PATENT CLAIM ANALYSIS

Application Number: 16091475
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["548", "549000"]

Abstract:
The present invention relates to a synthesis method of N-substituted maleimides using a non-homogeneous solid acid catalyst, and particularly, a synthesis method of N-substituted maleimides with high synthesis yield by using a zirconium(IV) hydrogen phosphate as a catalyst, by which, the loss of the catalyst is minimized, the separation and recovering processes of the catalyst are simplified, in case when the activity of the separated and recovered catalyst is decreased, the complete regeneration of the catalyst is possible via washing or firing, and solvents that could be used during a washing process of the catalyst are not limited.

Claim (Index 11):
The method of synthesizing N-substituted maleimides of  claim 1 , wherein the N-substituted maleimide is one or more selected from the group consisting of N-alkyl maleimide such as N-methyl maleimide, N-ethyl maleimide, N-hexyl maleimide, N-octyl maleimide, and N-dodecyl maleimide; N-benzylmaleimide; N-cycloalkyl maleimide such as N-cyclohexyl maleimide; N-phenyl maleimide; and N-substituted phenyl maleimide in which a phenyl group is substituted with nitro, alkoxy, alkyl, carboxyl, hydroxyl, or a halogen atom, such as N-nitrophenyl maleimide, N-methoxyphenyl maleimide, N-methylphenyl maleimide, N-carboxyphenyl maleimide, N-hydroxyphenyl maleimide, N-chlorophenyl maleimide, N-dimethylphenyl maleimide, N-dichlorophenyl maleimide, N-bromophenyl maleimide, N-dibromophenyl maleimide, N-trichlorophenyl maleimide, and N-tribromophenyl maleimide.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 97.0
- Lexical Diversity: 1.71875
- Patent Class: 548.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16091091', '12999420', '14006751', '11814200', '13252761']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7306484179786112
- 35 USC 102 Novelty (BERT): 0.4906317341976303
- Combined Prediction Score: 0.7066467496005132
- Mean Citation Score: 195.291446
- Max Citation Score: 228.21799
- Similarity Product: 180.46395300637124

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test