PATENT CLAIM ANALYSIS

Application Number: 15763318
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["568", "618000"]

Abstract:
The present invention provides a method for directly preparing glycol dimethyl ether and co-producing ethylene glycol from ethylene glycol monomethyl ether. More specifically, the method comprises passing a feedstock containing a raw material of ethylene glycol monomethyl ether and a carrier gas through a reactor loaded with a solid acid catalyst to produce glycol dimethyl ether and ethylene glycol, at a reaction temperature range from 40° C. to 150° C. and a reaction pressure range from 0.1 MPa to 15.0 MPa; wherein a carrier gas is an optional inactive gas; and the feedstock contains water whose volume concentration in the feedstock is in a range from 0% to 95%; and the weight hourly space velocity of the raw material of ethylene glycol monomethyl ether is in a range from 0.05 h −1  to 5.0 h −1 ; and the volume concentration of the raw material of ethylene glycol monomethyl ether in the feedstock is in a range from 1% to 100%; and the volume concentration of the carrier gas in the feedstock is in a range from 0% to 99%. In the method of the present invention, using a solid acid as a catalyst and ethylene glycol monomethyl ether as a raw material, under a low temperature condition, glycol dimethyl ether and ethylene glycol are prepared directly with high selectivity; moreover, there is substantially or completely no production of by-product 1,4-dioxane that causes pollution to the environment and is harmful to the human body or animal bodies.

Claim (Index 9):
The method according to  claim 1 , wherein the inactive gas is one or more gases selected from the group consisting of nitrogen, helium and argon, and the volume concentration of the carrier gas in the feedstock is in a range from 1% to 99%.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 2.54286
- Patent Class: 568.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15763296', '15537928', '15105364', '15743698', '15315603']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7543508777817266
- 35 USC 102 Novelty (BERT): 0.5530229442832486
- Combined Prediction Score: 0.7342180844318789
- Mean Citation Score: 301.590274
- Max Citation Score: 418.41577
- Similarity Product: 270.5224014362526

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test