PATENT CLAIM ANALYSIS

Application Number: 15765969
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["106", "031130"]

Abstract:
The present invention relates to an ink-jet printing method using a water-based ink containing a rutile-type titanium oxide and a polymer dispersant, in which the polymer dispersant contains a constitutional unit derived from an anionic group-containing monomer selected from the group consisting of acrylic acid, methacrylic acid and the like in an amount of not less than 72% by mass; Mw of the polymer dispersant is from 3,000 to 50,000; and a content of the polymer dispersant in the water-based ink is from 1 to 7% by mass on the basis of the titanium oxide, said method including the step 1 of redispersing the water-based ink by a dispersing means and the step 2 of printing characters or images on a printing medium using the redispersed water-based ink. According to the ink-jet printing method of the present invention, even though the titanium oxide is precipitated, it is possible to readily redisperse the titanium oxide in the water-based ink by simple stirring operations, and further by using the water-based ink whose properties can be rapidly restored owing to excellent foam suppressing properties and defoaming properties thereof, it is possible to attain good ejection properties of the ink.

Claim (Index 13):
A water-based ink for ink-jet printing comprising a rutile-type titanium oxide and a polymer dispersant, in which the polymer dispersant comprises a constitutional unit derived from at least one anionic group-containing monomer selected from the group consisting of acrylic acid, methacrylic acid, maleic acid and a sulfonic group-containing vinyl monomer in an amount of not less than 72% by mass;\n an average primary particle size of the rutile-type titanium oxide is not less than 100 nm and not more than 600 nm; a weight-average molecular weight of the polymer dispersant is not less than 3,000 and not more than 50,000; and a content of the polymer dispersant in the water-based ink is not less than 1% by mass and not more than 7% by mass on the basis of the titanium oxide.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.13265
- Patent Class: 106.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15752708', '12108544', '14653136', '14896030', '10241567']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7127398991872518
- 35 USC 102 Novelty (BERT): 0.5307987314403184
- Combined Prediction Score: 0.6945457824125585
- Mean Citation Score: 287.5477640000001
- Max Citation Score: 376.88452
- Similarity Product: 281.4357960795045

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