PATENT CLAIM ANALYSIS

Application Number: 15888022
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["521", "159000"]

Abstract:
The present invention provides a method for preparing hydrophilic polymer foam. The method comprises a step of providing an isocyanate functionalized prepolymer (A) and a step of foaming and curing the prepolymer (A). The prepolymer (A) is prepared by reacting diisocyanate (A1) and polyether polyol (A2), wherein the diisocyanate (A1) is selected from any one and a combination of 1,4-butyl diisocyanate (BDI), lysine diisocyanate (LDI) and 1,5-pentyl diisocyanate (PDI); the polyether polyol (A2) is a copolymer of ethylene oxide (EO) and propylene oxide (PO) and/or butylene oxide (BO); the ethylene oxide has a weight percentage of about 50%-100% in the polyether polyol, and has an OH functionality degree of 3-6, a hydroxyl value of about 21 mg KOH/g-168 mg KOH/g and a number-average molecular weight of about 1000 g/mol to about 8000 g/mol; and NCO content in the prepolymer (A) is 1%-10%.

Claim (Index 6):
The method for preparing hydrophilic polyurethane foam according to  claim 1 , wherein the method further comprises a step of mixing a prepolymer (A) with modified polyfunctional isocyanate (C) before a step of foaming and curing, wherein the modified polyfunctional isocyanate (C) contains a polymer of the lysine triisocyanate (LTI) (B) and mono-functional polyoxyethylene (C2) with a number-average molecular weight of about 200 g/mol to about 2000 g/mol.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 2.13793
- Patent Class: 521.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15391555', '11667090', '13981303', '14418237', '14892859']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8367808942591723
- 35 USC 102 Novelty (BERT): 0.5118492250310824
- Combined Prediction Score: 0.8042877273363633
- Mean Citation Score: 302.871128
- Max Citation Score: 308.12646
- Similarity Product: 252.6990490998816

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

Dataset: test