Puwei Liu - San Diego CA, US Stephen M. Dershem - San Diego CA, US Benjamin Neff - San Diego CA, US Maria Villegas - San Diego CA, US
Assignee:
Henkel Corporation - Rocky Hill CT
International Classification:
C07F 7/10 C07F 7/18 C07D 207/24
US Classification:
548406, 556407, 556465, 428355 R
Abstract:
In accordance with the present invention, there are provided novel coupling agents which are compatible with a wide variety of adhesive formulations and which provide substantial adhesion enhancement relative to base formulations to which they are added. Invention compounds comprise at least one free-radically polymerizable group (other than acrylate) and at least one reactive moiety which forms covalent bond(s) with substrates having free hydroxyl groups on the surface thereof. Thus, invention compounds are covalently linked to adhesive formulations upon free radical cure, while at the same time providing “residual” functionality which is capable of undergoing reaction with any substrate having reactive (e. g. , hydroxyl) groups in the surface thereof.
The present invention provides co-curable compositions in which an anionically or cationically reactive component, such as an epoxy or episulfide resin component; a free-radical polymerizable component; and a cross linking component, where the cross linking component is reactive with each of the anionically or cationically reactive component and the free radical polymerizable component through functionalization with at least one group reactive through an anionic or cationic mechanism and at least one group reactive through a free radical mechanism. The invention further provides methods of preparing such compositions, methods of applying such compositions to substrate surfaces, and assemblies prepared therewith for connecting microelectronic circuitry.
Malemide Containing Formulations And Uses Therefor
Frank D. Husson - San Diego CA Benjamin Neff - Chula Vista CA
Assignee:
The Dexter Corporation - Windsor Locks CT
International Classification:
C09K 300
US Classification:
25218311
Abstract:
In accordance with the present invention, there are provided novel compositions based on a defined maleimide moiety. Invention compositions have excellent moisture resistance (and, hence are much less prone to give rise to "popcorning"), excellent handling properties (i. e. , generally existing as a fluid material which does not require the addition of solvent to facilitate the use thereof), and excellent performance properties (e. g. , good dielectric properties).
Maleimide Containing Formulations And Uses Therefor
Frank D. Husson - San Diego CA Benjamin Neff - Chula Vista CA Stephen M. Dershem - San Diego CA
Assignee:
Dexter Corporation - Windsor Locks CT
International Classification:
B32B 2706 B32B 2728 C08F12240 C08F22240
US Classification:
526262
Abstract:
In accordance with the present invention, there are provided novel hydrophobic compositions comprising a defined hydrophobic maleimide moiety and optionally, a hydrophobic cyanate ester moiety. Invention compositions have excellent moisture resistance (and, hence are much less prone to give rise to "popcorning"), excellent handling properties (i. e. , generally existing as a fluid material which does not require the addition of solvent to facilitate the use thereof), and excellent performance properties (e. g. , good dielectric properties).