PATENT CLAIM ANALYSIS

Application Number: 16063301
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["570", "178000"]

Abstract:
The invention relates to a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) using a first composition comprising 2,3,3,3-tetrafluoro-1-propene, 1,1,1,2,2-pentafluoropropane (245cb) and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), said method comprising the steps of: (a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; (b) extractive distillation of said second composition in order to form a third composition comprising said organic extraction agent and trans-1,3,3,3-tetrafluoro-I-propene (I234ze-E), and a stream comprising the 2,3,3,3-tetrafluoro-I-propene and the 1,1,1,2,2-pentafluoropropane (245cb); and (c) recovery and separation of said third composition in order to form a stream comprising said organic extraction agent and a stream comprising the trans-1,3,3,3-tetrafluoro-I-propene (1234ze-E). The invention also relates to a method for producing 2,3,3,3-tetrafluoro-I-propene.

Claim (Index 19):
The process as claimed in  claim 18 , wherein said at least one of the compounds selected from the group consisting of chloromethane (40), 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), chloropentafluoroethane (115), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf) is also contained in said second and third compositions; and step c) of the process comprises recovering and separating said third composition to form, on the one hand, a stream comprising said organic extracting agent and, on the other hand, a stream comprising trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E) and said at least one of the compounds selected from the group consisting of chloromethane (40), 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), chloropentafluoroethane (115), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf).

Metadata:
- Claim Count in Document: 2.0
- Percentile: 94.0
- Lexical Diversity: 2.55357
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16064013', '16063302', '16063304', '14643668', '13281063']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7934296492621122
- 35 USC 102 Novelty (BERT): 0.6172569344804749
- Combined Prediction Score: 0.7758123777839485
- Mean Citation Score: 555.11697
- Max Citation Score: 659.5174599999998
- Similarity Product: 481.5619941225074

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