PATENT CLAIM ANALYSIS

Application Number: 15771140
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-03
Patent Classification: ["525", "309000"]

Abstract:
The invention relates to aqueous coating compositions based on an aqueous polymer dispersion as binder, having high performance levels of resistance to stains and dirt without specialist functional monomers. Said aqueous polymer dispersion having an MFFT between 0 and 50° C. comprises polymer particles obtained by emulsion polymerization in at least two steps with at least two polymer phases P1 and P2, P1 representing from 75 to 90% by weight of P1+P2 having a Fox Tg1 from 0 to 40° C. and P2 having a Fox Tg2 from 0 to 40° C., said polymer P2 representing from 10 to 25% by weight of the sum of polymers P1 and P2 and having a calculated Hansch parameter <2.0 and at least one ethylenically unsaturated monomer bearing an acetoacetoxy and/or amine or ureido functional group, said acetoacetoxy and/or amine or ureido functional group being borne by the external surface of P2 phase.

Claim (Index 16):
An aqueous polymer dispersion, wherein said polymer dispersion has a minimum film-forming temperature (MFFT) according to ISO 2115 between 0 and 50\u00b0 C., and comprises polymer particles obtained by radical emulsion polymerization in at least two steps and said particles comprise at least two polymer phases P1 and P2, with the P1 polymer phase representing from 75% to 90% by weight of the total polymer P1+P2 and the P2 polymer phase representing from 10% to 25% by weight of the total polymer P1+P2, with P1 having a glass transition temperature Tg1 calculated according to Fox, ranging from 0 to 40\u00b0 C. and P2 having a glass transition temperature Tg2 calculated according to Fox, ranging from 0 to 4\u00b0 C. which may be identical or different to within \u00b12\u00b0 C. and with\n said P1 polymer comprising structural units derived from 4 monomers M1 to M4 as follows:\n at least one ethylenically unsaturated monomer M1 chosen from C 4  (meth)acrylic esters, and \n at least one ethylenically unsaturated monomer M2 chosen from vinyl aromatic monomers, and \n at least one ethylenically unsaturated monomer M3 bearing a carboxylic acid group, and \n at least one monomer M4 having a function of internal crosslinking agent of said P1 phase, preferably chosen from monomers bearing at least two ethylenic unsaturations that are copolymerizable with the ethylenic unsaturations of the monomers M1 to M3 or bearing an ethylenic unsaturation and a blocked silane functional group in alkoxysilane form, \n \n said P2 polymer comprising structural units derived from 4 monomers M5 to M8 as follows:\n at least one ethylenically unsaturated monomer M5 chosen from C 4  (meth)acrylic esters which may be identical to or different than M1, \n at least one ethylenically unsaturated monomer M6 chosen from vinyl aromatic monomers, which monomer M6 may be identical to or different than M2, and \n at least one ethylenically unsaturated monomer M7, the homopolymer of which has a Tg measured by DSC at 10\u00b0 C./min of between 80 and 120\u00b0 C. and a hydrophobicity value estimated by the logarithm of the partition coefficient between octanol and water (LogKow), Estimation Program interface Suite\u00ae KowWin of the US Environmental Protection Agency's Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC) according to EPIWEB 4.1, ranging from 1 to 1.5, said monomer M7, and \n at least one ethylenically unsaturated monomer M8 bearing an acetoacetoxy or amine or ureido functional group, said acetoacetoxy, amine or ureido functional group being borne by the external surface of the shell polymer phase P2, \n \n the P2 polymer phase thus obtained from M5, M6, M7 and M8 having a hydrophobicity characterized by the Hansch parameter rounded up to one decimal, of less than or equal to 2.0, calculated by adding the products of the mass fractions multiplied by the LogKow corresponding to each component monomer and with P2 being in the external layer of said polymer particle.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 91.0
- Lexical Diversity: 1.78652
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15035843', '15035852', '13951811', '15523800', '14652490']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.734208416033141
- 35 USC 102 Novelty (BERT): 0.5128229469835833
- Combined Prediction Score: 0.7120698691281853
- Mean Citation Score: 258.45913
- Max Citation Score: 331.0523
- Similarity Product: 238.5187201346993

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