PATENT CLAIM ANALYSIS

Application Number: 16026273
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["424", "445000"]

Abstract:
Functional spunlaid fabrics incorporating fibers made from non-meltable polymers containing permanently one or more functional additives are provided. The fibers are entangled and interlocked to form a firm nonwoven composite, have different lengths, and aspect ratios above 1,000. The fibers have a mean diameter of 0.1 to 500 micrometres and diameter variations within a single fiber and among each other of at least 30%. The fibers contain more than 40 wt % of finely distributed functional additives in solid and/or liquid form. The spunlaid fabric is produced from a spinning solution containing the non-meltable polymer dissolved in a direct solvent and at least one functional additive. The spinning solution is extruded out of a spinneret, and the resulting strands are drawn in the longitudinal direction to form fibers, stabilized and laid down to form a nonwoven fabric with permanent functional properties. Exemplary spunlaid fabrics include clothing, technical textiles and filters.

Claim (Index 13):
A process for producing a high-functionality spunlaid nonwoven as claimed in  claim 1 , comprising\n extruding a spinning solution comprising more than 40 wt % of one or more functional additives, solvent and dissolved polymer through a spinneret die, the die having holes with a diameter of 0.1 to 1.5 mm, to form polymeric strands; drawing the resulting polymeric strands into fibers, said drawing commencing immediately upon leaving the die, said drawing effected by an obliquely downwardly directed blowing stream the intensity of which is adapted to the reduced thread-drawing capacity of the spun mixture due to the functional additives, in addition to the air stream the strands are blown or sprayed on by a non-solvent starting at a distance between 5 to 20 mm, said drawing performed within a short path, in the longitudinal direction, subsequently stabilizing the drawn fibers upon transitioning into a tensionless space, even before the onset of longitudinal relaxation, said fibers stabilized in their shape via a stream of temperature-controlled air and fine droplets of a non-solvent by consolidation/gelation and partial replacement of the solvent with the non-solvent, wherein in spatial terms the stabilization can take place more or less offset to the die exit and gel-state fibers are obtained, forming a nonwoven by laying down the stabilized fiber on a foraminous belt or drum, rinsing out the remaining solvent by repeated washing and optionally drying the nonwoven.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 95.0
- Lexical Diversity: 1.71579
- Patent Class: 424.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13967111', '10887467', '12966483', '12966521', '13833456']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7371195686671342
- 35 USC 102 Novelty (BERT): 0.5098514347970607
- Combined Prediction Score: 0.7143927552801269
- Mean Citation Score: 211.87237400000004
- Max Citation Score: 251.35233
- Similarity Product: 154.32106253977776

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