PATENT CLAIM ANALYSIS

Application Number: 16047531
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["514", "630000"]

Abstract:
Provided are an alkyl cellulose excellent in formability when added even in a small amount and not causing marked delay in disintegration; a solid preparation comprising it; and a method for producing the solid preparation. More specifically, provided are an alkyl cellulose for use in tableting, the alkyl cellulose having a specific surface area of from 0.5 to 10.0 m 2 /g as measured by BET method and a solid preparation comprising the alkyl cellulose. Also provided is a method for producing the alkyl cellulose, comprising the steps of: bringing pulp into contact with an alkali metal hydroxide solution to obtain alkali cellulose, reacting the alkali cellulose with an etherifying agent to obtain a first alkyl cellulose, pulverizing the first alkyl cellulose, and depolymerizing the pulverized first alkyl cellulose through hydrolysis with an acid catalyst or through oxidative decomposition with an oxidant to obtain a second alkyl cellulose.

Claim (Index 1):
A method for producing methyl cellulose for use in tableting, the methyl cellulose having a specific surface area of from 0.5 to 10.0 m 2 /g as measured by BET method, and the method comprising the steps of:\n bringing pulp into contact with an alkali metal hydroxide solution to obtain alkali cellulose, reacting the alkali cellulose with an etherifying agent to obtain first methyl cellulose, pulverizing the first methyl cellulose, and depolymerizing the pulverized first methyl cellulose through hydrolysis in the presence of an acid catalyst or through oxidative decomposition in the presence of an oxidant to obtain second methyl cellulose, and pulverizing the second methyl cellulose.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 95.0
- Lexical Diversity: 1.95122
- Patent Class: 514.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14880755', '15622354', '15450151', '15722592', '15722636']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.77298543289851
- 35 USC 102 Novelty (BERT): 0.5301634398222899
- Combined Prediction Score: 0.748703233590888
- Mean Citation Score: 302.626588
- Max Citation Score: 347.95937999999984
- Similarity Product: 281.04821475290527

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