US3785852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous emulsion-rubber latex compositions and method of depositing coagula therefrom
Assignee: Tremco LLC
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Filing: 1972-05-10
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Granted: 1974-01-15
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Expires: 1992-05-10
Abstract
Abstract Method of depositing a coagulum from a bituminous emulsionrubber latex composition by simultaneously spraying the composition and a coagulant under liquid pressure, along spray paths which converge so that the composition and coagulant mix thoroughly before contacting the surface being treated. The use of polyvinyl alcohol as a stabilizer for the bituminous emulsion is also disclosed.
Inventors
- 👤 G Schleidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/07; C; C08; C08L; C08L95/00; B; B05; B05B; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B7/0846; C08L7/00; C08L7/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
19 words
The method of claim 1 wherein said composition comprises from about 2 to about 35 wt% synthetic rubber latex.
Claim 2
Dependent Claim
13 words
The method of claim 2 wherein said synthetic rubber latex is a neoprene.
Claim 3
Dependent Claim
30 words
The method of claim 2 wherein said coagulant is an aqueous solution of a material selected from the group consisting of aluminum sulfate, hydrochloric acid, calcium chloride and sodium chloride.
Claim 4
Dependent Claim
11 words
The method of claim 3 wherein said coagulant is calcium chloride.
Claim 5
Dependent Claim
31 words
The method of claim 2 wherein said composition further comprises from about 1 to about 5 wt% of an aqueous solution, containing from about 0.05 to about 0.25 wt% polyvinyl alcohol.
Claim 6
Dependent Claim
143 words
In a method of depositing on a surface a coagulum from a composition comprising (1) a major proportion of a bituminous emulsion and (2) a minor proportion of a material selected from the group consisting of natural and synthetic rubber latices and mixtures thereof by simultaneously spraying said composition and a coagulant therefor, the improvement which comprises generating by liquid pressure, along a first path, an atomized stream of said composition; generating by liquid pressure along a second path, intersecting said first stream at a distance X from its point of generation, with an atomized stream of coagulant for said emulsion and said latex; directing said streams toward said surface; and maintaining the point of intersection of said paths a distance Y from said surface where Y is greater than X, whereby said composition and said coagulant mix thoroughly before contacting said surface.
Claim 7
Dependent Claim
11 words
A coagulum produced in accordance with the method of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |