PATENT CLAIM ANALYSIS

Application Number: 15762227
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["560", "347000"]

Abstract:
The invention relates to a continuously operated method for producing isocyanates by reacting the corresponding amines with phosgene. When changing the target production capacity starting from a starting state with a specified production capacity and ending with an end state with a different production capacity, the current excess phosgene at the time of the transition period between the starting state and the end state, the change of the amine mass flow beginning during said time, is at least equal to and preferably greater than the excess phosgene during the production period when the production capacity is in the starting state prior to the beginning of the transition period; and the average excess phosgene during the transition period is greater than the excess phosgene during the production period when the production capacity is in the starting state prior to the beginning of the transition period.

Claim (Index 1):
A continuous process for preparing an isocyanate with a target production capacity of isocyanate, expressed as the mass flow rate, of m 1, target , with at least one change in the target production capacity m 1, target , comprising the reaction ofreacting the amine corresponding to the isocyanate with phosgene in a reaction space, in which\n the amine is fed to the reaction space with a mass flow rate m 2  and phosgene is fed to the reaction space with a mass flow rate m 3 , wherein (ii) m 2  and m 3  are always chosen such that phosgene is present in excess relative to the primary amino groups of the amine, wherein (iii) in the at least one change in the target production capacity m 1, target , which is conducted from a starting state m 1, target  (A)\u22600 with a corresponding amine mass flow rate m 2, target  (A) and a phosgene mass flow rate m 3, target  (A) selected with regard to (ii) to a final state m 1, target  (E) \u22600 with a corresponding amine mass flow rate m 2,target  (E) and a phosgene mass flow rate m 3,target  (E) selected with regard to (ii), the mass flow rates of amine m 2  and phosgene m 3  are altered during the transition period between the starting state and final state in such a way that\n (iii-1) the instantaneous phosgene excess at the point in time in the transition period at which the alteration of the mass flow rate m 2  from m 2,target  (A) to m 2,target  (E) is commenced is at least as high as the phosgene excess during the period of production with the production capacity m 1, target  (A) prior to commencement of the transition period, and that \n (iii-2) the average phosgene excess during the transition period is greater than the phosgene excess during the period of production with the production capacity m 1, target  (A) prior to commencement of the transition period.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 90.0
- Lexical Diversity: 2.5
- Patent Class: 560.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15127826', '15128179', '15762224', '15128813', '12678771']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7481480018888541
- 35 USC 102 Novelty (BERT): 0.552150976958043
- Combined Prediction Score: 0.728548299395773
- Mean Citation Score: 324.263928
- Max Citation Score: 340.99426
- Similarity Product: 240.1338182140851

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