Patent ID: 7390446

Claim:
A process for the preparation of foamed supramolecular polymers characterized in that the foaming of the supramolecular polymer is carried out in the presence of a blowing agent, wherein the supramolecular polymer has the following general formula: where PU is a polymer chain comprising at least one polyurethane chain; and n ranges from 0 to 8; X, Y and Z, identical or different are H-bonding sites, wherein X and Y are obtained by the reaction of a terminal isocyanate group with a compound selected from the group consisting of 2-aminopyrimidine, isocytosine, 6-alkylisocytosine, 2-aminopyridine, 5-amino-uracil 6-tridecylisocytosine, 6-phenyl-isocytosine, 2-amino-6-(3-butenyl)-4-pyrimidone, p-di-(2-amino-6-ethyl-4-pyrimidone) benzene, 2-amino 4-pyridone, 4-pyrimidone 6-methyl-2-amino-4-pyrimidone, 6-ethyl-2-amino-4-pyrimidone, 6-phenyl-2-amino-4-pyrimidone, 6-(p-nitrophenyl)isocytosine, 6-(trifluoromethyl) isocytosine and their mixtures.