PATENT CLAIM ANALYSIS

Application Number: 15755664
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-12
Patent Classification: ["428", "034800"]

Abstract:
A single- or multilayer film is disclosed, the film made on the basis of a blend of (co)polyamide and polyvinyl alcohol, soluble in at least one solvent A, comprising more than 50% water, at that said film comprising polyvinyl alcohol—PVAs, soluble in the same solvent A, and bonded polyvinyl alcohol—PVAB, which (i) is virtually insoluble in the same solvent A at temperatures from 18° C. to the initial boiling point at normal pressure, (ii) is soluble in at least one of the solvents, capable of dissolving (co)polyamide, (iii) gives the typical for PVA color reaction with iodine, and (iv) reacts with at least one primary amine, with formation of water-soluble PVA, wherein the CB/CS ratio, where CB is the film content for PVAB, that becomes water-soluble after its treatment with said primary amine, and Cs is the content of PVAs in the film, is not less than 0.05. When this condition is satisfied, there is noticeable improvement in the stability of the technological process of production, and in the mechanical strength of the film. The claimed film can be used, specifically, for sausage casings. 2 independent and 30 dependent claims, 6 tables.

Claim (Index 33):
A single- or multilayer film, made of raw polymeric materials, comprising as obligatory components at least one (co)polyamide and at least one polyvinyl alcohol, soluble in at least one solvent A, comprising more than 50% of water, wherein said film comprises polyvinyl alcohol, soluble in the same solvent A \u2014PVA S , and a bonded polyvinyl alcohol\u2014PVA B , which\n i. is actually insoluble in the same solvent A that can dissolve PVA S , at the range from 18\u00b0 C. to initial boiling point at normal atmospheric pressure, ii. is soluble in at least one solvent B, dissolving (co)polyamide, iii. gives a typical for PVA reaction of coloration with iodine and iv. can react with, at least, one primary amine, producing water soluble PVA; wherein ratio C B /C S  is at least 0.05, wherein C B  is a content in the film of PVA B , that becomes water soluble after its treatment with primary amine and C S  is a content of PVA S  in the film; wherein the film is produced by a process comprising one or more stages of preparation of raw polymeric materials, including thermal or thermal-oxidative treatment of PVA used as a raw polymeric material, and melt (co)extrusion of said film, wherein pelletized raw polymeric materials directly used for the film (co)extrusion comprise at least one of two components, including a. PVA B  present in the concentration ratio with PVA S  that is defined above, PVA B  being in a pelletized blend, comprising (co)polyamide and PVA, b. carbonyl-modified PVA CO  a product of a thermal and/or thermal-oxidative decomposition, whose 4% aqueous solution mixed with an excess of 2,4-dinitrophenylhydrazine has an optical density not less than 0.1 at the wavelength of 490 nm, PVA CO  being in at least one type of PVA-comprising pelletized raw material.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 88.0
- Lexical Diversity: 1.97458
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14364295', '10671489', '15309936', '10142160', '11210169']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8655981742121739
- 35 USC 102 Novelty (BERT): 0.4796046375822616
- Combined Prediction Score: 0.8269988205491827
- Mean Citation Score: 159.11213
- Max Citation Score: 174.73459
- Similarity Product: 129.81251649250746

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test