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1. (WO2017066056) FAST CURE EPOXY COMPOSITION FOR USE IN HIGH THROUGHPUT MANUFACTURING PROCESSES
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/066056 International Application No.: PCT/US2016/055437
Publication Date: 20.04.2017 International Filing Date: 05.10.2016
IPC:
C08G 18/58 (2006.01) ,C08J 5/24 (2006.01) ,C08G 59/00 (2006.01) ,C08G 59/22 (2006.01) ,C08L 63/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
28
characterised by the compounds used containing active hydrogen
40
High-molecular-weight compounds
58
Epoxy resins
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
24
Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
59
Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
59
Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compounds; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
18
Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
20
characterised by the epoxy compounds used
22
Di-epoxy compounds
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
63
Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Applicants:
DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674, US
Inventors:
BANK, David H.; US
BISHOP, Matthew T.; US
PARSONS, Thomas J.; US
MECCA, Jodi M.; US
WU, Huang; US
Agent:
XU, Hong J.; US
Priority Data:
62/240,55613.10.2015US
Title (EN) FAST CURE EPOXY COMPOSITION FOR USE IN HIGH THROUGHPUT MANUFACTURING PROCESSES
(FR) COMPOSITION D'ÉPOXY À DURCISSEMENT RAPIDE DESTINÉE À ÊTRE UTILISÉE DANS DES PROCÉDÉS DE FABRICATION À HAUT RENDEMENT
Abstract:
(EN) An epoxy resin composition having a first epoxy resin component containing an oxazolidone; a second epoxy resin component; a latent hardener comprising dicyandiamide particles having a particle distribution in which at least 35% of the dicyandiamide particles have a particle size of less than 2 microns; and an epoxy soluble latent catalyst is provided. It has been found that the combination of the epoxy components, a latent hardener having dicyandiamide particles in which at least 35% of the dicyandiamide particles have a particle size of less than 2 microns, and an epoxy soluble latent catalyst provides an epoxy resin composition that provides a more homogeneous infusion of the resin into a fibrous material for forming a prepreg. As a result, faster cure of the epoxy resin composition is obtained, which in turn, reduces the mold cycle time for preparing molded articles and parts.
(FR) La présente invention concerne une composition de résine époxyde ayant un premier constituant de résine époxyde contenant une oxazolidone; un deuxième constituant de résine époxyde; un durcisseur latent comprenant des particules de dicyandiamide ayant une distribution de particule dans laquelle au moins 35 % des particules de dicyandiamide ont une taille de particules inférieure à 2 microns; et un catalyseur latent soluble dans les époxy. Il a été découvert que la combinaison des constituants époxy, d'un durcisseur latent ayant des particules de dicyandiamide dans lesquelles au moins 35 % des particules de dicyandiamide ont une taille de particules inférieure à 2 microns, et d'un catalyseur latent soluble dans les époxy procure une composition de résine époxyde qui permet d'obtenir une infusion plus homogène de la résine dans un matériau fibreux pour former un pré-imprégné. En conséquence, un durcissement plus rapide de la composition de résine époxyde est obtenu, ce qui à son tour, réduit le temps de cycle de moule pour la préparation d'articles et de pièces moulés.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)