PATENT CLAIM ANALYSIS

Application Number: 15773748
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-02
Patent Classification: ["526", "119000"]

Abstract:
The present disclosure relates to a supported hybrid metallocene catalyst and a method for preparing a polyolefin using the same. When the supported hybrid metallocene catalyst according to the present disclosure is used, a polyolefin with a multimodal molecular weight distribution and excellent environmental stress crack resistance can be prepared.

Claim (Index 1):
A supported hybrid metallocene catalyst, comprising: a first metallocene compound represented by the following Chemical Formula 1;\n a second metallocene compound which is represented by the following Chemical Formula 2 and one of C 1  and C 2  of Chemical Formula 2 is represented by the following Chemical Formula 3a; a third metallocene compound which is represented by the following Chemical Formula 2 and one of C 1  and C 2  of Chemical Formula 2 is represented by the following Chemical Formula 3b; a cocatalyst; and a support: in Chemical Formula 1, at least one of R 1  to R 8  is \u2014(CH 2 ) n \u2014OR (wherein R is a C1 to C6 linear or branched alkyl group, and n is an integer of 2 to 10), and the others are the same as or different from each other, and are each independently hydrogen, a C1 to C20 alkyl group, a C2 to C20 alkenyl group, a C6 to C20 aryl group, a C7 to C20 alkylaryl group, or a C7 to C20 arylalkyl group, M 1  is a Group 4 transition metal, and X 1  and X 2  are the same as or different from each other, and are each independently a halogen or a C1 to C20 alkyl group, in Chemical Formula 2, M 2  is a Group 4 transition metal, X 3  and X 4  are the same as or different from each other, and are each independently a halogen or a C1 to C20 alkyl group, B is carbon, silicon, or germanium, at least one of Q 1  and Q 2  is \u2014(CH 2 ) m \u2014OR\u2032 (wherein R\u2032 is a C1 to C6 linear or branched alkyl group, and m is an integer of 2 to 10), and the others are the same as or different from each other, and are each independently hydrogen, a halogen, a C1 to C20 alkyl group, a C2 to C20 alkenyl group, a C6 to C20 aryl group, a C7 to C20 alkylaryl group, or a C7 to C20 arylalkyl group, and one of C 1  and C 2  is represented by the following Chemical Formula 3a or 3b, and the other is represented by the following Chemical Formula 3c, in Chemical Formulae 3a to 3c, R 9  to R 27  are the same as or different from each other, and are each independently hydrogen, a C1 to C20 alkyl group, a C2 to C20 alkenyl group, a C1 to C20 alkoxy group, a C1 to C20 alkylsilyl group, a C1 to C20 silylalkyl group, a C6 to C20 aryl group, a C7 to C20 alkylaryl group, or a C7 to C20 arylalkyl group.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 93.0
- Lexical Diversity: 1.43243
- Patent Class: 526.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15566098', '15767920', '15021238', '15760073', '14353666']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7987972754765342
- 35 USC 102 Novelty (BERT): 0.5392725589704115
- Combined Prediction Score: 0.772844803825922
- Mean Citation Score: 408.64276
- Max Citation Score: 425.21945
- Similarity Product: 320.74414558745025

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

Dataset: test