PATENT CLAIM ANALYSIS

Application Number: 16096730
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["560", "218000"]

Abstract:
The present invention provides methods comprising distilling a reaction mixture of methacrolein and methanol used to make methyl methacrylate (MMA) in the presence of one or more strong or inorganic acids, the mixture comprising an aqueous organic component mixture of all of water, MMA, methacrolein methanol and acetals or hemiacetals of methacrolein to remove the acetals or hemiacetals of methacrolein to a level of 100 ppm or below, based on the amount of methyl methacrylate. The method reduces the amount of acetals or hemiacetals of methacrolein to well below equilibrium levels and eliminates the need for additional downstream distillation to refine the product of the reaction.

Claim (Index 7):
The method as claimed in  claim 1 , wherein the amount of the one or more strong or inorganic acid ranges from 0.1 to 5.0 wt. %, based on the total weight of acetals or hemiacetals of methacrolein in the feed stream of an aqueous organic component mixture.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 97.0
- Lexical Diversity: 1.83871
- Patent Class: 560.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15760030', '15776850', '14917114', '15776847', '15521798']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7638510216969909
- 35 USC 102 Novelty (BERT): 0.54204273914524
- Combined Prediction Score: 0.7416701934418158
- Mean Citation Score: 277.842984
- Max Citation Score: 298.62653
- Similarity Product: 217.88075008681287

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