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US 5,173,542 AGranted
Bistriazene compounds and polymeric compositions crosslinked therewith
AssigneeRaychem Corporation
InventorsAldrich N. K. Lau, Lanchi P. Vo, Frank W. Mercer
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Abstract
Bistriazene compounds such as ##STR1## are useful for crosslinking polymers such as poly(imides), poly(aryl ether ketones), poly(aryl ether sulfones), poly(quinolines), poly(quinoxalines), and nonaromatic fluoropolymers having aliphatic C--H groups. Polymers crosslinked with these bistriazene compounds are useful as interlayer insulators in multilayer integrated circuit articles.
Claims20
A crosslinkable composition comprising
- (a) a polymer selected from the group consisting of poly(mide), poly(aryl ether ketone), poly(aryl ether sulfone), poly(quinoline), poly(quinoxaline), and nonaromatic fluoropolymer having aliphatic C-H groups and
- (b) a bistriazene compound of the formula ##STR30## wherein --R.sub.1, --R.sub.2, --R.sub.3, and --R.sub.4 are independently --H, --C.sub.6 H.sub.5, --C.sub.6 H.sub.4 Y, or C.sub.1 -C.sub.4 alkyl;
- --R.sub.5 -- is --O--, --SO.sub.2 --, ##STR31## --R.sub.6 is --F, --Cl, --Br, --CH.sub.3, or --CF.sub.3 ;
- r is 0, 1, 2, 3, or 4;
- and --Y is halogen, --NO.sub.2, --C.sub.6 H.sub.5, or C.sub.1 -C.sub.4 alkyl;
- the bistriazene compound being present in an amount sufficient to crosslink the polymer.
3 more elements
A method of crosslinking a polymer, comprising the steps of:
- (a) providing a polymer selected from the group consisting of poly(imide), poly(aryl ether ketone), poly(aryl ether sulfone), poly(quinoline), poly(quinoxaline), and nonaromatic fluoropolymer having aliphatic C-H groups;
- (b) forming a composition comprising the polymer and a bistriazene compound of the formula ##STR39## wherein --R.sub.1, --R.sub.2, --R.sub.3, and --R.sub.4 are independently --H, --C.sub.6 H.sub.5, --C.sub.6 H.sub.4 Y, or C.sub.1 -C.sub.4 alkyl;
- --R.sub.5 -- is --O--, --SO.sub.2 --, ##STR40## --R.sub.6 is --F, --Cl, --Br, --CH.sub.3, or --CF.sub.3 ;
- r is 0, 1, 2, 3, or 4;
- and --Y is halogen, --NO.sub.2, --C.sub.6 H.sub.5, or C.sub.1 -C.sub.4 alkyl;
- the bistriazene compound being present in an amount effective to crosslink the polymer;
- and
- (c) heating the composition to a temperature between about 300.degree. and about 450.degree. C. to crosslink the polymer.
5 more elements
Dependencies are inferred from the claim text.