Patent US3841895A successfully refreshed from Google Patents.
US3841895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hydrocarbon rubber substrate finished with a thermosetting acrylic enamel
Assignee: EIDP Inc
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Filing: 1972-12-29
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Granted: 1974-10-15
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Expires: 1992-12-29
Abstract
Abstract The flexible hydrocarbon rubber substrate finished with a thermosetting acrylic enamel is useful for automobile and truck bumpers, flexible filler panels located between the bumper and the chassis, flexible fender extensions, flexible exterior trim parts and other impact and energy absorbing parts and has the following structure: (1) A FINISH OF A CROSS-LINKED THERMOSETTING ACRYLIC ENAMEL OF (A) an acrylic polymer of an alkyl methacrylate having one-four carbon atoms in the alkyl group or styrene or mixtures thereof, an alkyl methacrylate having 2-12 carbon atoms in the alkyl group or an alkyl acrylate having 1-12 carbon atoms in the alkyl group, a hydroxy alkyl acrylate or methacrylate or a mixture thereof; and an Alpha , Beta -ethylenically unsaturated dicarboxylic acid; and (B) a heat reactive condensate such as an alkylated melamine formaldehyde resin or a polyisocyanate; firmly adhered to (2) A SURFACE ACTIVATED SATURATED OR UNSATURATED HYDROCARBON RUBBER SUCH AS ETHYLENE-PROPYLENE COPOLYMER RUBBER WHICH MAY INCLUDE A COPOLYMERIZED DIENE MONOMER, STYRENE-BUTADIENE COPOLYMER RUBBER, POLYBUTADIENE RUBBER, POLYISOPRENE RUBBER OR BUTYL RUBBER.
Inventors
- 👤 R Hick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:44
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/625; C08G18/6254; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08J2321/00; C08J2433/00; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31547
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
244 words
A FLEXIBLE HYDROCARBON RUBBER SUBSTRATE FINISHED WITH 0.1-10 MIL THICK FINISH OF A CROSS-LINKED THERMOSETTING ACRYLIC ENAMEL; WHEREIN THE FILM-FORMING CONSTITUENTS OF THE ENAMEL COMPRISES: A. 70-95 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE FILM-FORMING CONSTITUENTS, OF AN ACRYLIC POLYMER CONSISTING ESSENTIALLY OF 1. 19-44 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN ALKYL METHYACRYLATE HAVING ONE TO FOUR CARBON ATOMS IN THE ALKYL GROUP OR ALKYLENE, OR A MIXTURE THEREOF: 2. 50-75 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN ALKYL METHARCYLATE HAVING 6-12 CARBON ATOMS IN THE ALKYL GROUP OR AN ALKYL ACRYLATE HAVING 2-12 CARBON ATOMS IN THE AKYL GROUP OR A MIXTURE THEREOF; 3. 5-20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF A HYDROXY ALKYL ACRYLATE OR A HYDROXY ALKYL METHACRYLATE OR A MIXTURE THEREOF HAVING TWO OR FOUR CARBON ATOMS IN THE ALKYL GROUPS; AND 4. 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID; B. 5-30 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE FILM-FORMING CONSTITUENTS, OF A COMPATIBLE ALKYLATED MELAMINE FORMALDEHYDE HAVING ONE TO EIGHT CARBON ATOMS IN THE ALKYL GROUP OR A POLYISOCYANATE; WHEREIN THE FLEXIBLE HYDROCARBON SUBSTRATE COMPRISES A SURFACE ACTIVATED SATURATED OR UNSATURATED HYDROCARBONS RUBBER FROM THE GROUP OF ETHYLENE-PROPYLENE COPOLYMER RUBBER, ETHYLENE-PROPYLENE-DIENE COPOLYMER RUBBER, STYRENEBUTADIENE COPOLYMER RUBBER, POLYBUTADIENE RUBBER, POLYISOPRENE RUBBER AND BUTYL RUBBER.
Claim 2
Dependent Claim
244 words
A FLEXIBLE HYDROCARBON RUBBER SUBSTRATE FINISHED WITH 0.1-10 MIL THICK FINISH OF A CROSS-LINKED THERMOSETTING ACRYLIC ENAMEL; WHEREIN THE FILM-FORMING CONSTITUENTS OF THE ENAMEL COMPRISES: A. 70-95 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE FILM-FORMING CONSTITUENTS, OF AN ACRYLIC POLYMER CONSISTING ESSENTIALLY OF 1. 19-44 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN ALKYL METHYACRYLATE HAVING ONE TO FOUR CARBON ATOMS IN THE ALKYL GROUP OR ALKYLENE, OR A MIXTURE THEREOF: 2. 50-75 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN ALKYL METHARCYLATE HAVING 6-12 CARBON ATOMS IN THE ALKYL GROUP OR AN ALKYL ACRYLATE HAVING 2-12 CARBON ATOMS IN THE AKYL GROUP OR A MIXTURE THEREOF; 3. 5-20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF A HYDROXY ALKYL ACRYLATE OR A HYDROXY ALKYL METHACRYLATE OR A MIXTURE THEREOF HAVING TWO OR FOUR CARBON ATOMS IN THE ALKYL GROUPS; AND 4. 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE ACRYLIC POLYMER, OF AN A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ACID; B. 5-30 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE FILM-FORMING CONSTITUENTS, OF A COMPATIBLE ALKYLATED MELAMINE FORMALDEHYDE HAVING ONE TO EIGHT CARBON ATOMS IN THE ALKYL GROUP OR A POLYISOCYANATE; WHEREIN THE FLEXIBLE HYDROCARBON SUBSTRATE COMPRISES A SURFACE ACTIVATED SATURATED OR UNSATURATED HYDROCARBONS RUBBER FROM THE GROUP OF ETHYLENE-PROPYLENE COPOLYMER RUBBER, ETHYLENE-PROPYLENE-DIENE COPOLYMER RUBBER, STYRENEBUTADIENE COPOLYMER RUBBER, POLYBUTADIENE RUBBER, POLYISOPRENE RUBBER AND BUTYL RUBBER.
Claim 3
Dependent Claim
40 words
50-75 percent by weight, based on the weight of the acrylic polymer, of an alkyl methacrylate having 6-12 carbon atoms in the alkyl group or an alkyl acrylate having 2-12 carbon atoms in the alkyl group or a mixture thereof;
Claim 4
Dependent Claim
40 words
50-75 percent by weight, based on the weight of the acrylic polymer, of an alkyl methacrylate having 6-12 carbon atoms in the alkyl group or an alkyl acrylate having 2-12 carbon atoms in the alkyl group or a mixture thereof;
Claim 5
Dependent Claim
15 words
55-65 percent by weight, based on the weight of the acrylic polymer, of bUtyl acrylate;
Claim 6
Dependent Claim
15 words
55-65 percent by weight, based on the weight of the acrylic polymer, of bUtyl acrylate;
Claim 7
Dependent Claim
24 words
The flexible rubber substrate of claim 1 in which a primer layer is between the rubber substrate and the finish of the acrylic enamel.
Claim 8
Dependent Claim
15 words
55-65 percent by weight, based on the weight of the acrylic polymer, of butyl acrylate;
Claim 9
Dependent Claim
15 words
55-65 percent by weight, based on the weight of the acrylic polymer, of butyl acrylate;
Claim 10
Dependent Claim
16 words
8-12 percent by weight, based on the weight of the acrylic polymer, of hydroxy ethyl acrylate;
Claim 11
Dependent Claim
16 words
8-12 percent by weight, based on the weight of the acrylic polymer, of hydroxy ethyl acrylate;
Claim 12
Dependent Claim
35 words
The flexible rubber substrate of claim 1 in which the thermosetting acrylic enamel finish comprises A. 85-90 percent by weight, based on the weight of the film-forming constituents, of an acrylic polymer consisting essentially of
Claim 13
Dependent Claim
16 words
8-12 percent by weight, based on the weight of the acrylic polymer, of hydroxy ethyl acrylate;
Claim 14
Dependent Claim
16 words
8-12 percent by weight, based on the weight of the acrylic polymer, of hydroxy ethyl acrylate;
Claim 15
Dependent Claim
37 words
5-20 percent by weight, based on the weight of the acrylic polymer, of a hydroxy alkyl acrylate or a hydroxy alkyl methacrylate or a mixture thereof having two to four carbon atoms in the alkyl groups; and
Claim 16
Dependent Claim
37 words
5-20 percent by weight, based on the weight of the acrylic polymer, of a hydroxy alkyl acrylate or a hydroxy alkyl methacrylate or a mixture thereof having two to four carbon atoms in the alkyl groups; and
Claim 17
Dependent Claim
89 words
1 to 20 percent by weight, based on the weight of the acrylic polymer, of an Alpha , Beta -ethylenically unsaturated carboxylic acid; B. 5-30 percent by weight, based on the weight of the film-forming constituents, of a compatible alkylated melamine formaldehyde having one to eight carbon atoms in the alkyl group or a polyisocyanate; wherein the flexible hydrocarbon substrate comprises a surface activated saturated or unsaturated hydrocarbon rubber from the group of ethylene-propylene copolymer rubber, ethylene-propylene-diene copolymer rubber, styrene-butadiene copolymer rubber, polybutadiene rubber, polyisoprene rubber and butyl rubber.
Claim 18
Dependent Claim
89 words
1 to 20 percent by weight, based on the weight of the acrylic polymer, of an Alpha , Beta -ethylenically unsaturated carboxylic acid; B. 5-30 percent by weight, based on the weight of the film-forming constituents, of a compatible alkylated melamine formaldehyde having one to eight carbon atoms in the alkyl group or a polyisocyanate; wherein the flexible hydrocarbon substrate comprises a surface activated saturated or unsaturated hydrocarbon rubber from the group of ethylene-propylene copolymer rubber, ethylene-propylene-diene copolymer rubber, styrene-butadiene copolymer rubber, polybutadiene rubber, polyisoprene rubber and butyl rubber.
