Abstract: The present invention relates to a method for decomposing a thermosetting resin to provide decomposed products, which can be easily separated, efficiently collected and recycled.

Abstract: The present invention relates to a modified styrene-maleic acid copolymer obtained by reacting a carboxylic acid group in a styrene-maleic acid copolymer with a halogen and/or epoxy compound. The modified styrene-maleic acid copolymer is useful as a low profile additive for a thermosetting resin, a water-absorbing material, etc.

Abstract: The present invent-on relates to a modified styrene-maleic acid copolymer obtained by reacting a carboxylic acid group in a styrene-maleic acid copolymer with a halogen and/or epoxy compound. The modified styrene-maleic acid copolymer is useful as a low profile additive for a thermosetting resin, a water-absorbing material, etc.

Abstract: An objective of the present invention is to provide a desolvation method for removing a solvent efficiently from a polymer solution. In the present desolvation method where the solvent is removed from the polymer solution by steam stripping using an apparatus comprising a pipe which connects a gas phase portion of a desolvation tank at the downstream and a liquid phase portion of a desolvation tank at the upstream, and an opening-degree adjusting mean (for example, pressure adjusting valve) fixed to this pipe, pressures are controlled such that a pressure difference (?P=P2?P1) between pressures of each gas phase portion of desolvation tanks at the downstream and at the upstream is allowed to be larger by from 0.005 to 0.6 MPa, preferably from 0.05 to 0.3 MPa than a pressure difference when the opening-degree adjusting mean is fully opened.