Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2005-03-01
2005-03-01
Desai, Rita (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S205000
Reexamination Certificate
active
06861552
ABSTRACT:
The present invention discloses an adamantyl ester monomer composition characterized by containing at least an adamantyl ester monomer having at least one polymerizable unsaturated bond in the molecule, and a compound represented by the following general formula (1):(in the formula, R1is an alkyl group of 1 to 5 carbon atoms, R2is an alkyl group of 1 to 5 carbon atoms, R3is a hydrogen atom or an alkyl group of 1 to 5 carbon atoms, and R4is a hydrogen atom or a methyl group). The composition has high storage stability and, by subjecting it to distillation, an adamantyl ester monomer of high purity can be obtained easily.
REFERENCES:
patent: 3984372 (1976-10-01), Cottman
patent: 3-115385 (1991-05-01), None
patent: 3-121188 (1991-05-01), None
patent: 3-124790 (1991-05-01), None
International Preliminary Search Report for PCT JP01/06207.*
International Preliminary Search Report for PCT/JP01?06207.
Hirota Yoshihiro
Yamaguchi Masao
Yamamoto Hiromasa
Desai Rita
Reyes Hector M.
Tokuyama Corporation
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