EP0315239A1
Expired / Lapsed
EP
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Bituminous composition and its use in the water-proofing sector
Assignee: Enichem Anic SpA
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Filing: 1988-10-18
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Granted: —
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Expires: 2008-10-18
Abstract
Abstract A water-proofing bituminous composition contains bitumen and a polymer of ethylene with at least one further alpha-olefin comonomer containing from 3 to 18 carbon atoms in its molecule, having a linear or branched chain. Water-proofing sheaths are disclosed, which contain the bituminous composition in association with a reinforcement, in particular a non-woven fabric or fiberglass web.
Inventors
- 👤 Carmelo Iacono
- 👤 Salvatore Tribastone
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 00:29
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; C; C08; C08L; C08L95/00; D; D06; D06N; D06N5/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
Water-proofing bituminous composition characterized in that it contains: a) bitumen; and b) a polymer of ethylene with at least one comonomer selected from amongst the alpha-olefins containing from 3 to 18 carbon atoms in their molecule, with either linear or branched chain, with said polymer having a melt-flow index value comprised within the range of from 8 to 120 g/10 minutes, and a density value comprised within the range of from 0.880 to 0.920 g/ml.
Claim 2
Dependent Claim
75 words
Water-proofing bituminous composition characterized in that it contains: a) bitumen; and b) a polymer of ethylene with at least one comonomer selected from amongst the alpha-olefins containing from 3 to 18 carbon atoms in their molecule, with either linear or branched chain, with said polymer having a melt-flow index value comprised within the range of from 8 to 120 g/10 minutes, and a density value comprised within the range of from 0.880 to 0.920 g/ml.
Claim 3
Dependent Claim
45 words
Compositicn according to claim 1, characterized in that said ethylene polymer is an ethylene-propylene copolymer having a melt-flow index value comprised within the range of from 20 to 60 g/10 minutes, and a density value comprised within the range of from 0.890 to 0.910 g/ml.
Claim 4
Dependent Claim
30 words
Composition according to claims 1 or 2, characterized in that it contains from 1 to 30 parts by weight of ethylene polymer per each 100 parts by weight of bitumen.
Claim 5
Dependent Claim
34 words
Composition according to claim 3, characterized in that said content of ethylene polymer is comprised within the range of fro 20 to 25 parts by weight per each 100 parts by weight of bitumen.
Claim 6
Dependent Claim
23 words
Composition according to claims from 1 to 4, characterized in that it additionally contains one or more from: fillers, pigments, dyes and stabilizers.
Claim 7
Dependent Claim
32 words
Water-proofing sheath, characterized in that it contains the composition according to claims from 1 to 5 in association with a support selected from felts, fabrics and laminates of organic and/or inorganic materials.
Claim 8
Dependent Claim
20 words
Water-proofing sheath according to claim 6, characterized in that said support is a non-woven polyester fabric, or a fibreglass web.
Claim 9
Dependent Claim
24 words
Water-proofing sheath according to claims 6 or 7, characterized in that it bears a surface metal coating, or a surface layer of inorganic grit.
Claim 10
Dependent Claim
26 words
9 . Use of the sheath according to claims from 6 to 8 for water-proofing coatings in the building industry, and in civil works in general.
References Cited (Backward Citations)
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