PATENT CLAIM ANALYSIS

Application Number: 15773087
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["501", "082000"]

Abstract:
A lightweight micro-closed-pore corundum composite refractory and a method preparing the same, wherein raw materials of the refractory comprise 95-99 parts by weight of α-Al 2 O 3  micro-powder and 1-5 parts by weight of dolomite clinker; and additives of the refractory comprise 2-15 parts by weight of nano alumina sol, 5-15 parts by weight of a carbohydrate polymer, and 30-50 parts by weight of an organic alcohol. and the lightweight micro-closed-pore corundum composite refractory is prepared by: mixing and wet grinding the raw materials and the additives to obtain a slurry; placing the slurry in a mold, keeping the mold at 15-25° C. for 6-12 hours and then keeping the mold at 60-90° C. for 6-12 hours, then demolding; drying a demolded green body at 110-200° C. for 24-36 hours, and keeping the green body at 1800-2000° C. for 2-5 hours. A method preparing a lightweight micro-closed-pore corundum composite refractory is also provided. The lightweight micro-closed-pore corundum composite refractory of the present invention has characteristics of low bulk density, small average pore size, high closed porosity, low thermal conductivity, strong thermal shock resistance, abrasion resistance and slag resistance.

Claim (Index 5):
The lightweight micro-closed-pore corundum composite refractory of  claim 1 , wherein the carbohydrate polymer is one or two or more mixtures of dextrin, starch and chitin.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 2.12245
- Patent Class: 501.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10483070', '13689879', '15083316', '15741512', '15103966']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7556373930544442
- 35 USC 102 Novelty (BERT): 0.506278143863328
- Combined Prediction Score: 0.7307014681353327
- Mean Citation Score: 169.091624
- Max Citation Score: 172.86021000000005
- Similarity Product: 87.0030081036401

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

Dataset: test