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US3950581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of prefabricated panels
Assignee: Manufacture Francaise des Chaussures ERAM SA
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Filing: 1974-07-12
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Granted: 1976-04-13
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Expires: 1994-07-12
Abstract
Abstract The invention relates to the manufacture of prefabricated panels from tiles, for example of sandstone, earthenware, metals, wood or rubber, the tiles being joined by a composition consisting of a heat-cured mixture of a substantially stoichiometric mixture of an epoxy resin and certain resins containing functional groups reactive therewith, and a polymer selected from polyvinyl chloride, polyvinyl acetochloride and nitrile rubber. Panels in accordance with the invention can be laid rapidly without the problems encountered with conventional methods in which the bonding agent between the tiles must be left to harden before loads are applied to the tiles.
Inventors
- 👤 Aristide Maurin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:13
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0862; E04F15/00; E04F15/02; E04F15/02194; E04F15/04; E04F15/041; E04F15/06; E04F15/08; E04F15/082; E04F15/10; E04F15/105; E04F15/107; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
A prefabricated tile panel comprising: 1. a support sheet of asbestos-coated polyvinyl chloride; 2. a plurality of spaced apart tile; and 3. means for bonding said tile to one another and to said support sheet, said means being a mixture comprising: a. 1 to 10% by weight of a substantially stoichiometric mixture of at least one epoxide resin and at least one product selected from the group consisting of phenolic resins, polyamides, polyamines, polyisocyanates, dicyandiamines, and acrylics; and b. 10 to 50% by weight of at least one polymer selected from the group consisting of polyvinylchloride, the poly-vinylchloride-acetate and nitrile rubbers, c. the balance, materials comprising plasticizer, fire retardant, pigment or filler.
Claim 2
Dependent Claim
112 words
A prefabricated tile panel comprising: 1. a support sheet of asbestos-coated polyvinyl chloride; 2. a plurality of spaced apart tile; and 3. means for bonding said tile to one another and to said support sheet, said means being a mixture comprising: a. 1 to 10% by weight of a substantially stoichiometric mixture of at least one epoxide resin and at least one product selected from the group consisting of phenolic resins, polyamides, polyamines, polyisocyanates, dicyandiamines, and acrylics; and b. 10 to 50% by weight of at least one polymer selected from the group consisting of polyvinylchloride, the poly-vinylchloride-acetate and nitrile rubbers, c. the balance, materials comprising plasticizer, fire retardant, pigment or filler.
Claim 3
Dependent Claim
16 words
A panel according to claim 1, wherein the mixture contains from 10 to 50% of poly-vinylchloride.
Claim 4
Dependent Claim
23 words
A panel according to claim 1, wherein the mixture contains from 10 to 50% of a mixture of poly-vinylchloride and the poly-vinylchloride acetate.
Claim 5
Dependent Claim
17 words
A panel according to claim 1, wherein the mixture contains from 10 to 50% of nitrile rubber.
Claim 6
Dependent Claim
65 words
A panel according to claim 1, wherein the mixture comprises about 35% of powdered poly-vinylchloride, about 15% of dioctyl phthalate, about 5% of diocyl adipate, about 5% of fire-resistant plasticizer, about 3% of antichlorine stabilizer, about 15% of titanium oxide, about 15% of fire resistant filler, about 3% of an epicote resin, and about 3% of a phenolic resin 49.58, all percentages being by weight.
Claim 7
Dependent Claim
30 words
A panel according to claim 1, wherein the tiles comprise a material selected from the group consisting of sandstone, earthenware, baked earth, glass, ceramic, glazed ceramic, aluminum and stainless steel.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |