US4263372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating and/or impregnating porous substrates, and products obtained thereby
Assignee: Rohm and Haas Co
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Filing: 1979-01-12
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Granted: 1981-04-21
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Expires: 1999-01-12
Abstract
Abstract This application concerns compositions comprising a mixture of an air-drying dicyclopentenyl acrylate or methacrylate binder and a granular or particulate aggregate material, which may comprise a hydraulic cement, and is adapted to be formed by casting, extruding, or molding in any fashion into any desired shape and air-drying the resulting shaped article, thereby producing an integral, solid article of unitary mass and structure. The dicyclopentenyl (meth)acrylate may be used as an impregnant, polymerizable in situ, for already formed articles of porous nature, e.g., concrete, wood, pressed boards, and pressed powdered metal, such as iron, aluminum, steel, etc., to reduce the permeability at their surfaces and provide hard, continuous, hydrophobic, wear-resistant, and weather-resistant surfaces thereon.
Inventors
- 👤 William D. Emmons
- 👤 Peter R. Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:06
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B24/00; C04B24/04; C04B24/045; C04B24/24; C04B24/26; C04B24/2641; C04B26/00; C04B26/02; C04B26/04; C04B26/06; C04B41/45; C04B41/46; C04B41/48; C04B41/483; C04B41/60; C04B41/61; C04B41/62; C04B41/63; C08; C08L; C08L97/00; C08L97/02; B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; C08L33/00; C08L33/04; C08L33/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
A method of providing a porous-surfaced formation with a hardened, abrasion-resistant, relatively impermeable surface adapted to resist indentation by impact as well as penetration by moisture and other liquids, thereby rendering such porous-surfaced formation resistant to weathering and atmospheric smog which comprises impregnating the porous surface of the formation with a solution of a metal-containing drier in a liquid mixture of (A) at least one of dicyclopentenyl acrylate and dicyclopentenyl methacrylate with (B) about 0.5% to 60% by weight, based on the weight of (A), of another relatively non-volatile monomer selected from the group consisting of C 12 -C 30 alkyl and C 12 -C 30 alkenyl acrylates and methacrylates, the amount of drier in the solution being from 0.0005 to 2 weight percent based on the weight of (A), and allowing the applied solution to oxidatively cure in the presence of air at ambient conditions.
Claim 2
Independent Claim
146 words
A method of providing a porous-surfaced formation with a hardened, abrasion-resistant, relatively impermeable surface adapted to resist indentation by impact as well as penetration by moisture and other liquids, thereby rendering such porous-surfaced formation resistant to weathering and atmospheric smog which comprises impregnating the porous surface of the formation with a solution of a metal-containing drier in a liquid mixture of (A) at least one of dicyclopentenyl acrylate and dicyclopentenyl methacrylate with (B) about 0.5% to 60% by weight, based on the weight of (A), of another relatively non-volatile monomer selected from the group consisting of C 12 -C 30 alkyl and C 12 -C 30 alkenyl acrylates and methacrylates, the amount of drier in the solution being from 0.0005 to 2 weight percent based on the weight of (A), and allowing the applied solution to oxidatively cure in the presence of air at ambient conditions.
Claim 3
Dependent Claim
31 words
A method according to claim 1 in which the formation is a concrete floor, pavement, or deck on a ship or bridge, or is a weathered archeological artifact, sculpture, or formation.
Claim 4
Dependent Claim
31 words
A method according to claim 1 in which the drier is an oxide, complex or salt of a polyvalent metal selected from calcium, copper, zinc, manganese, lead, cobalt, iron, and zirconium.
Claim 5
Dependent Claim
14 words
A method according to claim 2 in which the drier contains cobalt II .
Claim 6
Dependent Claim
13 words
A method according to claim 2 in which the drier contains cobalt naphthenate.
Claim 7
Dependent Claim
25 words
A method according to claim 1 in which the solution applied also contains 0.1 to 2% by weight of a volatile ketone-oxime or aldehyde-oxime stabilizer.
Claim 8
Dependent Claim
8 words
A product of the process of claim 1.
Claim 9
Dependent Claim
8 words
A product of the process of claim 2.
Claim 10
Dependent Claim
8 words
A product of the process of claim 3.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |