PATENT CLAIM ANALYSIS

Application Number: 16081285
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["562", "509000"]

Abstract:
An object of the present invention is to provide a powder of high-purity 1,4-cyclohexanedicarboxylic acid with excellent powder flowability. The invention provides a powder of high-purity 1,4-cyclohexanedicarboxylic acid having particle size distributions (volume basis) such that D 10  is within a range of 5 to 55 μm, D 50  is within a range of 40 to 200 μm, and D 90  is within a range of 170 to 800 μm; and having an aerated bulk density of 0.4 to 0.8 g/cm 3 , a packed bulk density of 0.5 to 1.0 g/cm 3 , and a compressibility of 10 to 23%.

Claim (Index 5):
A method for producing powdery 1,4-cyclohexanedicarboxylic acid,\n the method comprising the steps of: (1) subjecting dialkyl (C1-C4) terephthalate to nuclear hydrogenation to obtain dialkyl (C1-C4) 1,4-cyclohexanedicarboxylate; (2) hydrolyzing the dialkyl (C1-C4) 1,4-cyclohexanedicarboxylate obtained in step (1) in the presence of an acid catalyst in the presence of water or a water-containing solvent to obtain 1,4-cyclohexanedicarboxylic acid; (3) crystallizing the 1,4-cyclohexanedicarboxylic acid obtained in step (2); (4) subjecting the crystals of the 1,4-cyclohexanedicarboxylic acid obtained in step (3) to solid-liquid separation; and (5) drying, drying and granulating, or drying and crushing wet crystals of the 1,4-cyclohexanedicarboxylic acid obtained in step (4); and optionally (6) classifying a powder of the 1,4-cyclohexanedicarboxylic acid obtained in step (5).

Metadata:
- Claim Count in Document: 9.0
- Percentile: 96.0
- Lexical Diversity: 1.81667
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15024118', '15560646', '15300464', '15329270', '09959565']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6767838116515681
- 35 USC 102 Novelty (BERT): 0.4688778324399362
- Combined Prediction Score: 0.655993213730405
- Mean Citation Score: 146.35878
- Max Citation Score: 154.33295
- Similarity Product: 119.03434858769778

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