PATENT CLAIM ANALYSIS

Application Number: 15997744
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["526", "060000"]

Abstract:
Methods for determining the concentration of transition metal compounds in a solution containing more than one transition metal compound are described. Polymerization reactor systems providing real-time monitoring and control of the concentrations of the transition metal components of a multicomponent catalyst system are disclosed, as well as methods for operating such polymerization reactor systems.

Claim (Index 22):
A process for operating a polymerization reactor system, the process comprising:\n (I) contacting a catalyst system comprising a first transition metal compound, a second transition metal compound, an activator, and an optional co-catalyst, with an olefin monomer and an optional olefin comonomer in a reactor within the polymerization reactor system under polymerization reaction conditions to produce an olefin polymer; wherein the polymerization reactor system comprises a solution reactor, a gas-phase reactor, a slurry reactor, or a combination thereof; (II) determining a concentration of the first transition metal compound in a solution comprising the first transition metal compound and the second transition metal compound, the concentration determined via the steps of:\n (i) submitting a sample of the solution to a sample chamber; \n (ii) irradiating the sample in the chamber with a light beam at a wavelength in the UV-visible spectrum; and \n (iii) generating a sample absorbance profile of the sample, subtracting a reference absorbance profile of the second transition metal compound in a reference solution from the sample absorbance profile to result in a first transition metal compound absorbance profile, and correlating the first transition metal compound absorbance profile to a standard to determine the concentration of the first transition metal compound in the solution; and \n (III) adjusting a flow rate of the first transition metal compound into the reactor when the concentration of the first transition metal compound in the solution has reached a predetermined level.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 94.0
- Lexical Diversity: 1.39024
- Patent Class: 526.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15655929', '15939446', '15497249', '13625065', '12317045']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7658705105146373
- 35 USC 102 Novelty (BERT): 0.5661806999839505
- Combined Prediction Score: 0.7459015294615686
- Mean Citation Score: 325.383948
- Max Citation Score: 462.55057
- Similarity Product: 445.3779429362546

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

Dataset: test