PATENT CLAIM ANALYSIS

Application Number: 15990871
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["568", "830000"]

Abstract:
A hydrogenation method for preparing HBPA includes placing a BPA reaction liquid into a hydrogenation vessel with a hollow-shaft stirrer installed inside; starting the hollow-shaft stirrer to stir the BPA reaction liquid and simultaneously allowing hydrogen gas evenly distributed over and contact well with the BPA reaction liquid; in the presence of a single-metallic Ru/Al2O3 hydrogenation catalyst to proceed with a catalytic hydrogenation at low temperature and low pressure to produce HBPA, the HBPA has a yield of 99.7% or more, and particularly having a trans/trans isomer ratio above 63%.

Claim (Index 1):
A hydrogenation method for preparing HBPA having a higher trans/trans isomers ratio from BPA, comprising the steps of:\n a) placing a BPA reaction liquid containing 5-60 wt % of BPA reactant, based on the total weight of the BPA reaction liquid, into a hydrogenation vessel provided therein with a hollow-shaft stirrer capable of extracting hydrogen gas and exhausting hydrogen gas into the BPA reaction liquid as well as stirring the BPA reaction liquid; b) adding a single-metallic Ru/Al2O3 hydrogenation catalyst in an amount of 0.02-15.0 wt % based on the weight of BPA reactant; c) maintaining constant pressure after introducing a hydrogen gas with a pressure of 40-70 bar; d) starting the hollow-shaft stirrer to stir the BPA reaction liquid, then raising the temperature to 120 to 180\u00b0 C., and undergoing a catalytic hydrogenation for 10 to 20 hours; and e) after completion of the catalytic hydrogenation reaction, cooling the reaction liquid to the room temperature, filtering out the catalyst and optionally further removing the solvent to obtain a produced HBPA having a yield of 99.7% or more as well as having a trans/trans isomers ratio of above 63%.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 1.56452
- Patent Class: 568.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14614183', '14614013', '13023610', '13517195', '14566154']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.628642598004814
- 35 USC 102 Novelty (BERT): 0.4954782484308052
- Combined Prediction Score: 0.6153261630474132
- Mean Citation Score: 180.91315
- Max Citation Score: 185.88301
- Similarity Product: 134.94233665989103

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

Dataset: test