Patent ID: 8207254

Claim:
A method for making coatings, marking products and/or sealing products from a starting material comprising aggregates, the method comprising: adding to the starting material a binder comprising at least one resin based on polymerized hydroxyacid derivatives as a non bituminous binder, the resin(s) being selected from: a) organic resins derived from an oil or a fat having a natural origin comprising monoglycerides and/or diglycerides, esterified with a poly(hydroxy acid) of following formula: wherein, R 1 is a saturated or unsaturated, aliphatic hydrocarbon chain having from 6 to 32 carbon atoms, optionally substituted with alkyl or hydroxyl groups, R 2 is a hydrogen atom, a —COR 4 group, where R 4 has the same definition as R 1 , or a poly(hydroxy acid) esterified group, the poly(hydroxy-acid) group corresponding to [hydroxyl-acid] n —CO—X—OH is a linear or a branched chain, obtained by condensating hydroxy acid monomers that are the same or different, X is —CH 2 , or —CHR, where R is an alkyl group having from 1 to 5 carbon atom(s) and comprising from 0 to 5 hydroxyl function(s), n is the number of hydroxy acid units that are the same or different and ranges from 3 to 2000, and/or b) organic resins of lactic polyacid, polyol esters, glycerol, 1,2- and 1,3-propane diol, lactic polyacid and mono- or polyhydroxylated polyacid esters, malic acid, citric acid, tartaric acid or esters thereof, glycerol or citric acid esters, and/or c) organic resins of lactic polyacid, lactic polyacid derivatives and/or corresponding esters thereof, wherein said aggregates comprise fine aggregates having a grain size distribution in a range between 0-80 μm and coarser aggregates selected from the group consisting of sand, chipping and coarse aggregate.