PATENT CLAIM ANALYSIS

Application Number: 15755025
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["524", "458000"]

Abstract:
A method for producing an aqueous dispersion of hollow polymer particles including: a core formation step wherein core polymer particles are formed by copolymerizing a monomer mixture; a first shell layer formation step wherein first shell layers that cover the particles are formed by copolymerizing a monomer mixture in the presence of the particles; a core swelling step wherein the particles are swelled by adding a base into an aqueous dispersion containing the particles, which have been provided with the first shell layers, and setting the pH of the aqueous dispersion to 7 or more; a polymerization stopping step wherein the polymerization is stopped after the core swelling step; and a shell swelling step wherein the first shell layers are swelled by adding a monomer mixture into the aqueous dispersion containing the particles, which have been provided with the first shell layers and swelled, after the polymerization stopping step.

Claim (Index 3):
The method for producing an aqueous dispersion of hollow polymer particles according to  claim 1 , wherein the first shell layer formation step comprises:\n an inner shell layer formation step of forming an inner shell layer (B1) which substantially covers the core polymer particles (A) by copolymerizing a monomer mixture (b1) in the presence of the core polymer particles (A); a middle shell layer formation step of forming a middle shell layer (B2) which substantially covers the inner shell layer (B1) by copolymerizing a monomer mixture (b2) in the presence of the core polymer particles (A) on which the inner shell layer (B1) is formed; and an outer shell layer formation step of forming an outer shell layer (B3) which substantially covers the middle shell layer (B2) by copolymerizing a monomer mixture (b3) in the presence of the core polymer particles (A) on which the inner shell layer (B1) and the middle shell layer (B2) are formed.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 2.69492
- Patent Class: 524.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14775276', '14965518', '14067380', '15504375', '15504373']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8375097256813656
- 35 USC 102 Novelty (BERT): 0.4882552102712184
- Combined Prediction Score: 0.8025842741403508
- Mean Citation Score: 249.705438
- Max Citation Score: 281.7213
- Similarity Product: 252.09797387323377

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test