PATENT CLAIM ANALYSIS

Application Number: 15957186
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["428", "195100"]

Abstract:
The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.

Claim (Index 1):
A three-dimensionally printed fluoropolymer article, comprising a fluoropolymer composition, wherein the fluoropolymer in said fluoropolymer composition comprises either a homopolymer of vinylidene fluoride, or a copolymer comprising at least 65 weight percent of vinylidene fluoride monomer units, and 35 weight percent of one or more comonomers, and wherein said fluoropolymer has a low shear rate viscosity at 232\u00b0 C. and 4 sec of less than 13,000 Pa-s, and a high shear rate viscosity of 30 to 2000 Pa-s at 232\u00b0 C. and 100 sec \u2212J , as measured by capillary rheomometry at 232\u00b0 C.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 91.0
- Lexical Diversity: 1.78481
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15635525', '15549746', '15500707', '14808220', '14118981']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8908113101071196
- 35 USC 102 Novelty (BERT): 0.5697605123290218
- Combined Prediction Score: 0.8587062303293098
- Mean Citation Score: 257.412494
- Max Citation Score: 454.5414
- Similarity Product: 430.7018138103962

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