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US4822688A
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Adhesive compositions based on polypropylene modified by grafting an unsaturated monomer
Assignee: Individual
•
Filing: 1987-06-19
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Granted: 1989-04-18
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Expires: 2007-06-19
Abstract
Abstract Adhesive composition consisting essentially of polypropylene modified by grafting with an acid anhydride to further reacted with a compound bearing at least two groups capable of reacting with the anhydride preferrably a polyol or a polyamine.
Inventors
- 👤 Pierre Nogues
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:01
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/06; C08; C08L; C08L2666/00; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692; Y10T428/31725; Y10T428/31739; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
An adhesive composition consisting essentially of the reaction product of (a) a polypropylene compound consisting of polypropylene modified by grafting thereto an unsaturated monomer bearing an acid anhydride group, with (b) a compound R, bearing at least two amine groups, which are reactive with the anhydride group, in an amount such that the molarity ratio, prior to formation of the reaction product and defined as the ratio of the number of reactive groups carried by the compound R to the number of anhydride groups carried by the grafted polypropylene, is from about 0.01 to about 5 and wherein compound R is at least one member selected from the group consisting of polyamines and oligomers or alpha, omega-diamino polyamides.
Claim 2
Dependent Claim
118 words
An adhesive composition consisting essentially of the reaction product of (a) a polypropylene compound consisting of polypropylene modified by grafting thereto an unsaturated monomer bearing an acid anhydride group, with (b) a compound R, bearing at least two amine groups, which are reactive with the anhydride group, in an amount such that the molarity ratio, prior to formation of the reaction product and defined as the ratio of the number of reactive groups carried by the compound R to the number of anhydride groups carried by the grafted polypropylene, is from about 0.01 to about 5 and wherein compound R is at least one member selected from the group consisting of polyamines and oligomers or alpha, omega-diamino polyamides.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein the polypropylene is grafted with maleic anhydride.
Claim 4
Dependent Claim
13 words
A composition according to claim 1 wherein the compound R is a polyamine.
Claim 5
Dependent Claim
16 words
A composition according to claim 1 wherein compound R is an oligomer of alpha, omega-diamino polyamides.
Claim 6
Dependent Claim
17 words
A composition according to claim 1 wherein compound R is an oligomer of alpha, omega-diamino polyamide 11.
Claim 7
Dependent Claim
17 words
A composition according to claim 1 wherein compound R is an oligomer of alpha, omega-diamino polyamide 12.
Claim 8
Dependent Claim
17 words
A composition according to claim 1 wherein compound R is an oligomer of alpha, omega-diamino polyamide 16.
Claim 9
Dependent Claim
22 words
A process for the manufacture of a composition according to claim 1 wherein the grafted polypropylene is meltcompounded with the compound R.
Claim 10
Dependent Claim
15 words
A composite aluminum article comprising sheets of aluminum joined with a composition of claim 1.
Claim 11
Dependent Claim
16 words
A composite article comprising sheets of a polymeric composition joined with a composition of claim 1.
Claim 12
Dependent Claim
12 words
A composition of claim 2 wherein the compound R is a polyamine.
Claim 13
Dependent Claim
34 words
A composition of claim 2 wherein compound R comprises at least one member selected from the group consisting of oligomers of alpha, omega-diamino polyamide 11, alpha, omega-diamino polyamide 12 and alpha, omega-diamino polyamide 6.
Claim 14
Dependent Claim
16 words
A composition of claim 1 wherein the molarity ratio is from about 0.1 to about 2.
Claim 15
Dependent Claim
16 words
A composition of claim 2 wherein the molarity ratio is from about 0.1 to about 2.
References Cited (Backward Citations)
US4146590A
Cited
US4735992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |