Method of preparing heating type paving material as well as composition for heating type paving material to be used for the method
AssigneeToho Chemical Industry Co., Ltd.
InventorsSeitaro Ando, Tadao Goto, Sadao Hagiwara, Haruyoshi Miyauchi
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Abstract
A composition which is a blend of a specified condensate obtained by reacting polyalkylenepolyamine with an fatty acid and a modified polyolefin resin having carboxyl groups at a specified proportion. In preparing the heating type paving material comprising various aggregates, bitumen as base and the composition, the composition is added to bitumen in an amount of 0.05-5.0 weight %. The heating type paving material obtained has superior in peel resistant effect between bitumen and aggregates.
Claims12
A method of preparing a heating type paving material containing various aggregates and bitumen as bases, characterized in that a composition which is a blend of (B) a condensate obtained by reacting 1 mole of polyalkylenepolyamine expressed by the following general formula (A)
- H2N[(CH2)mNH]n(CH2)mNH2 (A)
- wherein, m denotes an integer of 2 or 3, and n denotes an integer of 1-8, with from 1 mole to (n+1) moles of a saturated or unsaturated fatty acid having 8-22 carbon atoms and (C) a modified polyolefin resin having carboxyl groups with an acid value of 5-100 in a proportion of (B):(C)=95:5-5:95 (weight %) is added to bitumen in an amount of 0.05-5.0 weight %.
A composition for heating type paving material which is a blend of (B) a condensate obtained by reacting 1 mole of polyalkylenepolyamine expressed by the following general formula (A)
- H2N[(CH2)mNH]n(CH2)mNH2 (A)
- wherein, m denotes an integer of 2 or 3, and n denotes an integer of 1-8, with from 1 mole to (n+1) moles of a saturated or unsaturated fatty acid having 8-22 carbon atoms and (C) a modified polyolefin resin having carboxyl groups with an acid value of 5-100 in a proportion of (B):(C)=95:5-5:95 (weight %).
A heating type paving material comprising (i) various aggregates, (ii) bitumen as bases, and (iii) a composition which is a blend of (B) a condensate obtained by reacting 1 mole of polyalkylenepolyamine expressed by the following general formula (A)
- H2N[(CH2)mNH]n(CH2)mNH2 (A)
- wherein, m denotes an integer of 2 or 3, and n denotes an integer of 1-8, with from 1 mole to (n+1) moles of a saturated or unsaturated fatty acid having 8-22 carbon atoms and (C) a modified polyolefin resin having carboxyl groups with an acid value of 5-100 in a proportion of (B):(C)=95:5-5:95 (weight %), wherein, the composition is added to bitumen in an amount of 0.05-5.0 weight %.
Dependencies are inferred from the claim text.