PATENT CLAIM ANALYSIS

Application Number: 16095300
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["549", "464000"]

Abstract:
A process for manufacturing crystals of 1,4:3,6-dianhydrohexitols, by manufacturing a solution of an internal dehydration product of at least one hexitol, distilling the solution, crystallizing, and wherein the crystallization mother liquors undergo a step of evaporative crystallization. Unlike the prior art processes that seek to recycle the crystallization mother liquors, evaporative crystallization economically and efficiently replaces the succession of steps consisting of at least one concentration, then at least one step of purification by distillation, chromatography, or crystallization.

Claim (Index 1):
A process for producing 1,4:3,6-dianhydrohexitol crystals, comprising the steps of:\n a) providing a solution of an internal dehydration product of at least one hexitol, b) distilling the solution resulting from step a) so as to obtain a solution of at least one 1,4:3,6-dianhydrohexitol, c) crystallizing the 1,4:3,6-dianhydrohexitol resulting from step b), d) draining the 1,4:3,6-dianhydrohexitol crystals resulting from step c), which results in a crystal-rich stream (1) and a mother liquor stream (1 bis), and wherein all or part of the mother liquor stream (1 bis) undergoes an evaporative crystallization step e) in the presence of solvent, which results in the formation of a solvent stream (2) and in the formation of a stream rich in 1,4:3,6-dianhydrohexitol crystals (2 bis).

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 1.72549
- Patent Class: 549.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10414606', '10414607', '14441444', '10943783', '12421245']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.729027674411111
- 35 USC 102 Novelty (BERT): 0.4993787684559079
- Combined Prediction Score: 0.7060627838155907
- Mean Citation Score: 250.137552
- Max Citation Score: 261.2407
- Similarity Product: 198.0724002221941

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