Patent FR-2901801-A1 (FR)
Title: Bituminous product, useful for sealing applications, building and maintaining e.g. road surface, sidewalk, runways and bicycle path, comprises natural bitumen and additive e.g. ethylene oxide-propylene oxide statistical-/block copolymer
Inventor: BARRETO GILLES
IPC: E01C9/00
Filed: 2006-06-06
Abstract: Bituminous product comprises natural bitumen and at least an additive like: ethylene oxide-propylene oxide statistical-/block copolymer (I) at 0.1-9 kg, preferably 6 kg; a mixture (II) of a product-A at 0.05-9 kg, preferably 6 kg and product-A1 at 0.05-10 kg; and a product-A at 0.05-9 kg, preferably 6 kg or a mixture of product-A1 at 0.05-10 kg or product B 1 at 0.05-10 kg and product-A2 at 0.05-10 kg, where the additive is doped with an adhesive of 0.05-10 kg at a weight ratio of each product to the adhesive is 90:10-10-90, preferably 90:10-40-60. Bituminous product comprises: natural bitumen; ethylene oxide-propylene oxide statistical-/block copolymer (I) at 0.1-9 kg, preferably 6 kg; a mixture (II) of a product-A at 0.05-9, preferably 6 kg and product-A1 at 0.05-10 kg of formula (R-O-(CH 2CH(CH 3)O) a1-(CH 2CH 2O) b1) c1P(=O)-OH d1 at a ratio of 90:10-10:90; a product-A at 0.05-9 kg, preferably 6 kg or a mixture of product-A1 at 0.05-10 kg or product B 1 at 0.05-10 kg and product-A2 at 0.05-10 kg; a mixture of product-A at 0.05-9 kg or product-B-1 at 0.1-10 kg or product C 1 at 0.1-10 kg (all with an adhesive dope 0.05-10 kg) at a weight of the each product to the adhesive is 90:10-10-90, preferably 90:10-40-60. (I) has a molecular weight of 500-20000 g/mol. The weight percentage ratio of ethylene oxide to the sum of ethylene oxide and propylene oxide is 1-70. The statistical copolymer is of formula HO-(CH 2CH 2O)-(CH 2CH(CH 3)O) b-H and/or the block copolymer is of formula HO (CH 2CH 2O) c-(CH 2CH(CH3)O) d-(CH 2CH 2O) e-H or HO-(CH 2CH 2O) (c+e)-(CH 2CH(CH 3)O) d-OH. The product-A2 is: a product of molecular weight of 45-20000 g/mol obtained by reacting (di)alk(en)ylphenol and 1-10, preferably 1-5 carbon aldehyde, followed by (poly)oxyethylation and/or (poly)oxypropylation of 1-50, preferably 2-20 carbon alk(en)yl group; partly (poly)ethoxylated and/or (poly)oxypropoxylated 2,2-bis(4-hydroxyphenyl)propane-epichlorohydrine of molecular weight of 45-20000 g/mol; partly (poly)ethoxylated and/or (poly)oxypropoxylated bis-(4-hydroxyphenyl)-ethane epichlorohydrine copolymer of molecular weight of 45-20000 g/mol; partly (poly)ethoxylated and/or (poly)oxypropoxylated bis-(4-hydroxyphenyl)-methane epichlorohydrine copolymer of molecular weight of 45-20000 g/mol; (poly)ethoxylated and/or (poly)oxypropoxylated 1-20, preferably 1-10 carbon alkyldicarboxylic acids of molecular weight of 100-20000 g/mol; partly (poly)ethoxylated and/or (poly)oxypropoxylated 10-30 carbon fatty acids of molecular weight of 100-20000 g/mol, preferably fatty acid of tall oil; 6-30 carbon alk(en)yl(aryl) sulfonic acid salt or 6-30 carbon alk(en)yl(aryl)amine salt, preferably dodecylbenzenesulfonic acid salt, amino tallow or cyclohexylamine; and/or a salt of 6-30 carbon alk(en)yl(aryl) sulfonic acid, morpholine, pyrazine, pyrazolin, pyrazolone, pyridine, pyridone, pyrimidine, pyrrole, pyrrolidine, pyyrolidone, pyrroline, toluidine, imidazole, indole, indoline or oxindole, preferably dodecylbenzenesulfonic acid salt or morpholine salt. The product-A has 3-50 phenol units. Independent claims are included for: (1) a process of preparing the bituminous product comprising contacting the additive with the bituminous product at 100-250[deg]C; (2) a process of preparing coating comprising mixing the bituminous product with granule where the temperatures of granular fractions is different, and forming a coating at 60-200[deg]C, preferably 100-200[deg]C; (3) an aqueous bituminous emulsion comprising bituminous products and a cationic emulsifier; and (4) a process of preparing a bituminous emulsion comprising contacting the bituminous product with the additives at 100-200[deg]C, preferably 120-180[deg]C before the emulsification of the mixture. P : phosphorus; c1 : 1-2; a1 : 0-10; b1 : 0-6; R : 6-30C hydrocarbon; and a-e, d1 : not defined. Provided that the sum of c and d is equal to 3.