PATENT CLAIM ANALYSIS

Application Number: 15901475
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["564", "498000"]

Abstract:
The present invention relates to a method for the purification of cadaverine from an aqueous cadaverine salt composition comprising one or more involatile impurities, the method comprising: (1) mixing the aqueous cadaverine salt composition with one or more bases to provide an aqueous cadaverine composition having a pH of at least about 12; (2) distilling or evaporating the aqueous cadaverine composition to produce an aqueous cadaverine solution, wherein one or more solvents are added to the evaporation/distillation system before the evaporation/distillation stops, and the one or more solvents comprise at least one or more high boiling point (HBP) solvents having a boiling point of at least 185° C. (1 atm); and (3) subjecting the aqueous cadaverine solution to one or more rectification steps to provide a cadaverine product.

Claim (Index 16):
A cadaverine product comprising at least 99 wt. % cadaverine, and one or more HBP solvents having a boiling point of at least 185\u00b0 C. (1 atm) at a level of less than 2000 ppm, preferably less than 1000 ppm, more preferably less than 500 ppm, even more preferably less than 250 ppm, and most preferably less than 150 ppm.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 88.0
- Lexical Diversity: 2.16418
- Patent Class: 564.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15418052', '14764109', '15418071', '14764101', '14992412']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6986920553289001
- 35 USC 102 Novelty (BERT): 0.5651321404594488
- Combined Prediction Score: 0.685336063841955
- Mean Citation Score: 315.15913000000006
- Max Citation Score: 401.9255
- Similarity Product: 228.4765763623416

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