Binder of vegetable origin, compositions comprising same and method for reducing the amount of petroleum-based bitumen

Abstract

Disclosed is a binder of vegetable origin based on modified tall-oil pitch, modified vegetable resin and optionally oil. Also disclosed are leakproofing membrane compositions, soundproofing membrane compositions, liquid sealing system compositions, asphalt mix coating compositions, asphalt coating compositions, primer compositions, varnish compositions, mastic compositions, adhesive compositions or binder emulsion compositions which comprise said binder. In addition, a method is disclosed for reducing the amount of bitumen of petroleum origin in said compositions.

Claims

1. A binder of vegetable origin comprising: 65% to 85% of a plasticizing fraction comprising a modified tall-oil pitch; 15% to 35% of a structuring fraction comprising a modified vegetable resin; the % being % by weight relative to the weight of the binder wherein the modified vegetable resin is a phenolic terpene resin or a fortified-rosin ester, the fortified-rosin ester being a modified vegetable resin obtained by esterification reaction of a polyol with a fortified rosin, the fortified rosin being a modified vegetable resin obtained by chemical reaction of Diels-Alder type of a rosin with a compound selected from acrylic acid, methacrylic acid, fumaric acid, itaconic acid, sorbic acid, maleic acid, or anhydride forms thereof, the polyol esterifying the fortified rosin being selected from pentaerythritol, 1,1,1-trimethylolpropane, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, glycerol, dipropylene glycol, tripropylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, neopentyl glycol, and mixtures thereof.

2. A binder according to claim 1, wherein the modified tall-oil pitch is obtained by esterification of tall-oil pitch with an alcohol, a polyol or a mixture thereof, or by thermal decarboxylation of tall-oil pitch.

3. A binder according to claim 1, wherein the modified tall-oil pitch has a residual acidity of less than 40 milligrams of KOH per gram of modified tall-oil pitch.

4. A binder according to claim 1, wherein the modified vegetable resin has a softening point above 120 C.

5. A binder according to claim 1, wherein the modified vegetable resin has a residual acidity of less than 80 milligrams of KOH per gram of modified vegetable resin.

6. A binder according to claim 1, wherein said binder has a ring-and-ball temperature of from 30 to 58 C.

7. A binder according to claim 1, wherein said binder has a needle penetrability at 25 C. of from 30 to 300 tenths of one mm.

8. A binder according to claim 1, wherein the plasticizing fraction further comprises an oil.

9. A leakproofing membrane composition comprising: the binder of vegetable origin according to claim 1; a polymer; a filler; optionally an additive.

10. A soundproofing membrane composition wherein it comprises: the binder of vegetable origin according to claim 1; a filler; optionally a polymer; optionally an additive.

11. A liquid sealing system composition comprising: the binder of vegetable origin according to claim 1; a solvent or polymerizable plasticizer; an additive; a prepolymer; optionally a filler.

12. An asphalt mix coating composition or asphalt coating composition comprising: the binder of vegetable origin according to claim 1; a polymer; a filler and/or aggregates; optionally an additive.

13. A primer, varnish, mastic or adhesive composition comprising: the binder of vegetable origin according to claim 1; solvent; an additive; optionally a polymer; optionally a filler.

14. A binder emulsion composition comprising: the binder of vegetable origin according to claim 1; a surfactant; a polymer; water; optionally an additive.

Description

EXAMPLES

(1) In the description and the examples below, the following methods were used.

(2) Ring-and-Ball Temperature (RBT) or Softening Point

(3) The RBT (or softening point) is measured according to standard NF EN 1427, June 2007. The test material is placed in copper rings. The rings are placed in an RBTmeter. A metal ball is placed at the surface of the rings which are heated until the ball passes through the ring. The temperature at which the ball passes through is the RBT.

(4) Needle Penetrability at 25 C. (Penetrability)

(5) The penetrability is measured according to standard NF EN 1426, December 1999. The test material is stored at 25 C. and the penetration into the sample, after a period of 5 seconds, of a needle with a diameter at the tip of 0.14 to 0.16 mm, the weight of which with its support is 100 g, is measured with a needle penetrometer. The penetrability is expressed in tenths of one millimeter.

(6) Cold Pliability or Flexibility

(7) The pliability is measured according to standard NF EN 1109, 1999. A test specimen having a thickness of 2 mm is formed with a film drawer. The susceptibility of the test specimen to cracking under the effect of folding at low temperatures is determined. The lowest temperature at which the test specimen can be folded around a mandrel of 30 mm in diameter is thus sought.

(8) Elastic Extension or Set

(9) This is the ability of a material to return to its initial size after having undergone an elongation followed by a relaxation. The set is the residual deformation after relaxation. A test specimen having a thickness of 2 mm is formed with a film drawer. Said test specimen is subjected to a given elongation over 24 h. The test specimen is then placed on a non-stick support for 24 h.

(10) For a mixture having undergone no aging step, the elongation is fixed at 200% for 24 h. For a mixture having undergone accelerated aging for 6 months at 70 C., the elongation is fixed at 25% for 24 h.

