PATENT CLAIM ANALYSIS

Application Number: 15877094
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["526", "188000"]

Abstract:
This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes bridged hafnium metallocene compound, an unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

Claim (Index 1):
A supported catalyst system comprising: a bridged group 4 metallocene compound; an unbridged metallocene compound; a support material; and an activator; wherein the bridged group 4 metallocene compound is represented by the formula (A): where\n M* is a group 4 metal \n each R 1 , R 2 , and R 4  is independently hydrogen, alkoxide or a C 1  to C 40  substituted or unsubstituted hydrocarbyl group; \n R 3  is independently hydrogen, alkoxide or a C 1  to C 40  substituted or unsubstituted hydrocarbyl group (preferably a C 1  to C 20  substituted or unsubstituted hydrocarbyl group), or is \u2014R 20 \u2014SiR\u2032 3  or \u2014R 20 \u2014CR\u2032 3  where R 20  is hydrogen, or a C 1  to C 4  hydrocarbyl, and each R\u2032 is independently a C 1  to C 20  substituted or unsubstituted hydrocarbyl, provided that at least one R\u2032 is not H; \n each R 7 , R 8 , and R 10  is independently hydrogen, halide, alkoxide or a C 1  to C 40  substituted or unsubstituted hydrocarbyl group; \n R 9  is \u2014R 20 \u2014SiR\u2032 3  or \u2014R 20 \u2014CR\u2032 3  where R 20  is hydrogen or a C 1  to C 4  hydrocarbyl, and each R\u2032 is independently a C 1  to C 20  substituted or unsubstituted hydrocarbyl, provided that at least one R\u2032 is H; \n T is a bridging group; and \n each X is, independently, a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand, provided that the bridged metallocene is not symmetrically substituted; \n and the unbridged metallocene compound is represented by the formula (B):\n Cp m MX q \u2003\u2003(B), \n \n wherein each Cp is, independently, a cyclopentadienyl group (such as cyclopentadiene, indene or fluorene) which may be substituted or unsubstituted, M is zirconium or hafnium; X is a leaving group (such as a halide, a hydride, an alkyl group, an alkenyl group or an arylalkyl group), and m=2 or 3, q=0, 1, 2, or 3, and the sum of m+q is equal to the oxidation state of the transition metal, and each Cp and X is bound to M.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 1.41176
- Patent Class: 526.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15877143', '15564397', '15852553', '15564387', '10825380']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8321364700880245
- 35 USC 102 Novelty (BERT): 0.5267677643248394
- Combined Prediction Score: 0.801599599511706
- Mean Citation Score: 345.628266
- Max Citation Score: 393.09433
- Similarity Product: 310.95669062574865

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