Claim 19
Dependent Claim
104 words
1-5 percent by weight, based on the weight of the acrylic polymer of acrylic acid; B. 10-15 percent by weight, based on the weight of the film-forming constituents, of a butylated melamine formaldehyde resin, wherein the flexible hydrocarbon rubber substrate comprises a surface activated ethylene-propylene-diene polymer rubber which consists essentially of 50-75 percent by weight ethylene, 25-45 percent by weight propylene and 2-8 percent by weight of a non-conjugated diene selected from the group consisting essentially of 1,4-hexandiene, 5-ethylidene-2-norbornene and dicyclopentadiene, and wherein the flexible hydrocarbon rubber substrate is surface activated by having deposited thereon benzophenone and having the surface exposed to ultraviolet light.
Claim 20
Dependent Claim
104 words
1-5 percent by weight, based on the weight of the acrylic polymer of acrylic acid; B. 10-15 percent by weight, based on the weight of the film-forming constituents, of a butylated melamine formaldehyde resin, wherein the flexible hydrocarbon rubber substrate comprises a surface activated ethylene-propylene-diene polymer rubber which consists essentially of 50-75 percent by weight ethylene, 25-45 percent by weight propylene and 2-8 percent by weight of a non-conjugated diene selected from the group consisting essentially of 1,4-hexandiene, 5-ethylidene-2-norbornene and dicyclopentadiene, and wherein the flexible hydrocarbon rubber substrate is surface activated by having deposited thereon benzophenone and having the surface exposed to ultraviolet light.
Claim 21
Dependent Claim
18 words
The flexible rubber substrate of claim 3 in which the substrate comprises a surface activated ethylene-propylenediene copolymer rubber.
Claim 22
Dependent Claim
34 words
1-5 percent by weight, based on the weight of the acrylic polymer of acrylic acid; B. 10-15 percent by weight, based on the weight of the film-forming constituents, of a butylated melamine formaldehyde resin.
Claim 23
Dependent Claim
34 words
1-5 percent by weight, based on the weight of the acrylic polymer of acrylic acid; B. 10-15 percent by weight, based on the weight of the film-forming constituents, of a butylated melamine formaldehyde resin.
Claim 24
Dependent Claim
16 words
The flexible rubber substrate of claim 3 in which the substrate comprises a styrene-butadiene copolymer rubber.
Claim 25
Dependent Claim
15 words
The flexible rubber substrate of claim 3 in which the substrate comprises a polybutadiene rubber.
Claim 26
Dependent Claim
15 words
The flexible rubber substrate of claim 3 in which the substrate comprises a polyisoprene rubber.
Claim 27
Dependent Claim
15 words
The flexible rubber substrate of claim 3 in which the substrate comprises a butyl rubber.
Claim 28
Dependent Claim
38 words
The flexible substrate of claim 3 in which a primer layer is between the rubber substrate and the finish of the acrylic enamel and comprises a polyurethane of a hydroxy terminated polyalkylene ether glycol and an aromatic diisocyanate.
Claim 29
Dependent Claim
23 words
The flexible substrate of claim 9 in which the primer layer consists essentially of a hydroxy terminated polypropylene ether glycol and toluene diisocyanate.
Claim 30
Dependent Claim
44 words
The flexible substrate of claim 3 in which a primer layer is between the rubber substrate and the finish of the acrylic enamel and comprises a polyurethane of a polyester chain extended with an organic diisocyanate and cross-linked with an alkylated melamine formaldehyde resin.
Claim 31
Dependent Claim
52 words
The flexible rubber substrate of claim 3 in which the substrate comprises a surface activated ethylene-propylene-diene polymer rubber which consists essentially of 50-75 percent by weight ethylene, 25-45 percent by weight propylene and 2-8 percent by weight of a non-conjugated diene selected from the group consisting essentially of 1,4-hexandiene, 5-ethylidene-2-norbornene and dicyclopentadiene.
Claim 32
Dependent Claim
38 words
The flexible rubber substrate of claim 12 in which the substrate of the surface activated ethylene-propylene-diene copolymer has deposited on its surface benzophenone and the surface has been exposed to ultraviolet light to form a surface activated substrate.
Claim 33
Dependent Claim
50 words
The flexible rubber substrate of claim 1 in which the thermosetting acrylic enamel finish contains 0.1-30 percent by weight pigment and the film-forming constituents of the enamel consist essentially of A. 85-90 percent by weight, based on the weight of the film-forming constituents, of an acrylic polymer consisting essentially of
Claim 34
Dependent Claim
42 words
The flexible rubber substrate of claim 1 in which the cross-linking agent for the acrylic enamel is an aliphatic diisocyanate or a cycloaliphatic diisocyanate. 16. The flexible rubber substrate of claim 16 in which the diisocyanate is the biuret of hexamethylene diisocyanate.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |