PATENT CLAIM ANALYSIS

Application Number: 15979993
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["162", "056000"]

Abstract:
The present invention relates to microfibrillated cellulose (“MFC”), in particular to microfibrillated cellulose, which is morphologically different from conventional MFC known in the art and/or which provides improved water retention properties and/or improved rheological properties, in particular increased zero shear viscosity, ηo, (also known as: “viscosity at rest”, i.e. viscosity in the absence of shear forces), in solution, in particular in polyethylene glycol (PEG) as solvent, vis-a-vis conventional MFC as known in the art.

Claim (Index 1):
Process for the manufacture of microfibrillated cellulose, said process comprising at least the following steps:\n a) subjecting a cellulose pulp to at least one mechanical pretreatment step; b) subjecting the mechanically pretreated cellulose pulp of step (a) to a homogenizing step, which results in fibrils and fibril bundles of reduced length and diameter vis-\u00e0-vis the cellulose fibers present in the mechanically pretreated cellulose pulp of step (a), said step (b) resulting in microfibrillated cellulose; characterized in that the homogenizing step (b) involves compressing the cellulose pulp from step (a) and subjecting the cellulose pulp to a pressure drop, by expanding the cellulose through at least one orifice, providing said pressure drop between a volume segment, optionally a chamber, that is located upstream of said orifice, and another volume segment, optionally a chamber, that is located downstream of said orifice, area, wherein said pressure drop is at least 1000 bar, optionally more than 2000 bar, optionally more than 2500 bar, further optionally more than 3000 bar, wherein the residence time of a given flow segment comprising the cellulose fibers in the at least one orifice is less than 20 microseconds, optionally less than 10 microseconds, more optionally less than 2 microseconds, and wherein the cellulose fibrils are subjected to a turbulent flow regime in said volume segment, optionally a chamber, that is located downstream of said orifice.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 93.0
- Lexical Diversity: 1.84615
- Patent Class: 162.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15311730', '14441268', '15389482', '14592922', '13496109']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6963654255916304
- 35 USC 102 Novelty (BERT): 0.5737286806509005
- Combined Prediction Score: 0.6841017510975573
- Mean Citation Score: 278.116078
- Max Citation Score: 536.6912
- Similarity Product: 401.6226679374695

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

Dataset: test