Copolymers of acrylonitrile, styrene, and para-isopropenylphenol
AssigneeWakabayashi Patent Agency
InventorsKenji Ema, Jun Saito, Takatoshi Mitsuishi, Shuhei Ikado
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Abstract
A copolymer consisting of 30 to 65 mole % of structural units of the formula ##STR1## 1 to 55 mole % of structural units of the formula ##STR2## and 10 to 60 mole % of structural units of the formula ##STR3## and having a number average molecular weight of 500 to 200,000.
Claims5
Copolymer consisting of 30 to 65 mole percent of structural units having the formula:
- ##STR7## 5to 45 mole percent of structural units having the formula:
- ##STR8## and 10 to 60 mole percent of structural units having the formula:
- ##STR9## and having a number average molecular weight of 500 to 200,000.
The copolymer as claimed in claim 7 which has a number average molecular weight of 500 to 50,000.
The copolymer consisting of acrylonitrile units, styrene units and para-isopropenylphenol units, the mole percent of para-isopropenylphenol being in the range of 10 to 60 percent based upon the moles of the monomeric components, the minimum mole percent of styrene and acrylonitrile being 5 percent and 30 percent, respectively, based upon the moles of the monomeric compounds, and the number average molecular weight of the copolymer being 500 to 200,000.
Dependencies are inferred from the claim text.