PATENT CLAIM ANALYSIS

Application Number: 15781653
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["568", "604000"]

Abstract:
Disclosed is a method for preserving an α,α-difluoroacetaldehyde alkyl hemiacetal of the following formula in a gas-liquid state having gas and liquid phases in a closed container under an atmosphere of oxygen (O 2 ) or inert gas, characterized by: controlling the oxygen concentration of the gas phase in the container to be 5000 ppm or lower; and then storing the α,α-difluoroacetaldehyde alkyl hemiacetal in the container under light-shielding conditions where R 1  represents an alkyl group or a substituted alkyl group. It is possible by this method to suppress conversion of the α,α-difluoroacetaldehyde alkyl hemiacetal to difluoroacetic acid over a long term.

Claim (Index 7):
The method according to  claim 3 , further comprising: producing the \u03b1,\u03b1-difluoroacetaldehyde alkyl hemiacetal of the general formula [3] by reaction of an \u03b1,\u03b1-difluoroacetate of the general formula [5] with hydrogen (H 2 ) in an alcohol solvent of the general formula [2] in the presence of a base and a ruthenium catalyst; and using the hemiacetal as a starting raw material where R 2  represents an alkyl group or a substituted alkyl group\n R 1 \u2014OH \u2003\u2003[2] \n where R 1  represents an alkyl group or a substituted alkyl group.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 1.69118
- Patent Class: 568.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14761774', '15227628', '16071829', '15326808', '14233629']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7147082612443643
- 35 USC 102 Novelty (BERT): 0.5331209370093599
- Combined Prediction Score: 0.6965495288208639
- Mean Citation Score: 308.423174
- Max Citation Score: 350.4191
- Similarity Product: 286.29955894737253

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