Patent US4849294A successfully refreshed from Google Patents.
US4849294A
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Coupling agent composition
Assignee: Dow Silicones Corp
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Filing: 1988-06-20
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Granted: 1989-07-18
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Expires: 2008-06-20
Abstract
Abstract Compositions which are particularly useful as coupling agents and primers for polyolefin composites. The compositions comprise fumaric acid and diaminefunctional silanes in mole ratios from 1.0 to 1.4 in nonreactive solvent, particularly water. These compositions are particularly effective in polyethylene composite materials.
Inventors
- 👤 Edwin P. Plueddemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C08K5/54; C08K5/544; C08K9/00; C08K9/04; C08K9/06; C09; C09D; C09D177/00; C09D177/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A composite material comprised of: a nonparticulate surface; and polyolefin adhered to said nonparticulate surface with a composition comprised of; (A) a diamine functional silane chosen from the group consisting of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-2-methyl-3-aminopropyltrimethoxysilane and 3-[2(vinyl benzylamino) ethylamino]propyltrimethoxysilane, (B) fumaric acid; and (C) water, where the mole ratio of (B) to (A) is 1.0 to 1.4.
Claim 2
Dependent Claim
55 words
A composite material comprised of: a nonparticulate surface; and polyolefin adhered to said nonparticulate surface with a composition comprised of; (A) a diamine functional silane chosen from the group consisting of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-2-methyl-3-aminopropyltrimethoxysilane and 3-[2(vinyl benzylamino) ethylamino]propyltrimethoxysilane, (B) fumaric acid; and (C) water, where the mole ratio of (B) to (A) is 1.0 to 1.4.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |