US4076885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water proofing agent
Assignee: Holzstoff SA
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Filing: 1975-10-16
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Granted: 1978-02-28
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Expires: 1995-10-16
Abstract
Abstract A high quality water proofing material of easier applicability than those employed previously comprises a non woven fabric of isostatic polypropylene fibres treated with a mixture of bitumen and sulphur.
Inventors
- 👤 Maurice Brossel
- 👤 Gilbert Laurent
- 👤 Daniel Bertannier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:48
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/005; D04H3/007; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; D04H3/08; D04H3/12; D04H3/16; D06; D06N; D06N5/00; E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/042; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2305/00; B32B2305/10; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2419/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/20; Y10T442/2221
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
In a waterproofing agent comprising a combination of a non-woven fabric and a bituminous material the improvement which resides in employing as the non woven fabric material, material obtained from continuous filaments of isostatic polyproplyene and as the bituminous material a mixture of elemental sulphur and bitumen of sufficient fluidity at a temperature in the range 120° to 160° C to permit dispersion of sulphur therein.
Claim 2
Dependent Claim
66 words
In a waterproofing agent comprising a combination of a non-woven fabric and a bituminous material the improvement which resides in employing as the non woven fabric material, material obtained from continuous filaments of isostatic polyproplyene and as the bituminous material a mixture of elemental sulphur and bitumen of sufficient fluidity at a temperature in the range 120° to 160° C to permit dispersion of sulphur therein.
Claim 3
Dependent Claim
23 words
A waterproofing agent as claimed in claim 1 wherein the weight ratio of sulphur to bitumen is in the range 15.85 to 30:70.
Claim 4
Dependent Claim
25 words
A waterproofing agent as claimed in claim 1 wherein the weight ratio of non-woven fabric to bituminous material is in the range 1:0.5 to 1:60.
Claim 5
Dependent Claim
22 words
A waterproofing agent as claimed in claim 3, wherein the weight ratio of non woven fabric to bituminuous material is about 1:10.
Claim 6
Dependent Claim
19 words
A waterproofing agent as claimed in claim 1 wherein there is a plurality of layers of non woven fabric.
Claim 7
Dependent Claim
23 words
A waterproofing agent as claimed in claim 1 wherein the non-woven fabric has a weight lying between 10 and 1,000 g/m 2 .
Claim 8
Dependent Claim
20 words
A waterproofing agent as claimed in claim 1 wherein the filaments of polypropylene have a thickness 0.5 to 30 dtex.
Claim 9
Dependent Claim
41 words
A waterproofing agent as claimed in claim 1 wherein the fabric is also treated with an adhesive agent selected from the group consisting of an acetate of a secondary amine or a suspension of a quaternary amine in phenolated coal oil.
Claim 10
Dependent Claim
24 words
A waterproofing agent as claimed in claim 1 which also comprises an additive selected from the group comprising colorants, pigments, herbicidal compounds and fungicides.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |