PATENT CLAIM ANALYSIS

Application Number: 16036580
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["528", "414000"]

Abstract:
Provided is a method to produce an alkylene oxide polymer having a high polymerization degree on an industrial scale and with high reproducibility. The method includes the step of carrying out a polymerization reaction of an alkylene oxide in an inert hydrocarbon solvent in the presence of a zinc catalyst to produce an alkylene oxide polymer. The zinc catalyst is produced by reaction of an organozinc compound with a monohydric alcohol in an amount of 12-fold equivalent or less relative to the amount of the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2- to 1.1-fold equivalent relative to the amount of the organozinc compound. The polymerization reaction is carried out under such a condition that the amount of the monohydric alcohol in the polymerization reaction system becomes 0.01-fold equivalent or less relative to the amount of the organozinc compound.

Claim (Index 1):
A method for the production of an alkylene oxide polymer comprising polymerizing an alkylene oxide in the presence of a zinc catalyst in an inert hydrocarbon solvent to produce an alkylene oxide polymer, wherein the method comprises:\n (a) preparing a zinc catalyst by reacting an organozinc compound with a monohydric alcohol in an amount of 12 equivalents or less relative to the organozinc compound and an aliphatic polyhydric alcohol in an amount of 0.2 to 1.1 equivalents relative to the organozinc compound, (b) distilling the zinc catalyst obtained by step (a) at a temperature not exceeding 100\u00b0 C. such that the amount of the monohydric alcohol in the polymerization reaction is 0.01 equivalents or less relative to the organozinc compound, and (c) polymerizing the alklyene oxide in the presence of the zinc catalyst in which the amount of the monohydric alcohol has been adjusted to 0.01 equivalents or less relative to the organozinc compound.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 95.0
- Lexical Diversity: 2.45
- Patent Class: 528.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14123340', '14123296', '15035407', '15035411', '13321118']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7397925776993064
- 35 USC 102 Novelty (BERT): 0.4910268324733824
- Combined Prediction Score: 0.714916003176714
- Mean Citation Score: 219.128754
- Max Citation Score: 261.71326
- Similarity Product: 212.36906674548385

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