PATENT CLAIM ANALYSIS

Application Number: 15753096
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["525", "221000"]

Abstract:
A preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby are provided. The preparation method of the superabsorbent polymer according to the present disclosure prevents polymer particles from being broken or the surface thereof from being damaged during preparation and handling of the superabsorbent polymer, thereby providing a superabsorbent polymer having excellent absorption properties and permeability.

Claim (Index 1):
A preparation method of a superabsorbent polymer, the method comprising:\n forming a water-containing gel polymer by performing thermal polymerization or photopolymerization of a monomer composition including water-soluble ethylene-based unsaturated monomers and a polymerization initiator; drying the water-containing gel polymer; pulverizing the dried polymer; surface-crosslinking the pulverized polymer; and treating the surface-crosslinked polymer with a polycarboxylic acid-based copolymer having repeating units represented by the following Chemical Formula 1-a and Chemical Formula 1-b: wherein, in Chemical Formula 1-a and 1-b, R 1 , R 2 , and R 3  are each independently hydrogen or an alkyl group having 1 to 6 carbon atoms, RO is an oxyalkylene group having 2 to 4 carbon atoms, M 1  is hydrogen or a monovalent metal or non-metal ion, X is \u2014COO\u2014, an alkyloxy group having 1 to 5 carbon atoms, or an alkyldioxy group having 1 to 5 carbon atoms, m is an integer of 1 to 100, n is an integer of 1 to 1000, and p is an integer of 1 to 150, and provided that there are two or more of p, two or more repeating (\u2014RO\u2014)s are the same as or different from each other.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 88.0
- Lexical Diversity: 1.7027
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15554852', '15556083', '15755340', '14440246', '15318761']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7371977564808229
- 35 USC 102 Novelty (BERT): 0.4691326132984595
- Combined Prediction Score: 0.7103912421625865
- Mean Citation Score: 234.301008
- Max Citation Score: 238.5715
- Similarity Product: 211.1068233668804

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