Patent US3674734A successfully refreshed from Google Patents.
US3674734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting acrylic enamel
Assignee: EIDP Inc
•
Filing: 1971-03-12
•
Granted: 1972-07-04
•
Expires: 1991-03-12
Abstract
Abstract The thermosetting acrylic enamel has as the film-forming constituents a blend of: 1. Interpolymer A which consists essentially of styrene; methyl methacrylate; a soft constituent which is either an alkyl acrylate, or an alkyl methacrylate; hydroxy alkyl acrylate or methacrylate and an Alpha , Beta -ethylenically unsaturated monocarboxylic acid; 2. Interpolymer B which consists essentially of styrene or methyl methacrylate, a soft constituent described above, hydroxy alkyl acrylate or methacrylate and an Alpha , Beta ethylenically unsaturated monocarboxylic acid; and 3. A HEAT REACTIVE CONDENSATE. The thermosetting acrylic enamel is useful as a finish for automobiles and trucks and can be used as a finish for plastics.
Inventors
- 👤 Fred W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:04
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08; C08L; C08L2205/00; C08L2205/02; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L33/066; C08L61/00; C08L61/20; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
33 words
INTERPOLYMER A WHICH CONSISTS ESSENTIALLY OF STYRENE; METHYL METHACRYLATE; A SOFT CONSITUENT WHICH IS EITHER AN ALKYL ACRYLATE, OR AN ALKYL METHACRYLATE; HYDROXY ALKYL ACRYLATE OR METHACRYLATE AND AN A,B-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID;
Claim 2
Dependent Claim
33 words
INTERPOLYMER A WHICH CONSISTS ESSENTIALLY OF STYRENE; METHYL METHACRYLATE; A SOFT CONSITUENT WHICH IS EITHER AN ALKYL ACRYLATE, OR AN ALKYL METHACRYLATE; HYDROXY ALKYL ACRYLATE OR METHACRYLATE AND AN A,B-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID;
Claim 3
Dependent Claim
27 words
INTERPOLYMER B WHICH CONSISTS ESSENTIALLY OF STYRENE OR METHYL METACRYLATE, A SOFT CONSTITUENT DESCRIBED ABOVE, HYDROXY ALKYL ACRYLATE OR METACRYLATE AND AN A,BETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID; AND
Claim 4
Dependent Claim
27 words
INTERPOLYMER B WHICH CONSISTS ESSENTIALLY OF STYRENE OR METHYL METACRYLATE, A SOFT CONSTITUENT DESCRIBED ABOVE, HYDROXY ALKYL ACRYLATE OR METACRYLATE AND AN A,BETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID; AND
Claim 5
Dependent Claim
8 words
38-48 percent by weight of said soft constituent;
Claim 6
Dependent Claim
8 words
38-48 percent by weight of said soft constituent;
Claim 7
Dependent Claim
7 words
20-35 percent by weight of methyl methacrylate,
Claim 8
Dependent Claim
7 words
20-35 percent by weight of methyl methacrylate,
Claim 9
Dependent Claim
31 words
The coating composition of claim 1 which contains pigment in a pigment volume concentration of 0.1 to 20 percent by weight and a polymer solids content of 35-45 percent by weight.
Claim 10
Dependent Claim
6 words
25-30 percent by weight methyl methacrylate,
Claim 11
Dependent Claim
6 words
25-30 percent by weight methyl methacrylate,
Claim 12
Dependent Claim
7 words
41-45 percent by weight of butyl acrylate;
Claim 13
Dependent Claim
7 words
41-45 percent by weight of butyl acrylate;
Claim 14
Dependent Claim
7 words
6-10 percent by weight hydroxyethyl acrylate; and
Claim 15
Dependent Claim
7 words
6-10 percent by weight hydroxyethyl acrylate; and
Claim 16
Dependent Claim
6 words
38-42 percent by weight butyl acrylate,
Claim 17
Dependent Claim
6 words
38-42 percent by weight butyl acrylate,
Claim 18
Dependent Claim
40 words
The coating composition of claim 2 in which Interpolymer A has a relative viscosity of about 1.085-1.100 and Interpolymer B has a relative viscosity of 1.055 to 1.065, wherein the relative viscosity is measured at 25* C. in ethylene dichloride.
Claim 19
Dependent Claim
29 words
30-50 percent by weight of a soft constituent selected from the group consisting of an alkyl acrylate and an alkyl methacrylate where the alkyl groups have 2-4 carbon atoms,
Claim 20
Dependent Claim
29 words
30-50 percent by weight of a soft constituent selected from the group consisting of an alkyl acrylate and an alkyl methacrylate where the alkyl groups have 2-4 carbon atoms,
Claim 21
Dependent Claim
10 words
5-12 percent by weight of said hydroxy containing compound; and
Claim 22
Dependent Claim
10 words
5-12 percent by weight of said hydroxy containing compound; and
Claim 23
Dependent Claim
25 words
A HEAT REACTIVE CONDENSATE. THE THERMOSETTING ACRYLIC ENAMEL IS USEFUL AS FINISH FOR AUTOMOBILES AND TRUCKS AND CAN BE USED AS A FINISH FOR PLASTICS.
Claim 24
Dependent Claim
25 words
A HEAT REACTIVE CONDENSATE. THE THERMOSETTING ACRYLIC ENAMEL IS USEFUL AS FINISH FOR AUTOMOBILES AND TRUCKS AND CAN BE USED AS A FINISH FOR PLASTICS.
Claim 25
Dependent Claim
81 words
2-10 percent by weight of an Alpha , Beta -ethylenically unsaturated monocarboxylic acid; said Interpolymer B having a relative viscositY of 1.04 to 1.08 measured at 25* C. in ethylene dichloride; c. 20-40 percent by weight, based on the weight of the polymer blend, of a heat reactive condensate selected from the group consisting of an alkylolated melamine formaldehyde resin where the alkyl group contains 3-4 carbon atoms or a blend of said melamine formaldehyde resin and a urea formaldehyde resin.
Claim 26
Dependent Claim
81 words
2-10 percent by weight of an Alpha , Beta -ethylenically unsaturated monocarboxylic acid; said Interpolymer B having a relative viscositY of 1.04 to 1.08 measured at 25* C. in ethylene dichloride; c. 20-40 percent by weight, based on the weight of the polymer blend, of a heat reactive condensate selected from the group consisting of an alkylolated melamine formaldehyde resin where the alkyl group contains 3-4 carbon atoms or a blend of said melamine formaldehyde resin and a urea formaldehyde resin.
Claim 27
Dependent Claim
31 words
10-20 percent by weight of a hydroxy containing compound selected from the group consisting of a hydroxyalkyl acrylate and a hydroxyalkyl methacrylate wherein the alkyl groups contain 1-4 carbon atoms, and
Claim 28
Dependent Claim
31 words
10-20 percent by weight of a hydroxy containing compound selected from the group consisting of a hydroxyalkyl acrylate and a hydroxyalkyl methacrylate wherein the alkyl groups contain 1-4 carbon atoms, and
Claim 29
Dependent Claim
33 words
The coating composition of claim 3 in which the Alpha , Beta -ethylenically unsaturated monocarboxylic acid of Interpolymers A and B is selected from the group consisting of acrylic acid and methacrylic acid.
Claim 30
Dependent Claim
7 words
12-16 percent by weight hydroxyethyl acrylate and
Claim 31
Dependent Claim
7 words
12-16 percent by weight hydroxyethyl acrylate and
Claim 32
Dependent Claim
44 words
2-6 percent by weight of acrylic acid; said Interpolymer B having an inherent viscosity of 1.055 to 1.065 measured at 25* C. in ethylene dichloride; c. 28-32 percent by weight, based on the weight of the polymer blend, of a butylolated melamine formaldehyde resin.
Claim 33
Dependent Claim
44 words
2-6 percent by weight of acrylic acid; said Interpolymer B having an inherent viscosity of 1.055 to 1.065 measured at 25* C. in ethylene dichloride; c. 28-32 percent by weight, based on the weight of the polymer blend, of a butylolated melamine formaldehyde resin.
Claim 34
Dependent Claim
44 words
1-4 percent by weight acrylic acid; said Interpolymer A having an inherent viscosity of 1.085 to 1.100 measured at 25* C. in ethylene dichloride; b. 8-12 percent by weight, based on the weight of the polymer blend, of Interpolymer B which consists essentially of
Claim 35
Dependent Claim
44 words
1-4 percent by weight acrylic acid; said Interpolymer A having an inherent viscosity of 1.085 to 1.100 measured at 25* C. in ethylene dichloride; b. 8-12 percent by weight, based on the weight of the polymer blend, of Interpolymer B which consists essentially of
Claim 36
Dependent Claim
18 words
The coating composition of claim 4 in which the heat reactive condensate is a butylolated melamine formaldehyde resin.
Claim 37
Dependent Claim
52 words
1-4 percent by weight of an Alpha , Beta -ethylenically unsaturated monocarboxylic acid; said Interpolymer A having a relative viscosity of 1.08 to 1.14 measured at 25* C. in ethylene dichloride; and b. 65-5 percent by weight, based on the weight of the polymer blend, of Interpolymer B which consists essentially of
Claim 38
Dependent Claim
52 words
1-4 percent by weight of an Alpha , Beta -ethylenically unsaturated monocarboxylic acid; said Interpolymer A having a relative viscosity of 1.08 to 1.14 measured at 25* C. in ethylene dichloride; and b. 65-5 percent by weight, based on the weight of the polymer blend, of Interpolymer B which consists essentially of
Claim 39
Dependent Claim
40 words
The coating composition of claim 5 in which the soft constituent of Interpolymers A and B is butyl acrylate, the hydroxy containing compound of Interpolymers A and B is hydroxyethyl acrylate and the hard constituent of Interpolymer B is styrene.
Claim 40
Dependent Claim
74 words
The coating composition of claim 2 in which Interpolymer A consists essentially of 10-25 percent by weight styrene, 20-35 percent by weight methyl methacrylate, 30-50 percent by weight butyl acrylate, 10-30 percent by weight hydroxy ethyl acrylate, 1-4 percent by weight acrylic acid and in which Interpolymer B consists essentially of 35-55 percent by weight styrene, 38-48 percent by weight butyl acrylate, 5-12 percent by weight hydroxyethyl acrylate, 2-10 percent by weight acrylic acid.
Claim 41
Dependent Claim
52 words
The coating composition of claim 1 which comprises 35-45 percent by weight of a thermosetting acrylic polymer blend and a solvent for said polymer blend wherein said polymer blend consists essentially of a. 58-62 percent by weight, based on the weight of the polymer blend, of Interpolymer A which consists essentially of
Claim 42
Dependent Claim
19 words
The coating composition of claim 8 in which the styrene constituent of Interpolymer B is replaced with methyl methacrylate.
Claim 43
Dependent Claim
18 words
A metal substrate coated with a 1-5 mil dried coalesced layer of the coating composition of claim 1.
Claim 44
Dependent Claim
24 words
A ferrous metal substrate having a pigmented primer layer coated with a 1-5 mil dried coalesced layer of the coating composition of claim 1.
Claim 45
Dependent Claim
18 words
A plAstic substrate coated with a 1-5 mil dried coalesced layer of the coating composition 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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |