PATENT CLAIM ANALYSIS

Application Number: 15772643
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["508", "421000"]

Abstract:
An object of the present invention is to obtain a lubricating oil for machine tools, which has good lubricating properties and abrasion resistance and also exhibits a high flash point and a low pour point. A lubricating oil composition comprises, as a base oil, a base oil which includes an oil containing 20 mass % to 49 mass % of n-paraffin components and 51 mass % to 80 mass % of i-paraffin components at a quantity of 90 mass % or more of the total quantity of the base oil and which has a kinematic viscosity at 40° C. of 1 to 5 mm 2 /s. By blending a small quantity of β-dithiophosphorylated propionic acid and/or an acidic phosphoric acid ester in this base oil, a lubricating oil composition suitable for use for a main shaft of a machine tool is obtained. The lubricating oil composition for a main shaft of a machine tool has a flash point of 100° C. or more, a pour point of −10° C. or less, and a Shell four-ball wear mark diameter of 0.7 mm or less.

Claim (Index 5):
The lubricating oil composition for a main shaft of a machine tool according to  claim 1 , which further comprises an oxygen-containing organic compound as a solubilizing agent at a quantity of 0.01 to 5 mass % relative the total quantity of the composition.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 93.0
- Lexical Diversity: 2.12088
- Patent Class: 508.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14279500', '13317925', '13122828', '12307375', '12078308']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8234613267478268
- 35 USC 102 Novelty (BERT): 0.5354048246018909
- Combined Prediction Score: 0.7946556765332332
- Mean Citation Score: 185.766278
- Max Citation Score: 191.18596
- Similarity Product: 135.58888241580962

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