PATENT CLAIM ANALYSIS

Application Number: 16213349
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["525", "247000"]

Abstract:
A method for producing a propylene-based block copolymer produces a propylene-based copolymer that exhibits excellent stereoregularity, rigidity, and impact resistance in a convenient and efficient manner while achieving high polymerization activity. The method for producing a propylene-based block copolymer includes bringing a catalyst into contact with propylene, or propylene and an α-olefin, and bringing an electron donor compound into contact with the resulting product to produce a propylene-based block copolymer, the catalyst including a solid catalyst component that includes titanium, magnesium, a halogen, and an internal electron donor compound, a specific organoaluminum compound, and a specific external electron donor compound.

Claim (Index 4):
The method for producing a propylene-based block copolymer according to  claim 1 , wherein the external electron donor compound represented by the general formula (II) is an external electron donor compound represented by a general formula (IIa), or the external electron donor compound represented by the general formula (III) is an external electron donor compound represented by a general formula (IIIa),\n R 7 Si(OR 8 ) 3 \u2003\u2003(IIa) wherein R 7  is a hydrogen atom, a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, an allyl group, a linear or branched alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aromatic hydrocarbon group having 6 to 12 carbon atoms, a nitrogen atom-containing hydrocarbon group having 2 to 12 carbon atoms that is terminated by a carbon atom, or an amino group having 2 to 12 carbon atoms, and R 8  is a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, an allyl group, a linear or branched alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, or an aromatic hydrocarbon group having 6 to 12 carbon atoms, provided that the three R 8  are either identical to or different from each other,\n (R 9 R 10 N)Si(OR 11 ) 3 \u2003\u2003(IIIa) \n wherein R 9  and R 10  are a hydrogen atom, a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, an allyl group, a linear or branched alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aromatic hydrocarbon group having 6 to 12 carbon atoms, a nitrogen atom-containing hydrocarbon group having 2 to 12 carbon atoms that is terminated by a carbon atom, or an amino group having 2 to 12 carbon atoms, provided that R 9  and R 10  are either identical to or different from each other, and are optionally bonded to each other to form a ring, and R 11  is a linear alkyl group having 1 to 12 carbon atoms, a branched alkyl group having 3 to 12 carbon atoms, a vinyl group, an allyl group, a linear or branched alkenyl group having 3 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, or an aromatic hydrocarbon group having 6 to 12 carbon atoms, provided that the three R 11  are either identical to or different from each other.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 98.0
- Lexical Diversity: 1.96491
- Patent Class: 525.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15504482', '15109611', '14427204', '14131052', '14770974']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8299318098318136
- 35 USC 102 Novelty (BERT): 0.5516393859260635
- Combined Prediction Score: 0.8021025674412386
- Mean Citation Score: 388.883534
- Max Citation Score: 447.78867
- Similarity Product: 399.2749140372992

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