PATENT CLAIM ANALYSIS

Application Number: 15879167
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["428", "035700"]

Abstract:
A composite includes a multilayer polyethylene terephthalate (PET) film having a base layer and an adjacent skin layer. The PET of the skin layer has inherent viscosity of about 0.70-0.90 and carboxyl endgroup concentration of less than 25 eq/T. The base layer can be affixed to a thin metal sheet. Optionally, the base layer of a second multilayer PET film with a skin layer inherent viscosity of about 0.70-0.90 and carboxyl endgroup concentration of less than 25 eq/T can be affixed to the opposite side of the metal sheet. The composite is suited for making food and chemical containers such as food storage cans that resist blush discoloration from steam contact during container formation and age degradation during extended storage of harsh chemical products.

Claim (Index 1):
A container comprising a wall of a layered composite, comprising:\n (a) a first multilayer film about 5 \u03bcm to 75 \u03bcm thick, and (b) a metal sheet about 50 \u03bcm to about 1300 \u03bcm thick, in which the first multilayer film comprises a base layer and a skin layer coextensively adjacent and in direct contact with a side of the base layer, in which the base layer comprises an adhesion layer about 0.1 to about 5 \u03bcm thick and a core layer, in which the adhesion layer is on a side of the base layer opposite the skin layer and consists essentially of a blend of about 2-19 wt % amorphous polyester copolymer and a complementary amount to total 100 wt % of PET, wherein the amorphous polyester copolymer is selected from the group consisting of isophthalic acid modified polyethylene therephthalate (PET) and cyclohexanedimethanol modified polyethytlene terephthalate (PETG), in which at least 70 wt % of the base layer and the skin layer each independently consists of polyethylene terephthalate (PET), the PET of the skin layer having intrinsic viscosity in the range of about 0.70 to about 0.90 and carboxyl end group concentration less than about 25 eq/T, and in which the first multilayer film is affixed to a first side of the metal sheet positioned such that a side of the base layer opposite the skin layer of the first multi layer film is in direct contact with the first side of the metal sheet.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 1.80822
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14555542', '14586785', '13930395', '15050348', '10594533']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8968418017417301
- 35 USC 102 Novelty (BERT): 0.5575536718356786
- Combined Prediction Score: 0.862912988751125
- Mean Citation Score: 234.19612
- Max Citation Score: 448.63303
- Similarity Product: 348.29984566639536

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

Dataset: test