PATENT CLAIM ANALYSIS

Application Number: 15966354
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["525", "411000"]

Abstract:
The composition comprises a mixture of: i) poly(L-, D-lactide) homopolymer and, optionally, poly(ε-caprolactone) homopolymer, and ii) poly(L-lactide) and poly(ε-caprolactone) diblock copolymer, where said copolymer has a molar mass of the L-lactide block of 20,000 g/mol to 200,000 g/mol and a molar mass of the ε-caprolactone block of 10,000 g/mol to 100,000 g/mol, with the molar ratio between the L-lactide block and the ε-caprolactone block of 2:1. The invention also refers to the nanostructured material obtained from this composition that is characterised by a nanostructure of two mutually self-assembled phases, one phase being formed by a polymeric matrix of poly(L-, D-lactide) units and the other phase by poly(ε-caprolactone) units self-assembled with the matrix and also its use for the manufacture of a plastic article in the form of a transparent film or thin sheet.

Claim (Index 23):
Process for obtaining a nanostructured biodegradable polymeric material\n with the composition of  claim 16 , wherein it comprises: a) obtaining a film or thin sheet of nanostructured biodegradable polymeric material by:\n a.1) the solution and evaporation method comprising\n a.1.a) preparing a solution of poly(L-, D-lactide) homopolymer (PLA) of from 0.5% to 10% by weight with a polar organic solvent at a temperature below the boiling point of the solvent used; \n a.1.b) preparing a solution of poly(L-lactide-b-\u03b5-caprolactone) diblock copolymer (CPB) of 0.5% to 10% by weight with a polar organic solvent at a temperature below the boiling point of the solvent used;\n a.1.c) mixing the solutions prepared in stages a.1.a) and a.1.b) keeping the temperature constant until homogenisation of the mixture components; and \n \n a.1.d) pouring the mixture obtained in stages a.1.c) on a flat surface and allowing the solvent to evaporate at ambient temperature until the formation of a film or thin sheet; or \n \n a.2) obtaining a binary mixture of poly(L-, D-lactide) homopolymer (PLA) and poly(L-lactide-b-\u03b5-caprolactone) diblock copolymer (CPB) in the form of pellets, followed by drying, mixing the components and compression of the mixture between two plates by the application of pressure cycles until obtaining a film or thin sheet; \n b) freezing the film or thin sheet obtained in stage a) with an inert gas; c) milling the film or thin sheet to obtain a powder with a particle size of between 50 \u03bcm and 150 \u03bcm; and d) placing the powder between two plates and moulding the mixture between two plates by applying cycles of pressure until obtaining a thin sheet of nanostructured biodegradable polymeric material with a thickness of between 175 and 225 \u03bcm.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 91.0
- Lexical Diversity: 2.10256
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14782094', '15922141', '14339749', '13090076', '15840461']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7037579288866025
- 35 USC 102 Novelty (BERT): 0.6779609310566562
- Combined Prediction Score: 0.7011782291036078
- Mean Citation Score: 402.26514
- Max Citation Score: 739.7688
- Similarity Product: 678.1176667370796

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