PATENT CLAIM ANALYSIS

Application Number: 16064013
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["570", "160000"]

Abstract:
The present invention concerns a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a), chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E) said method comprising the steps consisting of: a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and said at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a) chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E); and ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene. The invention also concerns a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene.

Claim (Index 22):
The process as claimed in  claim 14 , further comprising recovering the stream comprising 2,3,3,3-tetrafluoro-1-propene formed in step b) and freeing said stream of at least one compound selected from the group consisting of 1,1-difluoroethane (152a), chloropentafluoroethane (115) and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E).

Metadata:
- Claim Count in Document: 2.0
- Percentile: 94.0
- Lexical Diversity: 2.53448
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16063301', '16063304', '16063302', '15267599', '12278789']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7289876983464707
- 35 USC 102 Novelty (BERT): 0.6779772163292953
- Combined Prediction Score: 0.7238866501447532
- Mean Citation Score: 528.21127
- Max Citation Score: 805.5877
- Similarity Product: 625.2980822160125

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