Ether imides and process for producing the same
AssigneeHitachi, Ltd.
InventorsAkio Nishikawa, Masashi Shitara, Susumu Era, Toshiaki Fukushima, Hiroshi Suzuki, Hisashi Kohkame
Life of this patent
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Abstract
An ether imide of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and D are as defined in the specification produced by reacting a diamine with an ethylenically unsaturated dicarboxylic acid can give a composition together with one or more unsaturated polyesters, epoxy compounds, amines, and the like to give shaped articles excellent in flexibility and heat resistance.
Claims13
An ether imide of the formula:
- ##STR9## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine;
- R.sub.5 and R.sub.6 are independently hydrogen, a methyl group, an ethyl group, a trifluoromethyl group or a trichloromethyl group;
- and D is a bivalent organic group having 2 to 24 carbon atoms.
An ether amic acid of the formula:
- ##STR12## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine;
- R.sub.5 and R.sub.6 are independently hydrogen, a methyl group, an ethyl group, a trifluoromethyl group or a trichloromethyl group;
- and D is a bivalent organic group having 2 to 24 carbon atoms.
A process for producing an ether imide of the formula:
- ##STR14## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine;
- R.sub.5 and R.sub.6 are independently hydrogen, a methyl group, an ethyl group, a trifluoromethyl group or a trichloromethyl group;
- and D is a bivalent organic group having 2 to 24 carbon atoms, which comprises reacting a diamine of the formula:
- ##STR15## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula:
- ##STR16## wherein D is as defined above, followed by ring-closing dehydration.
A process for producing an ether amic acid of the formula:
- ##STR18## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine;
- R.sub.5 and R.sub.6 are independently hydrogen, a methyl group, an ethyl group, a trifluoromethyl group or a trichloromethyl group;
- and D is a bivalent organic group having 2 to 24 carbon atoms, which comprises contacting a diamine of the formula:
- ##STR19## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula:
- ##STR20## wherein D is as defined above, in an organic solvent at a temperature of -10.degree. to +40.degree. C.
Dependencies are inferred from the claim text.