To provide a resin composition which can be recycled as a raw material for thermosetting resins.
This resin composition is characterized by being obtained by dehydration-condensing a cross-linking agent-acid copolymer, such as styrene-fumaric acid copolymer, with an unsaturated monohydric alcohol. The cross-linking agent-acid copolymer is obtained by hydrolyzing a plastic, such as an unsaturated polyester resin, obtained by cross-linking a polyhydric alcohol-unsaturated polybasic acid copolymer with a cross-linking agent in subcritical water. Alternatively, the resin composition is characterized by being obtained by alternately dehydration-condensing the above-mentioned copolymer with a polyhydric alcohol and a polybasic carboxylic acid and finally condensing the product with a monobasic carboxylic acid or a monohydric alcohol, wherein at least one of the alcohol and the acid has an unsaturated group.
NAKAGAWA NAOHARU
TOBU TOYOYUKI
MAEKAWA TETSUYA
INT CT ENVIRONMENTAL TECH TFR
JPS4917665B1 | 1974-05-02 | |||
JPS62121747A | 1987-06-03 | |||
JP2004155964A | 2004-06-03 | |||
JPS4426112B1 |
Nakamura Tomoyuki
Masakazu Ito