US4204984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lignin amine carboxylated conjugated diene tire cord adhesives
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1977-10-17
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Granted: 1980-05-27
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Expires: 1997-10-17
Abstract
Abstract Rubber compounds are readily bonded to tire cords using a dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery carboxylated conjugated diene copolymer and a minor amount of a lignin amine formaldehyde reaction product.
Inventors
- 👤 Terry C. Neubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:54
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A composition comprising an aqueous alkaline dispersion of a minor amount by weight of a mixture of 100 parts of a copolymer of a conjugated diolefin having 4 to 6 carbon atoms and an acrylic acid or lower alkyl substituted acrylic acid and from 6 to 30 parts of a reaction product of formaldehyde and a lignin amine, wherein the lignin amine is selected from the class consisting of a reaction product of lignin, formaldehyde and a primary or secondary amine; a reaction product of lignin with a reaction product of an epichlorohydrin and a tertiary amine; and a a salt of a quaternized lignin amine.
Claim 2
Dependent Claim
106 words
A composition comprising an aqueous alkaline dispersion of a minor amount by weight of a mixture of 100 parts of a copolymer of a conjugated diolefin having 4 to 6 carbon atoms and an acrylic acid or lower alkyl substituted acrylic acid and from 6 to 30 parts of a reaction product of formaldehyde and a lignin amine, wherein the lignin amine is selected from the class consisting of a reaction product of lignin, formaldehyde and a primary or secondary amine; a reaction product of lignin with a reaction product of an epichlorohydrin and a tertiary amine; and a a salt of a quaternized lignin amine.
Claim 3
Dependent Claim
30 words
A composition according to claim 1 in which said two-component mixture is present in said dispersion in an amount of from about 15 to 45% by weight (as dry solids).
Claim 4
Dependent Claim
32 words
A composition according to claim 1 in which said reaction product contains about 5 to 20 parts by weight of a lignin amine and 0 to 10 parts by weight of formaldehyde.
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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |