US3959568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
α-Alkoxystyrene resinous adhesives and laminates
Assignee: Phillips Petroleum Co
•
Filing: 1974-06-25
•
Granted: 1976-05-25
•
Expires: 1994-06-25
Abstract
Abstract Resinous graft copolymers useful in adhesive formulations are prepared by polymerization of an alkoxystyrene with an olefinically unsaturated nitrile in a solution or dispersion of a rubber. The polymeric compositions can be applied to surfaces as a hot melt adhesive or solvent cement. Laminates formed with the resinous graft copolymers exhibit substantial lap shear strength.
Inventors
- 👤 Harold Wayne Hill, Jr.
- 👤 Charles W. Moberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; C; C08; C08F; C08F279/00; C08F279/02; B32B7/00; B32B7/04; B32B7/12; B32B2307/00; B32B2307/50; B32B2307/542; B32B2311/00; B32B2311/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31909; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
132 words
A plurality of layers having, between adjacent surfaces thereof as a bonding material therefor, a resinous graft copolymer product produced by copolymerizing (a) an alpha-alkoxystyrene represented by the formula ##SPC2## wherein each R is selected from hydrogen, methyl, and ethyl, and R' is an alkyl radical having 1 to 6 carbon atoms, and (b) acrylonitrile and/or methacrylonitrile in (c) a solution or liquid suspension of a synthetic rubber prepared by polymerization of conjugated dienes or copolymerization of conjugated dienes with another monomer in the presence of a free radical polymerization initiator wherein the amount of ingredients in the resinous copolymer product are 20-45 weight percent of the resin derived from rubber, 35-50 weight percent of the resin derived from alpha-alkoxystyrene, and 20-35 weight percent of the resin derived from acrylonitrile and/or methacrylonitrile.
Claim 2
Dependent Claim
132 words
A plurality of layers having, between adjacent surfaces thereof as a bonding material therefor, a resinous graft copolymer product produced by copolymerizing (a) an alpha-alkoxystyrene represented by the formula ##SPC2## wherein each R is selected from hydrogen, methyl, and ethyl, and R' is an alkyl radical having 1 to 6 carbon atoms, and (b) acrylonitrile and/or methacrylonitrile in (c) a solution or liquid suspension of a synthetic rubber prepared by polymerization of conjugated dienes or copolymerization of conjugated dienes with another monomer in the presence of a free radical polymerization initiator wherein the amount of ingredients in the resinous copolymer product are 20-45 weight percent of the resin derived from rubber, 35-50 weight percent of the resin derived from alpha-alkoxystyrene, and 20-35 weight percent of the resin derived from acrylonitrile and/or methacrylonitrile.
Claim 3
Dependent Claim
47 words
A laminate according to claim 1 wherein the amount of ingredients in the resinous copolymer product are 25-35 weight percent of the resin derived from rubber, 40-45 weight percent of the resin derived from alpha-alkoxystyrene, and 25-30 weight percent of the resin derived from acrylonitrile and/or methacrylonitrile.
Claim 4
Dependent Claim
14 words
A laminate according to claim 1 wherein the rubber is a butadienestyrene block copolymer.
Claim 5
Dependent Claim
26 words
A laminate according to claim 1 wherein the rubber is a polymer of a conjugated diene, the alpha-alkoxystyrene is alpha-methoxystyrene, and the third component is acrylonitrile.
Claim 6
Dependent Claim
18 words
An article of manufacture according to claim 1 wherein the layers are metal, plastic, wood, paper, or leather.
Claim 7
Dependent Claim
17 words
A laminate according to claim 4 wherein the polymer of a conjugated diene is a butadiene-styrene copolymer.
Claim 8
Dependent Claim
22 words
A laminate according to claim 5 wherein the resinous graft copolymer product is produced from a butadiene-styrene block copolymer, alphamethoxystyrene, and acrylonitrile.
Claim 9
Dependent Claim
166 words
A process for uniting surfaces of elements which comprises applying to at least one of said surfaces a resinous graft copolymer product produced by copolymerizing (a) an alpha-alkoxystyrene represented by the formula ##SPC3## wherein each R is selected from hydrogen, methyl, and ethyl, and R' is an alkyl radical having 1 to 6 carbon atoms, and (b) acrylonitrile and/or methacrylonitrile in (c) a solution or liquid suspension of a synthetic rubber prepared by polymerization of conjugated dienes or copolymerization of conjugated dienes with another monomer in the presence of a free radical polymerization initiator wherein the amount of ingredients in the resinous copolymer product are 20-45 weight percent of the resin derived from rubber, 35-50 weight percent of the resin derived from alpha-alkoxystyrene, and 20-35 weight percent of the resin derived from acrylonitrile and/or methacrylonitrile, holding said surfaces contiguous to one another with said polymeric composition disposed therebetween, and allowing said composition to bond to said surfaces and form a structure having good lap shear strength.
Claim 10
Dependent Claim
166 words
A process for uniting surfaces of elements which comprises applying to at least one of said surfaces a resinous graft copolymer product produced by copolymerizing (a) an alpha-alkoxystyrene represented by the formula ##SPC3## wherein each R is selected from hydrogen, methyl, and ethyl, and R' is an alkyl radical having 1 to 6 carbon atoms, and (b) acrylonitrile and/or methacrylonitrile in (c) a solution or liquid suspension of a synthetic rubber prepared by polymerization of conjugated dienes or copolymerization of conjugated dienes with another monomer in the presence of a free radical polymerization initiator wherein the amount of ingredients in the resinous copolymer product are 20-45 weight percent of the resin derived from rubber, 35-50 weight percent of the resin derived from alpha-alkoxystyrene, and 20-35 weight percent of the resin derived from acrylonitrile and/or methacrylonitrile, holding said surfaces contiguous to one another with said polymeric composition disposed therebetween, and allowing said composition to bond to said surfaces and form a structure having good lap shear strength.
Claim 11
Dependent Claim
16 words
A process according to claim 8 wherein the layers are metal, plastic, wood, paper, or leather.
Claim 12
Dependent Claim
22 words
A process according to claim 8 wherein said resinous graft copolymer is a product of a polymer of butadiene, alpha-methoxystyrene, and acrylonitrile.
Claim 13
Dependent Claim
16 words
A process according to claim 10 wherein said polymer of butadiene is a butadiene-styrene block copolymer.
References Cited (Backward Citations)
US2783166A
Cited
US3328488A
Cited
US3239478A
Cited
US3436440A
Cited
US3641209A
Cited
US3617364A
Cited
US3826709A
Cited
US3751524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |