PATENT CLAIM ANALYSIS

Application Number: 16130373
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["524", "783000"]

Abstract:
Methods of preparing high-density polyethylene (HDPE) nanocomposites by in situ polymerization with a zirconocene catalyst, a methylaluminoxane cocatalyst, a calcium zirconate nanofiller in a solvent. The calcium zirconate nanofiller, which is dispersed across the polyethylene matrix, is found to enhance catalyst activity, and other properties of the HDPE nanocomposites produced, including but not limited to flame retardency, crystallinity and surface morphology.

Claim (Index 1):
A method for forming a high-density polyethylene nanocomposite by polymerizing a mixture of ethylene and a calcium zirconate nanofiller, comprising:\n adding a zirconocene catalyst, the calcium zirconate nanofiller and a solvent to a reactor; mixing the zirconocene catalyst and the calcium zirconate nanofiller in the solvent; injecting ethylene into the reactor until absorption of ethylene is no longer observed; followed by adding a methylaluminoxane cocatalyst into the reactor to from a catalyst mixture; then polymerizing the ethylene by pressurizing the reactor with ethylene and maintaining a pressure of 1-1.5 bar to form a polymerization mixture; and then quenching the polymerization mixture with methanol to form the high-density polyethylene nanocomposite; wherein the calcium zirconate nanofiller is dispersed in a polyethylene matrix of the high-density polyethylene nanocomposite, and the polyethylene matrix has a melting temperature of 132.3 to 134.0\u00b0 C. determined by DSC, wherein the calcium zirconate nanofiller is not a support material for the zirconocene catalyst.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 97.0
- Lexical Diversity: 1.46939
- Patent Class: 524.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15607522', '15972506', '14796885', '16130412', '14796721']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8842187484082695
- 35 USC 102 Novelty (BERT): 0.6155348005518205
- Combined Prediction Score: 0.8573503536226246
- Mean Citation Score: 519.260372
- Max Citation Score: 569.2399
- Similarity Product: 560.9804802692772

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