PATENT CLAIM ANALYSIS

Application Number: 15918670
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["536", "095000"]

Abstract:
Provided is a method for producing hydroxypropyl methyl cellulose (HPMC) having high hydroxypropoxy content, low ash content, and low insoluble fiber content. More specifically, provided is a method for producing HPMC having a methoxy degree of substitution of from 1.4 to 2.2 and a hydroxypropoxy molar substitution of from 0.5 to 1.0, including steps of: bringing sheet-like or chip-like pulp into contact with an alkali metal hydroxide solution to obtain a reaction product mixture containing alkali cellulose, removing a liquid portion from the reaction product mixture to obtain the alkali cellulose, reacting the alkali cellulose with an etherifying agent to obtain a crude HPMC, disintegrating the crude HPMC into a disintegrated crude HPMC, dispersing the disintegrated crude HPMC in water to obtain a slurry, filtering the slurry to obtain a cake, and washing the cake.

Claim (Index 7):
The method for producing hydroxypropyl methyl cellulose according to  claim 2 , wherein the step of disintegrating the crude hydroxypropyl methyl cellulose is carried out using a kneader.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 90.0
- Lexical Diversity: 2.0
- Patent Class: 536.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14079704', '15722594', '14305174', '15853164', '14447846']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6397050057053398
- 35 USC 102 Novelty (BERT): 0.5081228380391514
- Combined Prediction Score: 0.626546788938721
- Mean Citation Score: 225.512824
- Max Citation Score: 284.8164700000001
- Similarity Product: 201.33482749813805

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