Patent EP0166275A2 successfully refreshed from Google Patents.
EP0166275A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Resin composition for molding material
Assignee: DIC Corp
•
Filing: 1985-06-04
•
Granted: —
•
Expires: 2005-06-04
Abstract
Abstract A resin composition for a molding material is provided which comprises a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom. The amine compound is contained in such a proportion that the amount of its hydrogen atoms directly bonded to the nitrogen atom is 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.
Inventors
- 👤 Mamoru Kameda
- 👤 Masaru Furukawa
- 👤 Nobuhiko Yamauchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 03:17
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B27/00; B32B27/04; B32B5/02; B32B5/022; B32B5/024; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/244; C08J5/249; C08L; C08L61/00; C08L61/04; C08L61/06; C08L63/00; B32B2260/00; B32B2260/02; B32B2260/021; B32B2305/00; B32B2305/07; B32B2305/076; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
62 words
A resin composition for a molding material, said composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.
Claim 2
Dependent Claim
62 words
A resin composition for a molding material, said composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.
Claim 3
Dependent Claim
29 words
The composition of claim 1 which comprises 20 to 90 parts by weight of the resol-type phenolic resin and 80 to 10 parts by weight of the epoxy resin.
Claim 4
Dependent Claim
22 words
The composition of claim 1 wherein the resol-type phenolic resin contains 0.5 to 2.0 moles of hydroxymethylene groups per mole of phenol.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein the epoxy resin has an epoxy equivalent of 80 to 800.
Claim 6
Dependent Claim
21 words
The composition of claim 1 wherein the amine compound has 3 to 5 hydrogen atoms directly bonded to the nitrogen atom.
Claim 7
Dependent Claim
67 words
A molding material composed of a resin composition and reinforcing fibers, said resin composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.
Claim 8
Dependent Claim
67 words
A molding material composed of a resin composition and reinforcing fibers, said resin composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.
Claim 9
Dependent Claim
33 words
The molding material of claim 6 wherein the resin compositions comprises 20 to 90 parts by weight of the resol-type phenolic resin and 80 to 10 parts by weight of the epoxy resin.
Claim 10
Dependent Claim
18 words
The molding material of claim 6 which contains 30 to 90 % by weight of the reinforcing fibers.
Claim 11
Dependent Claim
18 words
The molding material of claim 6 wherein the reinforcing fibers are carbon fibers, aramide fibers or glass fibers.
Claim 12
Independent Claim
84 words
A method for producing a molding material in the form of a prepreg, which comprises impregnating reinforcing fibers with a resin composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin; and then converting the resin to a B-stage resin.
Claim 13
Independent Claim
84 words
A method for producing a molding material in the form of a prepreg, which comprises impregnating reinforcing fibers with a resin composition comprising a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom, said amine compound being contained in such a proportion that the amount of its hydrogen atoms corresponds to 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin; and then converting the resin to a B-stage resin.
Claim 14
Dependent Claim
15 words
ll. The method of claim 10 wherein the amine compound is diaminodiphenylsulfone, dicyandiamide or diaminodiphenylmethane.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.