
- Combined Prediction Score: 0.772152037814415
- Mean Citation Score: 193.679102
- Max Citation Score: 199.8233
- Similarity Product: 140.42717538098094

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test