PATENT CLAIM ANALYSIS

Application Number: 16068259
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["568", "433000"]

Abstract:
There is provided a method for producing hydroxypivalaldehyde (HPA), including steps (i) to (iii) below in this order, Step (i): a reaction step of reacting IBAL with FA to produce a reaction solution containing HPA, step (ii): an extraction step of extracting the reaction solution with an aldehyde solvent represented by formula (1) under basicity to obtain an extract containing HPA, and step (iii): a distillation and collection step of distilling the extract and then collecting HPA from the residue, wherein R represents a saturated alkyl group having 3 or more and 7 or less carbon atoms, further wherein the distillation step of the step (iii) is a step of distilling an extract in the presence of water, and an amount of the water which is subjected to the distillation is 100 parts by mass or more and 2,000 parts by mass or less, with respect to a total amount, 100 parts by mass, of isobutyraldehyde (IBAL) derived from a raw material and an aldehyde solvent represented by formula (1) in an extract which is subjected to the distillation. The method enables HPA to be mass-produced and the collecting ratio of HPA to be improved while selectively removing impurities other than water contained in HPA, specifically IBAL and the like. According to the method for producing HPA as mentioned above, it is possible to reduce the content of neopentyl glycol-isobutyrate, isobutylaldehyde-hydroxypivalaldehyde-acetal, and isobutylaldehyde-hydroxypivalaldehyde-aldol as specific impurities byproduced from HPA.

Claim (Index 3):
The method according to  claim 1 , further comprising\n concentrating the extract after said extracting and before said distilling.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 2.40517
- Patent Class: 568.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16078292', '15538922', '11063606', '11498871', '12737224']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6863460579371174
- 35 USC 102 Novelty (BERT): 0.5192608005311949
- Combined Prediction Score: 0.6696375321965252
- Mean Citation Score: 230.175346
- Max Citation Score: 270.5157
- Similarity Product: 173.05903406857254

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

Dataset: test