PATENT CLAIM ANALYSIS

Application Number: 15752815
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["562", "598000"]

Abstract:
A method of preparing (meth)acrylic acid is provided. The method of preparing (meth)acrylic acid may be used to decompose Michael adducts in a waste liquid, thereby providing (meth)acrylic acid in an economical and highly efficient manner.

Claim (Index 10):
A method of preparing (meth)acrylic acid by using a reaction distillation apparatus including a reaction distillation tower that has a structure in which a vessel, where decomposition of Michael adducts occurs, is connected to a distillation tower, where distillation of decomposition products occurs, and a heat source of the reaction distillation tower, the method comprising the steps of:\n feeding a waste liquid containing one or more Michael adducts selected from the group consisting of a dimer to a pentamer of (meth)acrylic acid, which is a waste liquid discharged in a synthesis process and/or a recovery process of (meth)acrylic acid, to the reaction distillation apparatus; and producing and recovering (meth)acrylic acid from the Michael adducts by performing decomposition and distillation of the waste liquid, wherein the step of producing and recovering (meth)acrylic acid is performed while the waste liquid is circulated in the reaction distillation apparatus by a gas which is fed separately from the waste liquid.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 1.45455
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11634133', '13702533', '11655113', '10859221', '12521684']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7216215422451847
- 35 USC 102 Novelty (BERT): 0.4996918486235207
- Combined Prediction Score: 0.6994285728830183
- Mean Citation Score: 258.91269
- Max Citation Score: 283.26315
- Similarity Product: 257.80293761934934

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