PATENT CLAIM ANALYSIS

Application Number: 16070691
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["549", "274000"]

Abstract:
A method of recovering lactide which includes throwing a polylactic acid and a depolymerization catalyst into an extruder ( 1 ) communicated with a vent chamber ( 3 ) maintained under a reduced pressure, melt-kneading the polylactic acid and the depolymerization catalyst together in the extruder ( 1 ), feeding the melt-kneaded product thereof into the vent chamber ( 3 ), depolymerizing the polylactic acid in the vent chamber ( 3 ), gasifying the formed lactide and recovering the gasified lactide from the vent chamber ( 3 ).

Claim (Index 6):
The method of recovering lactide according to  claim 1 , wherein the temperature in said extruder is so set that the temperature of a melt of the polylactic acid is not higher than 270\u00b0 C. at the discharge port of said extruder, and the interior of said vent chamber is so set that the pressure is not higher than 8 kPaA and the temperature is 250 to 330\u00b0 C.

Metadata:
- Claim Count in Document: 170.0
- Percentile: 95.0
- Lexical Diversity: 2.11364
- Patent Class: 549.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15779911', '14534151', '11579144', '13985770', '13144323']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7176743701661761
- 35 USC 102 Novelty (BERT): 0.5361131144763035
- Combined Prediction Score: 0.6995182445971888
- Mean Citation Score: 202.53337600000003
- Max Citation Score: 364.36072
- Similarity Product: 242.3191066866208

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