PATENT CLAIM ANALYSIS

Application Number: 16155027
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["562", "600000"]

Abstract:
A method for purifying methacrylic acid, including mixing raw material methacrylic acid and methanol; precipitating a crystal of methacrylic acid from the mixed solution; and separating the crystal and mother liquor, wherein the raw material methacrylic acid and methanol are mixed so that a concentration of methanol in the mixed liquid is 3.0 to 3.75% by mass, and the crystal of methacrylic acid is precipitated from the mixed solution in a cooling crystallization vessel.

Claim (Index 2):
The method for purifying methacrylic acid according to  claim 1 , wherein a temperature in the cooling crystallization vessel is controlled in the range of 4 to 8\u00b0 C.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 97.0
- Lexical Diversity: 1.84091
- Patent Class: 562.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14366673', '12048254', '13147643', '12299935', '11634133']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7095050533630474
- 35 USC 102 Novelty (BERT): 0.5120113123264063
- Combined Prediction Score: 0.6897556792593832
- Mean Citation Score: 186.32266
- Max Citation Score: 250.27774
- Similarity Product: 166.66552428676366

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