PATENT CLAIM ANALYSIS

Application Number: 15921089
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["514", "546000"]

Abstract:
The present invention relates to novel acid-free quaternized nitrogen compounds, to the preparation thereof and to the use thereof as a fuel and lubricant additive, more particularly as a detergent additive, as a wax antisettling additive (WASA) or as an additive for reducing internal diesel injector deposits (IDID); to additive packages which comprise these compounds; and to fuels and lubricants thus additized. The present invention further relates to the use of these acid-free quaternized nitrogen compounds as a fuel additive for reducing or preventing deposits in the injection systems of direct-injection diesel engines, especially in common-rail injection systems, for reducing the fuel consumption of direct-injection diesel engines, especially of diesel engines with common-rail injection systems, and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.

Claim (Index 13):
A process for preparing a quaternized nitrogen compound, comprising:\n a. reacting a compound comprising at least one oxygen- or nitrogen-containing group reactive with an anhydride and at least one quaternizable amino group with a polycarboxylic anhydride compound to obtain an amide compound having at least one quaternizable amino group, and b. quaternizing in the absence of a free acid the at least one quaternizable amino group of the amide compound by reaction with a hydrocarbyl epoxide of formula (II) to obtain the quaternized nitrogen compound: wherein the R a  radicals are each independently H or a hydrocarbyl radical having 1 to 10 carbon atoms; and wherein at least the quaternizing is performed in the presence of a protic solvent, and the quaternized nitrogen compound is selected from the group of compounds consisting of formulae Ia-1, Ia-2, Ia-3, Ib-1, Ib-2 and Ib-3: wherein R 1  is H or a straight-chain or branched hydrocarbyl radical which is optionally mono- or polysubstituted by hydroxyl, carboxyl, hydrocarbyloxy and/or acyl radicals, or has one or more ether groups in a hydrocarbyl chain; R 2  is H or alkyl; R 3  is hydrocarbyl, especially long-chain hydrocarbyl, for example a polyalkylene radical; at least one of the R 4 , R 5  and R 6  radicals is a radical introduced by quaternization, and remaining radicals are selected from straight-chain or branched, cyclic hydrocarbyl radicals which are optionally mono- or polysubstituted and/or have one or more heteroatoms; R 7  is H or a straight-chain or branched hydrocarbyl radical which is optionally mono- or polysubstituted by hydroxyl, carboxyl, hydrocarbyloxy and/or acyl radicals, or has one or more ether groups in the hydrocarbyl chain, or R 7  together with one of the R 4 , R 5  and R 6  radicals forms a bridge group; L 1  is a chemical bond or a straight-chain or branched alkylene group and L 2  is a straight-chain or branched alkylene group which optionally bears one or more heteroatoms or substituents.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 2.34921
- Patent Class: 514.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15423240', '15678974', '14436951', '14724404', '14337307']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7759213163066904
- 35 USC 102 Novelty (BERT): 0.5479376735863374
- Combined Prediction Score: 0.7531229520346551
- Mean Citation Score: 386.134282
- Max Citation Score: 390.03247000000016
- Similarity Product: 369.8933188892629

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

Dataset: test