Binder of vegetable nature for the production of materials for building and/or civil engineering
First Claim
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1. A material for the production of building layers and/or coatings comprising a mixture of an aggregate and a binder,wherein the binder comprises, based on the total weight of (a) and (b):
- (a) 60 to 80% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured according to the standard EN 1427 of 100 to 200°
C.;
(b) 20 to 40% in weight of at least one oil of vegetable origin having a viscosity at 25°
C. of 50 mPa·
s to 1000 Pa·
s;
(c) said binder having a penetrability at 25°
C., measured according to the standard NF EN 1426, of 20 to 300 1/10 mm and a softening point of 30 to 75°
C., measured according to the standard NF EN 1427; and
said binder being exempt of any natural or synthetic elastomer and of any thermoplastic polymer, said aggregates being selected from the group consisting of fines, sand, gravel and combinations thereof.
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Accused Products
Abstract
A binder for the production of a layer for road works or civil engineering comprises, with respect to the total weight of the binder:
- (a) 2 to 98% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured of 30 to 200° C.;
- (b) 98 to 2% in weight of at least one oil of vegetable origin having a viscosity at 25° C. of 50 mPa·s to 1000 Pa·s,
- (c) the binder having:
- (c1) either a penetrability at 25° C., of 20 to 300 1/10 mm and a softening point of 30 to 75° C.,
- (c2) or a penetrability at 15° C., of 300 to 900 and a viscosity at 60° C., and
- (d) the binder being exempt of any natural or synthetic elastomer and of any thermoplastic polymer.
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Citations
16 Claims
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1. A material for the production of building layers and/or coatings comprising a mixture of an aggregate and a binder,
wherein the binder comprises, based on the total weight of (a) and (b): -
(a) 60 to 80% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured according to the standard EN 1427 of 100 to 200°
C.;(b) 20 to 40% in weight of at least one oil of vegetable origin having a viscosity at 25°
C. of 50 mPa·
s to 1000 Pa·
s;(c) said binder having a penetrability at 25°
C., measured according to the standard NF EN 1426, of 20 to 300 1/10 mm and a softening point of 30 to 75°
C., measured according to the standard NF EN 1427; andsaid binder being exempt of any natural or synthetic elastomer and of any thermoplastic polymer, said aggregates being selected from the group consisting of fines, sand, gravel and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification