Patent US4999216A successfully refreshed from Google Patents.
US4999216A
Expired / Lapsed
US
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Method of coating concrete floors with photocurable coatings
Assignee: Covestro Resins BV
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Filing: 1989-08-21
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Granted: 1991-03-12
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Expires: 2009-08-21
Abstract
Abstract A method of coating a concrete floor is disclosed in which the concrete surface is coated with a homogeneous liquid coating composition containing maleate or fumarate unsaturation in combination with vinyl ether unsaturation and a ketonic photoinitiator, the wet coating is allowed to seep into the concrete surface and to flow out on the concrete surface to form a smooth coating, and this coating is cured by exposing it at light having a wavelength in the range of from about 200 to about 600 nanometers.
Inventors
- 👤 Joseph Gaske
- 👤 John J. Krajewski
- 👤 Gerry K. Noren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:40
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; C; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/48; C04B41/4826; C04B41/4857; C04B41/60; C04B41/61; C04B41/62; C04B41/63; E; E04; E04F; E04F21/00; E04F21/20; E04F21/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31935; Y10T428/4935
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
82 words
A method of coating a concrete floor comprising coating said floor with a homogeneous liquid coating composition comprising a vinyl ether monomer, oligomer or polymer; a polyethylenic maleic or fumaric polyester and a ketonic photoinitiator, allowing the wet coating to seep into the concrete surface and to flow out on the concrete surface to form a smooth coating, and curing said coating by exposing the same to light having a wavelength in the range of from about 200 to about 600 nanometers.
Claim 2
Independent Claim
82 words
A method of coating a concrete floor comprising coating said floor with a homogeneous liquid coating composition comprising a vinyl ether monomer, oligomer or polymer; a polyethylenic maleic or fumaric polyester and a ketonic photoinitiator, allowing the wet coating to seep into the concrete surface and to flow out on the concrete surface to form a smooth coating, and curing said coating by exposing the same to light having a wavelength in the range of from about 200 to about 600 nanometers.
Claim 3
Dependent Claim
33 words
A method of coating a concrete floor as recited in claim 1 in which said liquid coating composition contains an hydroxy or alkoxy-functional acetophenone derivative or a benzoyl diaryl phosphine oxide as photoinitiator.
Claim 4
Dependent Claim
35 words
A method of coating a concrete floor as recited in claim 1 in which said concrete floor has its entire surface coated with said liquid coating before said coating is exposed to a said light.
Claim 5
Dependent Claim
24 words
A method of coating a concrete floor as recited in claim 1 in which said light source is carried in front of wheeled carrier.
Claim 6
Dependent Claim
50 words
A method of coating a concrete floor as recited in claim 4 in which said light source extends forwardly of the wheels and points downwardly to direct the light energy upon the floor in advance of the wheels and in a lateral path wider than the spacing between the wheels.
Claim 7
Dependent Claim
31 words
A method of coating a concrete floor as recited in claim 1 in which said liquid coating composition contains a combination of a polymaleate or a polyfumarate with a polyvinyl ether
Claim 8
Dependent Claim
30 words
A method of coating a concrete floor as recited in claim 6 in which said composition comprises a blend of a polyvinyl ether oligomer and a maleic or fumaric-unsaturated polyester.
Claim 9
Dependent Claim
32 words
A method of coating a concrete floor as recited in claim 7 in which said polyvinyl ether oligomer and said unsaturated polyester are present in a weight ratio of 5:95 to 95:5.
Claim 10
Dependent Claim
50 words
A method of coating a concrete floor as recited in claim 8 in which said unsaturated polyester is an hydroxy-functional liquid resin having an acid value of less than 30 and said polyvinyl ether oligomer and said unsaturated polyester are present in a weight ratio of from 20:80 to 80:20.
Claim 11
Dependent Claim
58 words
A method of coating a concrete floor as recited in claim 9 in which said polyester is a maleic acid, maleic anhydride or fumaric acid polyester with a dihydric alcohol containing from 2-8 carbon atoms in a ratio of hydroxy groups to carboxyl groups of from 1.1:1.0 to 1.5:10 and having an acid number of less than 30.
