Claims
- 1. A pressure sensitive structural adhesive or sealant composition comprising:
- (a) from 15 to 95 percent by weight of a glycidyl ether-functional telechelic polymer and from 5 to 85 percent by weight of a heterotelechelic polydiene block polymer with glycidyl ether functionality and another functionality which does not react significantly with an aliphatic polyamine at ambient temperature and selected from the group consisting of olefinic unsaturation and epoxidized olefin; and
- (b) a dual curing system comprising an aliphatic polyamine which cures the glycidyl ether groups of the telechelic and heterotelechelic polymers at ambient temperature and a curing agent that cures the other functionality on the heterotelechelic polydiene block polymer upon baking at higher temperature, wherein when the other functionality is olefinic unsaturation, the curing agent is sulfur or a sulfur-containing compound or when the other functionality is epoxidized olefin, the curing agent is an amino resin.
REFERENCE TO PRIOR APPLICATION
This is a division of application Ser. No. 08/631,759, filed Apr. 12, 1996, now U.S. Pat. No. 5,721,318, which is a division of application Ser. No. 08/519,885, filed Aug. 28, 1995, now U.S. Pat. No. 5,576,388, which is a continuation-in-part of application Ser. No. 08/320,808, filed Oct. 11, 1994, which is now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0396780 A1 |
Nov 1989 |
EPX |
0441485 A2 |
Jan 1991 |
EPX |
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Sep 1987 |
JPX |
1-22094 |
Jan 1989 |
JPX |
4-153252 |
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JPX |
Non-Patent Literature Citations (3)
Entry |
"Vinyl Ethers: Versatile Monomers for Coatings Applications," W. J. Burlant, J. S. Plotkin, F. J. Vara, International Specialty Products, RadTech Asia '91, Osaka, Japan, Apr. 1991. |
Derwent Accession No. 76-87324X/37 for French Patent No. 2,297,863, Sep. 17, 1976, Agence Nat. Valorisation. |
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Divisions (2)
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Number |
Date |
Country |
Parent |
631759 |
Apr 1996 |
|
Parent |
519885 |
Aug 1995 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
320808 |
Oct 1994 |
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