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US 5,854,406 AGranted
High molecular weight azoamide compound
AssigneeWako Pure Chemical Industries, Ltd.
InventorsTsuneaki Maesawa, Kazuo Shiraki, Nobutaka Shimamura
Life of this patent
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Abstract
An azoamide compound of the formula: ##STR1## wherein R.sup.1 through R.sup.4 are independently an alkyl group; X is an alkylene group; Y is --O-- or --N--; and n is an integer of 2 or more, is effective for producing a macroazo compound, which is a useful initiator for producing block copolymers.
Claims8
An azoamide compound represented by the following formula:
- ##STR15## wherein R.sup.1 to R.sup.4 are independently an alkyl group;
- X is an alkylene group;
- Y is O or NH provided that a plurality of Y is the same or different;
- and n is an integer of 2 or more.
1 more element
Dependencies are inferred from the claim text.