PATENT CLAIM ANALYSIS

Application Number: 16114437
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-05
Patent Classification: ["430", "109400"]

Abstract:
Embodiments of the present invention are concerned with a method for producing a binder resin composition, from which a toner having excellent low-temperature fusing property, heat-resistant storage stability, durability, and image density is obtained, a binder resin composition, and a toner for development of electrostatic images including the binder resin composition. Embodiments according to the present invention are concerned with the following [1] to [3]. [1] A method for producing a binder resin composition including the following steps (1) and (2):      step (1): mixing an aromatic alcohol A 1  including an alkylene oxide adduct of bisphenol A and at least one carboxylic acid compound selected from fumaric acid and maleic acid; and step (2): further adding an aromatic alcohol A 2  including an alkylene oxide adduct of bisphenol A to the mixture obtained in the step (1) and mixing, wherein the binder resin composition includes a polyester resin having an acid value of 14 mgKOH/g or more and 30 mgKOH/g or less, and a total content of fumaric acid and maleic acid is 700 ppm by mass or less relative to the binder resin composition; and in the steps (1) and (2), a total amount of fumaric acid and maleic acid is 95 parts by mol or more and 105 parts by mol or less on the basis of 100 parts by mol of a total amount of the aromatic alcohol A 1  and the aromatic alcohol A 2 .       [2] A toner for development of electrostatic images, including the binder resin composition obtained by the production method as set forth in [1]. [3] A binder resin composition including a polyester resin that is a polycondensate of an alcohol component including an alkylene oxide adduct of bisphenol A and a carboxylic acid component including at least one carboxylic acid compound selected from fumaric acid and maleic acid, wherein      the polyester resin has an acid value of 14 mgKOH/g or more and 30 mgKOH/g or less, and in the binder resin composition, a total content of fumaric acid and maleic acid is 700 ppm by mass or less relative to the binder resin composition, and a total amount of fumaric acid and maleic acid is 95 parts by mol or more and 105 parts by mol or less on the basis of 100 parts by mol of a total amount of the alcohol component.

Claim (Index 6):
The method for producing a binder resin composition according to  claim 1 , wherein the step (2) is a step of further adding the aromatic alcohol A 2  at a temperature T 2  of 180\u00b0 C. or higher and lower than 225\u00b0 C. and mixing until a softening point of the resin in the system falls within a range of 90\u00b0 C. or higher and 105\u00b0 C. or lower.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 4.13084
- Patent Class: 430.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['12434158', '13644025', '15768955', '13827967', '13038607']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8121371060969426
- 35 USC 102 Novelty (BERT): 0.5225571878726757
- Combined Prediction Score: 0.7831791142745158
- Mean Citation Score: 316.15681600000005
- Max Citation Score: 340.99683
- Similarity Product: 221.394905508222

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