PATENT CLAIM ANALYSIS

Application Number: 16041982
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-03
Patent Classification: ["252", "609000"]

Abstract:
The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates in a blend with a phosphate compound, said blend serving as highly efficient reactive flame retardant blend in flexible polyurethane foam. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the flame retardant blend with polyol and isocyanate foam forming components.

Claim (Index 1):
A flame retardant blend comprising:\n (1) a mono-hydroxyl-functional dialkyl phosphinate compound of the formula (I-A): wherein:\n R 1  and R 2  are selected from a linear or branched alkyl group containing from 1 to 4 carbon atoms; and, \n X is either \n and when X is \u2014(Z) k \u2014R 3 , wherein \u2014(Y\u2014O) n \u2014, is a linear or branched alkylene group containing from 2 to 8 carbon atoms and n represents an integer from 1 to 20; k may be 0 or 1; R 3  is selected from hydrogen, a mono-hydroxy-terminated linear or branched alkylene group containing from 2 to about 8 carbon atoms; and, provided that when k is zero, R 3  is the mono-hydroxy-terminated linear or branched alkylene group and when k is 1, R 3  is hydrogen, and when X is R 4  and R 5  are each independently selected from H, a linear or branched alkyl group containing from 1 to 8 carbon atoms, a linear or branched alkenyl group containing from 2 to 8 carbon atoms, a halo-substituted alkyl group containing from 1 to 8 carbon atoms, an alkoxy group containing from 1 to 8 carbon atoms, an aryl group containing from 6 to 12 carbon atoms and an alkylaryl group containing from 7 to 16 carbon atoms, or R 4  and R 5  are bonded to each other to form a cycloalkyl group containing from 5 to about 8 carbon atoms; and,\n (2) a phosphate compound.

Metadata:
- Claim Count in Document: 52.0
- Percentile: 95.0
- Lexical Diversity: 1.45238
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16041893', '11921095', '10429429', '14813217', '14989176']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8232815094966208
- 35 USC 102 Novelty (BERT): 0.5483011324662391
- Combined Prediction Score: 0.7957834717935827
- Mean Citation Score: 312.130444
- Max Citation Score: 427.95798
- Similarity Product: 356.26927082358964

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

Dataset: test