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 55):
A process according to  claim 53 , wherein at least one member of a group consisting of: the temperature in the thermal reaction zone of the reactor is from 525 to 650\u00b0 C., and the pressure in the thermal reaction zone of the vacuum pyrolysis reactor is less than 75 kPa absolute.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 98.0
- Lexical Diversity: 2.5679
- Patent Class: 208.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14487023', '15623689', '13764932', '14974906', '14459180']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7498422923602246
- 35 USC 102 Novelty (BERT): 0.5209589698807351
- Combined Prediction Score: 0.7269539601122756
- Mean Citation Score: 224.371752
- Max Citation Score: 255.02774
- Similarity Product: 165.49085284229756

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