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US 5,670,657 AGranted
(Meth) arcylic ester derivatives
AssigneeShofu Inc.
InventorsKatsunori Kojima, Yoshinori Kadoma, Kunio Ikemura
Life of this patent
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Abstract
A novel compound useful as a precious metal adhesive component is provided which can exhibit high and durable adhesivity with precious metals, such as gold, silver, platinum, and palladium, and alloys thereof. The compound is a (meth)acrylic ester derivative having a disulfide cyclic group which is represented by the general formula I!: ##STR1## in which R.sub.1 represents a hydrogen atom or a methyl group, and R.sub.2 represents a C1-C14 alkylene group which may have a substituent.
Claims5
A (meth)acrylic ester having a disulfide cyclic group represented by formula (I):
- ##STR14## in which R.sub.1 represents a hydrogen atom or methyl group, and R.sub.2 represents a C.sub.3 -C.sub.14 alkylene group unsubstituted or substituted by a member selected from the group consisting of an unsaturated group, an alkyl group, and an alkylene group bonded with phenoxy group.
Dependencies are inferred from the claim text.