Expoxide flexibilizers based on polylactone adducts

Details Expoxide flexibilizers based on polylactone adducts Expoxide flexibilizers based on polylactone adducts

1991-03-28

1992-07-21

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

549562, 528 91, 528103, 528110, 528111, 528354, 156330, 427386, C08G 5912

Patent

active

051323745

ABSTRACT:
Adducts of the formula I ##STR1## are described in which R.sup.1 is an e-valent aliphatic radical after the removal of the functional groups, X is --O--or --NH--, R.sup.2 is a d+l-valent carbocyclic-aromatic radical, R.sup.3 is hydrogen or methyl, R.sup.4 is an aliphatic, aromatic, or araliphatic c+l-valent radical, Y is --O--, --S--or --NR.sup.5 --, R.sup.5 is hydrogen or ##STR2## b is an integer from 2 to 15, b is an integer from 1 to 25, c is 1, 2 or 3, d is 1, 2 or 3 and e is 2, 3 or 4.
The adducts can be combined with latent curing agents and, if appropriate, other epoxy resins to give adhesives having good stability on storage and high flexibility.

REFERENCES:
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patent: 4086293 (1978-04-01), Smith et al.
patent: 4101603 (1978-06-01), Smith et al.
patent: 4261871 (1981-04-01), Smith et al.
patent: 4386191 (1983-05-01), Disalvo et al.
patent: 4521570 (1985-06-01), Watanabe et al.
patent: 4522984 (1985-06-01), Watanabe et al.
patent: 4725653 (1988-02-01), Koleske

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