Thermosetting resin composition having rubbery polymer particle dispersed therein, and process for production thereof
US8217098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermosetting resin composition having rubbery polymer particles dispersed therein of the present invention, that does not precipitate the thermosetting resin rubbery polymer particles over a long period of time, has excellent fluidity, is easily cured and molded, and sufficiently exhibits original properties of the thermosetting resin, comprises 100 parts by weight of a thermosetting resin, and 1 to 80 parts by weight of rubbery polymer particles, the rubbery polymer particles being dispersed in the form of a primary particle, wherein the solid content concentration is 60% to 90% by weight, and the water concentration is 3% by weight or less, and can efficiently be produced industrially in the state that the rubbery polymer particles are maintained in a stable state. The composition can be produced by a process for production of a thermosetting resin composition having rubbery polymer particles dispersed therein of the present invention, comprising a concentration step of deaerating a gas phase adjacent to a mixed solution comprising the rubbery polymer particles, the thermosetting resin, water and an organic solvent to reduce the pressure therein, thereby reducing the amounts o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.