Oligoesters compositions and methods of making and using same
View Patent ↗An Oligoester composition obtained from a reactant mixture comprising one or more rosin; one or more polyhydric alcohol selected from the group of polyhydric alcohols having from 2 to 30 carbon atoms, and from 0.5 wt. % to 15 wt. %, based on the weight of all reactants, of one or more polyfunctional carboxylic acids selected from cycloaliphatic dicarboxylic polyfunctional carboxylic acids, and wherein the one or more polyhydric alcohol is present in the mixture for preparation of the Oligoester an amount of from 5 wt. % to 35 wt. %, based on the weight of all reactants. Oligoester composition has a hydroxyl value of from 7 mg KOH/g to 40 mg KOH/g and suitable for use in road marking, adhesives or tire tread.
1. An oligoester composition obtained from a reactant mixture comprising:
one or more rosin selected from the group consisting of tall oil rosin and gum rosin;
one or more polyhydric alcohol selected from the group of polyhydric alcohols having from 2 to 30 carbon atoms, at least 2 alcohol groups, and an average number of hydroxyl functionalities of from 2 to 10; and
from 0.5 wt. % to 15 wt. %, based on the weight of all reactants, of one or more-cycloaliphatic dicarboxylic acids having 5 to 19 carbon atoms, wherein in the cycloaliphatic dicarboxylic acid molecular formula, the number of hydrogen atoms is higher than the number of carbon atoms;
wherein the one or more polyhydric alcohol is present in the mixture for preparation of the oligoester composition in an amount of from 5 wt. % to 35 wt. %, based on the weight of all reactants; and
wherein the oligoester composition has a hydroxyl value of from 7 mg KOH/g to 40 mg KOH/g.
2. The oligoester composition of claim 1 , wherein the ratio of the average number of carbon atoms to the average number of rotatable bonds in the cycloaliphatic dicarboxylic acid having 5 to 19 carbon atoms is higher than 1.5.
3. The oligoester composition of claim 2 , wherein the ratio of the average number of carbon atoms to the average number of rotatable bonds in the cycloaliphatic dicarboxylic acid having 5 to 19 carbon atoms is higher than 3.
4. The oligoester composition of claim 1 , wherein the one or more cycloaliphatic dicarboxylic acids having 5 to 19 carbon atoms is present in a mixture for preparation of the oligoester composition in an amount of from 2 wt. % to 7 wt. %, based on the weight of all reactants.
5. The oligoester composition of claim 1 , wherein the cycloaliphatic dicarboxylic acid having 5 to 19 carbon atoms is derived from a cyclopropane, cyclobutane, cyclopentane, cyclopentene, cyclohexane, cyclohexene, cycloheptane, cycloheptene, cyclooctane, cyclooctene, norbornene or norbornane parent ring system.
6. The oligoester composition of claim 5 , wherein the cycloaliphatic dicarboxylic acid having 5 to 19 carbon atoms is selected from camphoric acid, cis-norbornene-endo-2,3-carboxylic acid, cis-norbornane-endo-2,3-carboxylic acid, 1,2-cyclohexanedicarboxylic acid, 1,3-cyclohexanedicarboxylic acid or 1,4-cyclohexanedicarboxylic acid.
7. The oligoester composition of claim 1 having a viscosity at 150° C. of from 1,200 mPa·s to-10,000 mPa·s.
8. The oligoester composition of claim 1 having a viscosity at 200° C. of from 90 mPa·s to 1,000 mPa·s.
9. The oligoester composition of claim 1 having a number average molecular weight (Mn) of from 800 g/mol to 1,500 g/mol.
10. The oligoester composition of claim 1 , wherein the polyhydric alcohol is selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, neopentylglycol, trimethylene glycol, glycerol, trimethylolpropane, trimethylolethane, pentaerythritol, pentaerythritol, dipentaerythritol, tripentaerythritol, 1,4-cyclohexanediol, polyglycerol, polyglycerol, polyglycerol-3, polyglycerol-4, cyclohexane-1,4-dimethanol, tricyclo[5.2.1.0(2.6)]decane-4,8-dimethanol, hydrogenated bisphenol A (4,4′-isopropylidenedicyclohexanol), mannitol, sorbitol, xylitol, maltitol, lactitol, and combinations thereof.
11. A composition comprising: 1-60% by weight of the oligoester composition of claim 1 , and 1-60% by weight of a polymer or polymer blend, based on the total weight of the composition.
12. A thermoplastic road marking composition comprising the oligoester composition of claim 1 , and up to 20% by weight, based on the total weight of the thermoplastic road marking composition, of a polymer, wherein
the oligoester composition is present in an amount of 5% by weight to 30% by weight, based on the total weight of the thermoplastic road marking composition.
13. An adhesive composition comprising:
5-60% by weight of the oligoester composition of claim 1 , and 10-60% by weight of a polymer, based on the total weight of the adhesive composition.
14. A tire tread composition comprising:
a) the oligoester composition of claim 1 ;
b) a rubber polymer; and
c) a filler;
wherein the oligoester composition is present in an amount from 5-70 parts by weight, per 100 parts by weight of the rubber polymer.
15. A tire tread composition comprising:
a) a copolymer derived from styrene and one or more monomers selected from the group consisting of isoprene and butadiene;
b) 5 to 70 parts by weight, based on 100 parts by weight of the copolymer, of the oligoester composition of claim 1 ; and
c) a filler.