PATENT CLAIM ANALYSIS

Application Number: 15766434
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["524", "417000"]

Abstract:
The present invention relates to a polyimide film and a preparation method thereof. According to the present invention, a polyamic acid solution having a high weight-average molecular weight may be obtained by adjusting viscosity and solid content of the polyamic acid solution, and thus, a desired polyimide film may be prepared therefrom. Furthermore, since a length of carbon chains rearranged during graphitization is increased, a graphite sheet having excellent thermal conductivity can be prepared from the polyimide film of the present invention. Also, since the polyimide film has improved windability by further including inorganic particles as a filler, it may facilitate the wind operation.

Claim (Index 4):
The method of  claim 1 , wherein the imidization solution comprises a filler, and the filler comprises at least one inorganic particle selected from the group consisting of silicon, silicon dioxide, silicon nitride, aluminum, alumina, titanium, titanium oxide, phosphorus, calcium phosphate, calcium hydrogen phosphate (dicalcium phosphate), calcium, potassium, and a mixture thereof.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 91.0
- Lexical Diversity: 1.69118
- Patent Class: 524.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15360253', '13191027', '13259858', '15668964', '10343277']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8461477416645617
- 35 USC 102 Novelty (BERT): 0.4715223973117031
- Combined Prediction Score: 0.808685207229276
- Mean Citation Score: 195.226474
- Max Citation Score: 208.10262
- Similarity Product: 158.98862762707472

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