← Back to Patent Explorer
EP0032745A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Ether imides and process for producing the same

Assignee: Hitachi Ltd
•
Filing: 1981-01-19
•
Granted: —
•
Expires: 2001-01-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An ether imide of the formula: wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 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 ar- ticies excellent in flexibility and heat resistance.

Inventors

  • 👤 Akio Nishikawa
  • 👤 Masashi Shitara
  • 👤 Susumu Era
  • 👤 Toshiaki Fukushima
  • 👤 Hiroshi Suzuki
  • 👤 Hisashi Kohkame

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 16:48
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; C07D207/452; C07D207/456; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D209/56; C07D209/58; C07D209/72; C07D209/76; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 66 words
An ether imide of the formula: wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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.
Claim 2
Dependent Claim 66 words
An ether imide of the formula: wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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.
Claim 3
Dependent Claim 58 words
An ether imide according to Claim 1, wherein R 1 , R 2 , R 3 and R 4 are hydrogen; R 5 and R 6 are independently a methyl group; and D is a group of the formula in which Z is hydrogen, halogen or a methyl group and n is an integer of 1 to 4.
Claim 4
Dependent Claim 61 words
An ether imide according to Claim 1, wherein R 1 , R 2 , R 3 and R 4 are hydrogen; R 5 and R 6 are independently a trifluoromethyl group and D is a group of the formula -CH = CH-, in which Z is hydrogen, halogen or a methyl group and n is an integer of 1 to 4.
Claim 5
Dependent Claim 68 words
An ether amic acid of the formula: wherein R 1 , R 2 , R 3 , and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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.
Claim 6
Dependent Claim 68 words
An ether amic acid of the formula: wherein R 1 , R 2 , R 3 , and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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.
Claim 7
Dependent Claim 64 words
An ether amic acid according to Claim 4, wherein R1 , R2 , R 3 and R 4 are hydrogen; R 5 and R 6 are independently a methyl group or a trifluoromethyl group; and D is a group of the formula -CH = CH-, in which Z is hydrogen, halogen or a methyl group and n is an integer of 1 to 4.
Claim 8
Dependent Claim 115 words
A process for producing an ether imide of the formula: wherein R 1 , R 21 R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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: wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula: wherein D is as defined above.
Claim 9
Dependent Claim 115 words
A process for producing an ether imide of the formula: wherein R 1 , R 21 R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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: wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula: wherein D is as defined above.
Claim 10
Dependent Claim 92 words
A process according to Claim 6, wherein the reaction is carried out in two steps, the first step of which comprises contacting the diamine with the ethylenically unsaturated dicarboxylic acid anhydride in an organic solvent at a temperature of -10° to +40°C to give an ether amic acid of the formula: wherein R 1 , R 25 R 3 , R 4 , R 5 , R 6 and D are as defined in Claim 6, and the second step of which comprises subjecting the ether amic acid to ring closing dehydration.
Claim 11
Dependent Claim 130 words
A process for producing an ether amic acid of the formula: wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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: wherein R l , R 2 , R 3 , R 4 , R 5 and R 6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula: wherein D is as defined above, in an organic solvent at a temperature of -10° to +40 0 C,
Claim 12
Dependent Claim 130 words
A process for producing an ether amic acid of the formula: wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, a lower alkyl group, a lower alkoxy group, chlorine or bromine; R 5 and R 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: wherein R l , R 2 , R 3 , R 4 , R 5 and R 6 are as defined above, with an ethylenically unsaturated dicarboxylic acid anhydride of the formula: wherein D is as defined above, in an organic solvent at a temperature of -10° to +40 0 C,
Claim 13
Dependent Claim 56 words
A process according to Claim 6 or 8, wherein the diamine is at least one member selected from the group consisting of 2,2-bis[4-(4-aminophenoxy)phenyl]-propane, 2,2-bis[3-methyl-(4-aminophenoxy)phenyl]-propane, 2,2-bis[3-butyl-4-(4-aminophenoxy)phenyl]-propane and 2,2-bis[3-ethyl-4-(4-aminophenoxy)phenyl]-propane and the bivalent ethylenically unsaturated dicarboxylic acid anhydride is at least one member selected from the group consisting of maleic anhydride, endomethylenetetrahydrophthalic anhydride, methylen- domethylenetetrahydrophthalic anhydride and tetrahydrophthalic anhydride.
Claim 14
Dependent Claim 15 words
A composition comprising an ether imide of Claim 1 and one or more epoxy compounds.
Claim 15
Dependent Claim 15 words
A composition comprising an ether imide of Claim 1 and one or more unsaturated polyesters.
Claim 16
Dependent Claim 14 words
A composition comprising an ether imide of Claim 1 and one or more amines.
Claim 17
Dependent Claim 14 words
A composition according to Claim 12, wherein the amine is at least one diamine.
Claim 18
Dependent Claim 15 words
A composition comprising an ether imide of Claim 1 and one or more phenolic resins.
Claim 19
Dependent Claim 16 words
A composition comprising an ether imide of Claim 1 and triallyl cyanurate or triallyl cyanurate prepolymer.
Claim 20
Dependent Claim 18 words
A cured resin obtained by heating the composition of Claim 10 at a temperature of 100° to 300°C.
Claim 21
Dependent Claim 18 words
A cured resin obtained by heating the composition of Claim 11 at a temperature of 100° to 300°C.
Claim 22
Dependent Claim 18 words
A cured resin obtained by heating the composition of Claim 12 at a temperature of 100° to 300°C,
Claim 23
Dependent Claim 18 words
A cured resin obtained by heating the composition of Claim 15 at a temperature of 100° to 300°C.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag