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 19):
The fiber-reinforced rigid polyurethane foam composite railway sleeper with fiber content of  claim 2 , wherein, the binder is any one item selected from the group consisting of a vinyl resin binder, an epoxy resin binder, a polyurethane resin binder, an ortho-phenyl resin binder, a meta-phenyl resin binder and a phenol resin binder.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 99.0
- Lexical Diversity: 2.13699
- Patent Class: 521.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15465966', '13642273', '12017925', '14118399', '14240161']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8280134927611045
- 35 USC 102 Novelty (BERT): 0.4876066896435199
- Combined Prediction Score: 0.7939728124493461
- Mean Citation Score: 198.34715
- Max Citation Score: 205.1099
- Similarity Product: 145.25542795213462

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