Claim 12
Dependent Claim
36 words
A method of coating a concrete floor as recited in claim 1 in which the equivalent ratio of the vinyl ether and maleate or fumarate groups is in the range of about 3:1 to about 1:3.
Claim 13
Dependent Claim
79 words
A method of coating a concrete floor as recited in claim 11 in which said photoinitiator has the formula: ##STR8## in which R' is an optional hydrocarbon substituent containing from 1 to 10 carbon atoms, and X is selected from the group consisting of hydroxy, C 1 -C 4 alkoxy, C 1 -C 8 alkyl, cycloalkyl, halogen, and phenyl, or 2 Xs together are cycloalkyl, at least one X being selected from hydroxy and C 1 -C 4 alkoxy.
Claim 14
Dependent Claim
49 words
A method of coating a concrete floor as recited in claim 1 in which said photoinitiator has the formula: ##STR9## in which R' is an optional hydrocarbon substituent independently selected to contain from 1 to 10 carbon atoms and n is independently selected to be from 0 to 3.
Claim 15
Independent Claim
112 words
A method of coating a concrete floor comprising coating said floor with a homogeneous liquid coating composition comprises a blend of a polyvinyl ether oligomer and a maleic or fumaric-unsaturated polyester, the equivalent ratio of the vinyl ether and maleate or fumarate groups being in the range of about 3:1 to about 1:3, and an hydroxy or alkoxy-functional acetophenone derivative or a benzoyl diaryl phosphine oxide as photoinitiator, allowing the wet coating to seep into the concrete surface and to flow out on the concrete surface to form a smooth coating, and curing said coating by exposing the same to light in the range of from about 200 to about 600 nanometers.
Claim 16
Independent Claim
112 words
A method of coating a concrete floor comprising coating said floor with a homogeneous liquid coating composition comprises a blend of a polyvinyl ether oligomer and a maleic or fumaric-unsaturated polyester, the equivalent ratio of the vinyl ether and maleate or fumarate groups being in the range of about 3:1 to about 1:3, and an hydroxy or alkoxy-functional acetophenone derivative or a benzoyl diaryl phosphine oxide as photoinitiator, allowing the wet coating to seep into the concrete surface and to flow out on the concrete surface to form a smooth coating, and curing said coating by exposing the same to light in the range of from about 200 to about 600 nanometers.
Claim 17
Dependent Claim
45 words
A method of coating concrete floor as recited in claim 14 in which said photoinitiator has the formula: ##STR10## in which R is an alkylene group containing from 2-8 carbon atoms and R' is an optional hydrocarbon substituent containing from 1 to 10 carbon atoms.
Claim 18
Dependent Claim
33 words
A method of coating concrete floors as recited in claim 15 in which the hydroxy group in said formula is in the 2 position with respect to the carbonyl group in said formula.
Claim 19
Dependent Claim
24 words
A method of coating concrete floors as recited in claim 16 in which the hydroxy group in said formula is a tertiary hydroxy group.
Claim 20
Dependent Claim
23 words
A method of coating concrete floors as recited in claim 14 in which said photoinitiator is the compound 2,4,6-trimethyl benzoyl diphenyl phosphine oxide.
Claim 21
Dependent Claim
24 words
Concrete coated with a photocured homogeneous liquid coating composition containing maleate or fumarate unsaturation in combination with vinyl ether unsaturation and a ketonic photoinitiator.
Claim 22
Dependent Claim
24 words
Concrete coated with a photocured homogeneous liquid coating composition containing maleate or fumarate unsaturation in combination with vinyl ether unsaturation and a ketonic photoinitiator.
References Cited (Backward Citations)
US4042476A
Cited
US4035321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-11 | 1994-09-10 | 1995-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-11 | 1998-09-10 | 1999-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-11 | 2002-09-10 | 2003-03-12 | $7700.00 | Window Closed / Lapsed |