PATENT CLAIM ANALYSIS

Application Number: 15747894
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["210", "500230"]

Abstract:
The present disclosure relates to improved semipermeable membranes based on acrylonitrile copolymers for use in dialyzers for the extracorporeal treatment of blood in conjunction with hemodialysis, hemofiltration or hemodiafiltration. The present disclosure further relates to methods of producing such membranes.

Claim (Index 22):
A method for preparing a hollow fiber membrane according to  claim 16 , comprising the steps of\n (a) forming a polymer composition consisting of\n i) about 34 wt.-% to about 36 wt.-% of acrylonitrile and sodium methallylsulfonate in a molar ratio of between 90:10 and 99:1; \n ii) about 50 wt.-% to about 58 wt.-% of a solvent selected from the group of solvents consisting of DMF, DMSO and NMP; and \n iii) about 6 wt.-% to about 16 wt.-% of glycerol, wherein all components add up to 100% in the final polymer composition; \n (b) heating the composition of (a) to a temperature in the range of from about 110\u00b0 C. to about 150\u00b0 C.; (c) passing the composition through a spinning nozzle comprising two concentric rings which enclose the polymer composition, and a center opening which is perfused with an inert gas; (d) after passage of an air gap of from about 0.8 m to about 1.9 m passing the preformed hollow fiber of (c) into a spinning bath; characterized in that the temperature of the spinning bath of step (d) is in the range of from about 30\u00b0 C. to about 45\u00b0 C.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 86.0
- Lexical Diversity: 1.30303
- Patent Class: 210.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16329887', '12305362', '09937558', '15115951', '10203106']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.745707397912765
- 35 USC 102 Novelty (BERT): 0.5606453173890341
- Combined Prediction Score: 0.7272011898603918
- Mean Citation Score: 255.059436
- Max Citation Score: 424.43097
- Similarity Product: 396.2593570804096

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

Dataset: test