PATENT CLAIM ANALYSIS

Application Number: 15747793
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["585", "513000"]

Abstract:
The invention concerns a process for the dimerization of ethylene to 1-butene, carried out with a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PR 1 R 2 R 3  in which the groups R 1 , R 2  and R 3  may be identical or different and which may or may not be bonded together, and at least one activating agent selected from the group formed by chlorinated and brominated hydrocarbylaluminium compounds, used alone or as a mixture, said composition having a molar ratio of the phosphine ligand to the nickel precursor in the range 5 to 30 and a molar ratio of the activating agent to the phosphine ligand greater than or equal to 1.

Claim (Index 1):
A process for the dimerization of ethylene to 1-butenes, comprising bringing ethylene into contact with a catalytic composition comprising:\n at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PR 1 R 2 R 3 , in which the groups R 1 , R 2  and R 3 , which may be identical or different, and which may or may not be bonded together, are selected from aromatic groups, which may or may not be substituted and which may or may not contain heteroelements, and/or hydrocarbyl groups, which may or may not be cyclic, which may or may not be substituted and which may or may not contain heteroelements, and at least one activating agent selected from the group formed by chlorinated and brominated hydrocarbylaluminium compounds, used alone or as a mixture, said composition having a molar ratio of the phosphine ligand to the nickel precursor in the range 5 to 30 and a molar ratio of the activating agent to the phosphine ligand which is greater than or equal to 1, the process being carried out at a temperature in the range from a value of more than 20\u00b0 C. to +250\u00b0 C.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 86.0
- Lexical Diversity: 1.80519
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16062725', '15748494', '14694216', '14694052', '13604038']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6829535681386215
- 35 USC 102 Novelty (BERT): 0.5046270475536998
- Combined Prediction Score: 0.6651209160801294
- Mean Citation Score: 245.91571200000004
- Max Citation Score: 297.77417
- Similarity Product: 265.8203974094737

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