PATENT CLAIM ANALYSIS

Application Number: 16078292
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["549", "335000"]

Abstract:
The present invention provides a method for producing a diol having a cyclic acetal skeleton, in which the method include an acetalization reaction step of obtaining a diol having a cyclic acetal skeleton by subjecting raw material hydroxypivalaldehyde and at least pentaerythritol and/or trimethylolpropane to an acetalization reaction under an acid catalyst and the raw material hydroxypivalaldehyde can contain a prescribed amount of at least one impurity selected from the group consisting of formaldehyde, neopentyl glycol, an ester compound having a neopentyl glycol skeleton represented by formula (III), and isobutyraldehyde.

Claim (Index 1):
A method for producing a diol having a cyclic acetal skeleton, the method comprising:\n conducting an acetalization reaction of a raw material hydroxypivalaldehyde and at least pentaerythritol and/or trimethylolpropane under an acid catalyst to obtain the diol, wherein the raw material hydroxypivalaldehyde comprises an impurity selected from the group consisting of formaldehyde, neopentyl glycol, isobutyraldehyde and an ester compound having a neopentyl glycol skeleton of formula (III); wherein R represents a hydrocarbon group having 1 to 4 carbon atoms, a hydrocarbon group having a hydroxy group and having 1 to 4 carbon atoms, or a hydrogen atom, and wherein when the impurity comprises the formaldehyde, a content of the formaldehyde is 0.80% by mass or less; when the impurity comprises the neopentyl glycol and/or the ester compound, a total molar concentration of the neopentyl glycol and/or the ester compound is 0.100 mol/kg or less; and when the impurity comprises the isobutyraldehyde, a content of the isobutyraldehyde is 0.05% by mass or less, all based on 100% by mass of the raw material hydroxypivalaldehyde.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 96.0
- Lexical Diversity: 1.59016
- Patent Class: 549.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16068259', '13081353', '12737388', '11063606', '11542274']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7321269550808699
- 35 USC 102 Novelty (BERT): 0.5048206072638298
- Combined Prediction Score: 0.7093963202991659
- Mean Citation Score: 229.36133
- Max Citation Score: 288.4963
- Similarity Product: 246.05544157582523

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

Dataset: test