PATENT CLAIM ANALYSIS

Application Number: 15913944
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["562", "599000"]

Abstract:
A method of making acrylic acid in liquid phase by contacting a feed stream containing lactic acid, lactide, or mixtures thereof with a molten salt catalyst comprising a protic ionic liquid (PIL), which contains a bromide anion (Br − ), is provided.

Claim (Index 1):
A method of making acrylic acid comprising the steps:\n a. contacting a feed stream comprising lactic acid, lactide, or mixtures thereof with a first molten salt catalyst in a first reactor at a first reaction temperature and a first reaction time to produce a first stream comprising 2-bromopropionic acid (2-BrPA); b. contacting said 2-BrPA with a second molten salt catalyst in a second reactor at a second reaction temperature and a second reaction time to produce a second stream comprising 3-bromopropionic acid (3-BrPA) and said acrylic acid; and c. contacting said 3-BrPA with an amine in a third reactor at a third reaction temperature and a third reaction time to produce a third stream comprising said acrylic acid; wherein said first molten salt catalyst comprises a bromide anion (Br \u2212 ); wherein said second molten salt catalyst comprises a Br \u2212 ; wherein said acrylic acid of said second stream is combined with said acrylic acid of said third stream into a production stream of said acrylic acid; and wherein said acrylic acid in said production stream has an overall acrylic acid yield and an overall acrylic acid selectivity.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 1.25
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15868002', '15661016', '16063435', '15342428', '13760472']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7464289316919378
- 35 USC 102 Novelty (BERT): 0.5748955351569051
- Combined Prediction Score: 0.7292755920384345
- Mean Citation Score: 348.350646
- Max Citation Score: 484.91544000000016
- Similarity Product: 381.1694973991872

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test