PATENT CLAIM ANALYSIS

Application Number: 15756320
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["570", "136000"]

Abstract:
The present invention relates to a process for preparation of olefins containing fluorine.

Claim (Index 20):
The process for preparation of 2,3,3,3-tetrafluoropropene of  claim 10  comprising:\n a) providing a mixture of methyl chloride to chlorodifluoromethane in first reactor, wherein said mixture is either premixed or added separately; \n b) providing and contacting the heat medium with step a) mixture to form second mixture comprising 2,3,3,3-tetrafluoropropene, methyl chloride and the fluorinated compounds having a boiling point in the range of \u221214 to \u221290\u00b0 C.; \n c) drying second mixture of step b) to obtain anhydrous second mixture; \n d) subjecting the anhydrous second mixture of step c) to distillation to obtain anhydrous third mixture comprising methane, trifluoromethane, chlorotrifluoroethene, chlorodifluoromethane, tetrafluoroethyelene, vinylidene fluoride and difluoromethane and anhydrous fourth mixture comprising 2,3,3,3-tetrafluoropropene, methyl chloride, octafluorocyclobutane, chlorotrifluoroethyelene and tetrafluorochloroethane; \n e) contacting the anhydrous third mixture of step d) with molecular sieve of size 3 \u212b to 5 \u212b to obtain a fifth mixture, said mixture is free of difluoromethane; \n f) providing the fifth mixture and steam into a second reactor to obtain a second mixture; \n g) drying the second mixture to obtain anhydrous second mixture, alone or in combination with step c); \n h) subjecting the anhydrous second mixture of step g) to distillation to obtain anhydrous third mixture comprising methane, tetrafluoroethyelene, vinylidene fluoride and difluoromethane and anhydrous fourth mixture comprising 2,3,3,3-tetrafluoropropene, methyl chloride, octafluorocyclobutane, chlorotrifluoroethyelene and tetrafluorochloroethane, alone or in combination with step d); \n i) subjecting the anhydrous fourth mixture of step d) and/or step h) to distillation to obtain anhydrous sixth mixture comprising 2,3,3,3-tetrafluoropropene and methyl chloride, and another mixture comprising methyl chloride, octafluorocyclobutane, chlorotetrafluoroethane and tetrafluoroethane; \n j) contacting the anhydrous sixth mixture of step i) with molecular sieve of size 3 \u212b to 5 \u212b to obtain seventh mixture, said mixture is free of methyl chloride; and \n k) isolating 2,3,3,3-tetrafluoropropene from seventh mixture of step j).

Metadata:
- Claim Count in Document: 17.0
- Percentile: 88.0
- Lexical Diversity: 1.0
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14903411', '14486143', '15190535', '14377727', '14486125']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6892887236012083
- 35 USC 102 Novelty (BERT): 0.5002353139358826
- Combined Prediction Score: 0.6703833826346758
- Mean Citation Score: 232.17847200000003
- Max Citation Score: 235.82164
- Similarity Product: 169.44829626940012

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