PATENT CLAIM ANALYSIS

Application Number: 15921146
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["536", "085000"]

Abstract:
Provided is a method for producing a hydroxyalkyl alkyl cellulose having high thermal gel strength while suppressing a reduction in thermal gelation temperature. More specifically, provided is a method for producing a hydroxyalkyl alkyl cellulose including steps of: mixing cellulose pulp with a first alkali metal hydroxide solution to obtain alkali cellulose, reacting the alkali cellulose with an alkylating agent and a hydroxyalkylating agent to obtain a first reaction product mixture, adding a second alkali metal hydroxide solution to the first reaction product mixture without further adding any of alkylating and hydroxyalkylating agents to obtain a second reaction product mixture, and subjecting the second reaction product mixture to purification to obtain a hydroxyalkyl alkyl cellulose.

Claim (Index 5):
The method for producing a hydroxyalkyl alkyl cellulose according to  claim 1 , wherein an addition rate of the second alkali metal hydroxide, defined as a mole amount of the second alkali metal hydroxide added to the first reaction product mixture per hour per mole of the cellulose in cellulose pulp, is 2.8 to 7.5 [mol/mol\u00b7hr].

Metadata:
- Claim Count in Document: 3.0
- Percentile: 90.0
- Lexical Diversity: 2.14035
- Patent Class: 536.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13144948', '15450151', '10197070', '14858575', '10626338']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6646877432037572
- 35 USC 102 Novelty (BERT): 0.5041714195243234
- Combined Prediction Score: 0.6486361108358139
- Mean Citation Score: 267.96354
- Max Citation Score: 284.56146
- Similarity Product: 213.8514002568555

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