PATENT CLAIM ANALYSIS

Application Number: 15559466
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["208", "200000"]

Abstract:
The present invention relates to a process for the preparation of a lubricant base stock from the thermal decomposition of plastic polymer. The present invention provides a process for preparing a lubricant base stock from the thermal decomposition of plastic polyolefin polymer, the method comprising the steps of: i) introducing plastic polyolefin polymer into a thermal reaction zone of a vacuum pyrolysis reactor; ii) heating the plastic polyolefin polymer at sub-atmospheric pressure, wherein the temperature in the thermal reaction zone of the reactor is from 500° C. to 750° C., to induce thermal decomposition of the plastic polyolefin polymer and to form a thermal decomposition product effluent which comprises a major portion by weight of a C 20  to C 60  wax fraction; iii) condensing a vapour component of the thermal decomposition product effluent from the vacuum pyrolysis reactor; and iv) subjecting the C 20  to C 60  wax fraction of the thermal decomposition product to catalytic hydroisomerization in a hydroisomerization reactor in the presence of hydrogen to form the lubricant base stock; wherein the plastic polyolefin polymer comprises polyethylene and polypropylene in a polyethylene to polypropylene weight ratio of from 60:40 to 90:10.

Claim (Index 61):
A process according to  claim 60 , wherein a lighter boiling point fraction separated from the C 20  to C 60  wax fraction in step iii-b) is used as a source of fuel for heating the pyrolysis reactor.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 98.0
- Lexical Diversity: 2.5679
- Patent Class: 208.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14487023', '15623689', '13764932', '14974906', '14459180']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.720435666215101
- 35 USC 102 Novelty (BERT): 0.5311522463495781
- Combined Prediction Score: 0.7015073242285487
- Mean Citation Score: 224.371752
- Max Citation Score: 255.02774
- Similarity Product: 144.78989583225487

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