PATENT CLAIM ANALYSIS

Application Number: 16353957
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["442", "123000"]

Abstract:
Processes for making high-performance polyethylene multi-filament yarn are disclosed which include the steps of a) making a solution of ultra-high molar mass polyethylene in a solvent; b) spinning of the solution through a spinplate containing at least 5 spinholes into an air-gap to form fluid filaments, while applying a draw ratio DR fluid ; c) cooling the fluid filaments to form solvent-containing gel filaments; d) removing at least partly the solvent from the filaments; and e) drawing the filaments in at least one step before, during and/or after said solvent removing, while applying a draw ratio DR solid  of at least 4, wherein in step b) each spinhole comprises a contraction zone of specific dimension and a downstream zone of diameter Dn and length Dn with Ln/Dn of from 0 to at most 25, to result in a draw ratio DR fluid =DR sp *DR ag  of at least 150, wherein DR sp  is the draw ratio in the spinholes and DR ag  is the draw ratio in the air-gap, with DR sp  being greater than 1 and DR ag  at least 1. High-performance polyethylene multifilament yarn, and semi-finished or end-use products containing said yarn, especially to ropes and ballistic-resistant composites, are also disclosed.

Claim (Index 1):
A ballistic-resistant sheet comprising:\n a first layer and a second layer each comprising high-performance polyethylene multifilament yarn; wherein the multifilament yarn comprises ultra-high molecular weight polyethylene having an intrinsic viscosity of from about 8 dl/g to about 40 dl/g as measured in decalin at 135\u00b0 C. and at least 5 filaments, and has a tensile strength of between 5.8\u00b7(n \u22120.065 ) GPa and 8\u00b7n \u22120.065 ) GPa, wherein n is the number of filaments in the yarn; and wherein the filaments of the multifilament yarn in the first layer and the second layer are spread unidirectionally within each of the layers; and wherein a direction of the filaments in the first layer is rotated with respect to a direction of the filaments in the second layer.

Metadata:
- Claim Count in Document: 80.0
- Percentile: 99.0
- Lexical Diversity: 2.15238
- Patent Class: 442.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15672190', '14635993', '16354021', '14012413', '11917902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8770634021449656
- 35 USC 102 Novelty (BERT): 0.6359339201261964
- Combined Prediction Score: 0.8529504539430887
- Mean Citation Score: 540.8972699999998
- Max Citation Score: 626.6071
- Similarity Product: 577.2198766770839

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