US4229503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating uncured cementitious roofing tiles
Assignee: Monier Ltd
•
Filing: 1977-07-05
•
Granted: 1980-10-21
•
Expires: 1997-07-05
Abstract
Abstract An uncured cementitious substrate may be coated by a method which comprises applying to the substrate an aqueous emulsion of a film-forming polymeric material, wherein the emulsion contains at least one soluble soap.
Inventors
- 👤 Henry Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:11
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/4857; C04B41/52; C04B41/60; C04B41/61; C04B41/62; C04B41/63; C04B41/70; C09; C09D; C09D5/00; C09D5/02; C09D5/024; E; E04; E04F; E04F15/00; E04F15/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24372; Y10T428/24405; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
56 words
A method of coating an uncured cementitious roofing tile comprising applying to said tile an aqueous emulsion of a filmforming polymeric material; wherein said emulsion contains at least one soluble soap, in addition to an emulsifier, in an amount from about 0.2 to about 10 parts per hundred parts by weight of polymer in the emulsion.
Claim 2
Independent Claim
56 words
A method of coating an uncured cementitious roofing tile comprising applying to said tile an aqueous emulsion of a filmforming polymeric material; wherein said emulsion contains at least one soluble soap, in addition to an emulsifier, in an amount from about 0.2 to about 10 parts per hundred parts by weight of polymer in the emulsion.
Claim 3
Dependent Claim
88 words
A method according to claim 1, wherein said soap is present in an amount of from 0.2 to 10 parts per hundred parts by weight of polymer in the emulsion, and is selected from the group consisting of the lithium, sodium, potassium and ammonium soaps of acids from the group consisting of carboxylic acids of the general formula R--COOH where R is a saturated or unsaturated, branched or unbranched, alkyl chain, hydroxylated carboxylic acids containing from 4 to 20 carbon atoms, rosin acids, di-carboxylic acids and oxygenated acids.
Claim 4
Dependent Claim
25 words
A method according to claim 2 wherein said soap is selected from the group consisting of lithium, sodium, potassium and ammonium soaps of fatty acids.
Claim 5
Dependent Claim
56 words
A method according to claim 1, wherein said polymeric material is selected from the group consisting of acrylic polymers, vinyl ester homopolymers and co-polymers, co-polymers of styrene with acrylate and methacrylate esters, polyvinyl chloride, polyvinylidene chloride, co-polymers of vinyl chloride and vinylidene chloride, and co-polymers of vinyl chloride and vinylidene chloride with acrylate and methacrylate esters.
Claim 6
Dependent Claim
21 words
A method according to claim 4, wherein said emulsion has a total non-volatile content of from 20% to 60% by weight.
Claim 7
Dependent Claim
18 words
A method according to claim 5, wherein said polymeric material comprises a polymer of acrylate and methacrylate esters.
Claim 8
Dependent Claim
15 words
A method according to claim 1, wherein said cementitious tile comprises a concrete outer surface.
Claim 9
Dependent Claim
18 words
A method according to claim 6, wherein said esters have undergone some degree of crosslinking with other compounds.
References Cited (Backward Citations)
US2778283A
Cited
US3085907A
Cited
US3027294A
Cited
AU463892B2
Cited
US3986994A
Cited
US4134956A
Cited
GB1473308A
Cited
DE2526283A1
Cited
US4036839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |