STYRENIC COPOLYMER AND PRODUCTION THEIR OF

Disclosed is a new styrenic copolymer comprising: (a) repeating styrene units of general formula (I), wherein R represents a hydrogen or halogen atom, or a hydrocarbon group having 20 or less carbon atoms and n is an integer of 1 to 3, provided that R groups may be the same or different from each ot...

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Bibliographic Details
Main Authors KURAMOTO, MASAHIKO, TAZAKI, TOSHINORI
Format Patent
LanguageEnglish
Korean
Published 20.10.1995
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Disclosed is a new styrenic copolymer comprising: (a) repeating styrene units of general formula (I), wherein R represents a hydrogen or halogen atom, or a hydrocarbon group having 20 or less carbon atoms and n is an integer of 1 to 3, provided that R groups may be the same or different from each other when n is 2 or 3, and (b) repeating olefin units of general formula (II), wherein R represents a hydrogen atom or a saturated hydrocarbon group having 20 or less carbon atoms, or (c) repeating diene units, wherein the proportion of the repeating olefin units (b) or diene units (c) is 0.1 to 99.9 % by weight. The copolymer has a limiting viscosity of 0.07 to 20 dl/g as measured in 1,2,4-trichlorobenzene at 135 DEG C and the stereoregularity of the chain of the repeating styrene units is highly syndiotactic. It is excellent in the resistance to heat, chemicals and so forth and capable of low-temperature injection molding. It has also a good compatibility with other resins.
Bibliography:Application Number: KR19900702492