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Patent Searching and Data


Title:
【発明の名称】スピロオルソカーボネート化合物
Document Type and Number:
Japanese Patent JPH0680063
Kind Code:
B2
Abstract:
PURPOSE:To obtain the subject new compound, having a small volume change in curing, a low melting point, good in compatibility with general-purpose resins, excellent in operating efficiency, etc., having a higher refractive index than that of conventional transparent resin materials and capable of providing polymers useful as plastic lenses. CONSTITUTION:8,l0,19,20-Tetraoxatrispiro[5.2.2.5.2.2]heneicosane-2,14- diene expressed by formula I (R and R' are bivalent group, expressed by formula II and formed by integrating both R and R'). The compound expressed by formula is obtained by carrying out ester interchange reaction of cyclohexenedimethanol with derivatives of tetramethyl orthocarbonate, 1,4,6,9- tetraoxaspiro[4,4] nonane, etc.

Inventors:
TAGUCHI HIROKANE
KATO HITOSHI
KATO HIROYUKI
Application Number:
JP2714092A
Publication Date:
October 12, 1994
Filing Date:
January 17, 1992
Export Citation:
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Assignee:
TOA GOSEI CHEM IND
International Classes:
C07D493/10; C08F32/00; C08F32/08; C08G65/16; (IPC1-7): C07D493/10
Attorney, Agent or Firm:
Toru Takatsuki