PATENT CLAIM ANALYSIS

Application Number: 16326219
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["521", "159000"]

Abstract:
A fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and a manufacturing method thereof. The railway sleeper is formed by bonding a plurality of fiber-reinforced rigid polyurethane foam composite boards with high fiber content by a binder, and the outer surface of the railway sleeper is provided with an anticorrosive paint film. The fiber-reinforced rigid polyurethane foam composite boards with high fiber content include a polyurethane resin as a matrix material and a fiber as a reinforcing material. The problem of insufficient impregnation of the polyurethane and the fiber is solved by using a plurality of technical means such as using a mixed polyether polyol having a low hydroxyl value and a low functionality, using a coupling agent, etc., thus a fiber-reinforced rigid polyurethane foam composite product having a density higher than 840 kg/m 3  and a fiber content greater than 60% is manufactured.

Claim (Index 14):
The fiber-reinforced rigid polyurethane foam composite railway sleeper with fiber content of  claim 11 , wherein, at least four fiber-reinforced rigid polyurethane foam composite boards with fiber content are provided,\n two boards of the at least four fiber-reinforced rigid polyurethane foam composite boards with fiber content are provided laterally at upper and lower ends of the other boards of the at least four fiber-reinforced rigid polyurethane foam composite boards with fiber content, and the other boards are vertically arranged side by side and vertically bonded by the binder, and the two boards are laterally bonded to the other boards by the binder.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 99.0
- Lexical Diversity: 2.13699
- Patent Class: 521.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15465966', '13642273', '12017925', '14118399', '14240161']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8032396915951515
- 35 USC 102 Novelty (BERT): 0.5107337059021623
- Combined Prediction Score: 0.7739890930258526
- Mean Citation Score: 198.34715
- Max Citation Score: 205.1099
- Similarity Product: 113.1554144556165

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

Dataset: test