(11) Water Uptake

(12) The water uptake is measured in the following way. A test specimen having a thickness of 2 mm is formed with a film drawer. Said test specimen is immersed in water. The test specimen is removed from the water regularly, for example every 2 weeks, dried and weighed. The initial weight before immersion and the weight after immersion are compared. The difference in mass is attributed to a water uptake by the test specimen. The test specimen is placed in water again and this test is reproduced until the mass of the immersed test specimen stabilizes. This test is carried out at ambient temperature.

(13) In the examples below, the following commercial products and acronyms were used:

(14) Resinoline DP1202: tall-oil pitch triethylene glycol ester having a residual acidity corresponding to an acid number of 10 mg of KOH per gram of product and available from the company DRT.

(15) Resinoline DP1204: tall-oil pitch terpineol and diethylene glycol ester having a residual acidity corresponding to an acid number of 10 mg of KOH per gram of product and available from the company DRT.

(16) Dertophene DP1104: modified vegetable resin of phenolic terpene type, said resin having a softening point of 140 C., and a residual acidity corresponding to an acid number of less than 1 mg of KOH per gram of product, and being available from the company DRT.

(17) Granolite DP 1105: modified vegetable resin of fortified-rosin ester type comprising fortified rosin modified by esterification reaction with pentaerythritol, said resin having a softening point of 140 C., and a residual acidity corresponding to an acid number of 45 mg of KOH per gram of product, and being available from the company DRT.

(18) Radia 7396: saturated polyester oil sold by the company OLEON.

(19) Radia 7380: trimethylolpropane triisostearate-based saturated polyester oil sold by the company OLEON.

(20) Kraton 1186 or T161B: styrene-butadiene-styrene block copolymer respectively sold by the companies KRATON or VERSALIS.

(21) BL200: calcium carbonate having a particle size of between 8 and 200 micrometers.

Example 1

Binder of Vegetable Origin According to the Invention

(22) Modified pitch, modified vegetable resin and optionally oil are introduced into a mixer in the proportions indicated as percentage by weight relative to the weight of the binder in table 1 below. The mixture is heated at 170 C. for 30 minutes.

(23) TABLE-US-00001 TABLE 1 Modified vegetable Modified tall-oil pitch Oil resin (%) (%) (%) Binder 1 Resinoline DP1202 Dertophene DP1104 (75%) (25%) Binder 2 Resinoline DP1202 Granolite DP1105 (75%) (25%) Binder 3 Resinoline DP1202 Radia 7396 Dertophene DP1104 (50%) (25%) (25%) Binder 4 Resinoline DP1202 Radia 7396 Granolite DP1105 (50%) (25%) (25%) Binder 5 Resinoline DP1202 Radia 7380 Dertophene DP1104 (50%) (25%) (25%) Binder 6 Resinoline DP1204 Dertophene DP1104 (75%) (25%)

(24) Table 2 below gives the ring-and-ball temperature (RBT), the needle penetrability at 25 C. (penetrability) of binder 1 and of binder 2 according to the invention and of a bitumen of petroleum origin of grade 160-220.

(25) TABLE-US-00002 TABLE 2 Bitumen of petroleum origin of grade 160-220 Binder 1 Binder 2 (comparative) RBT 39 38 35-43 ( C.) Penetrability at 158 153 160-220 25 C. ( 1/10 mm)

(26) Binder 1 and binder 2 exhibit a behavior similar to a bitumen of petroleum origin having a grade between 70-100 and 160-220. Indeed, these three compositions have a similar RBT and a similar needle penetrability at 25 C. The viscosities of binder 1 and of binder 2 are satisfactory for the applications envisaged.

Example 2

Leakproofing Membrane Composition Comprising the Binder of Vegetable Origin According to the Invention

(27) A binder prepared in example 1, a polymer and a filler are introduced into a mixer in the proportions indicated as percentage by weight relative to the weight of the composition in table 3 below. The mixture is heated at 170 C. for 60 minutes.

(28) TABLE-US-00003 TABLE 3 Composition 1 Composition 2 Composition 3 Binder Binder 1 Binder 5 Binder 6 (%) (56%) (56%) (56%) Polymer Kraton 1186 Kraton 1186 T161B (%) (14%) (14%) (14%) Filler BL200 BL200 BL200 (%) (30%) (30%) (30%)

(29) Table 4 below gives the measurements of RBT, penetrability, pliability, set extension and water uptake of composition 1 and composition 3.

(30) TABLE-US-00004 TABLE 4 Composition 1 Composition 3 Specifications RBT 130 131 120 ( C.) Penetrability 25 C. 30 30 20-60 ( 1/10 mm) Pliability <35 <35 <20 ( C.) Set extension at 200% 7 7 <10 (%) Water uptake 35 days 1.75 Not measured <2% after immersion (%)

(31) According to table 5 below, these compositions also exhibit very good performance levels after aging (24 weeks at 70 C.) according to standard NF EN 1296.

(32) TABLE-US-00005 TABLE 5 Composition 1 Composition 3 after aging after aging Specifications RBT 120 119 100 ( C.) Pliability <15 <15 <5 ( C.) Set extension at 25% 7 7 <10 (%)

(33) It is understood that the examples and embodiments described herein are for illustrative purposes only. Unless clearly excluded by the context, all embodiments disclosed for one aspect of the invention can be combined with embodiments disclosed for other aspects of the invention, in any suitable combination. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.