EP 0910600 A1 19990428 - FLEXIBILIZED EPOXY RESINS
Title (en)
FLEXIBILIZED EPOXY RESINS
Title (de)
FLEXIBILISIERTE EPOXIDHARZE
Title (fr)
RESINES EPOXY FLEXIBILISEES
Publication
Application
Priority
- GB 9614436 A 19960710
- US 9711938 W 19970707
Abstract (en)
[origin: WO9801495A1] Epoxy resin systems having good flexibility and impact resistance are modified to provide improved resistance to solvents. Incorporation of a polyalkyleneoxide segment of a molecular weight less than 500 provides improved chemical resistance without sacrifice of mechanical properties. To achieve this an alkoxylated polyol with low molecular weight is reacted with a polycarboxylic acid anhydride to produce the half ester, which is then used to synthesize the flexibilized epoxy resin by forming adducts with polyglycidyl ethers. The flexibilized epoxy resins as well as the acid functionalized oligooxyalkylenes are claimed.
IPC 1-7
IPC 8 full level
C08G 59/12 (2006.01); C08G 65/32 (2006.01); C08G 65/332 (2006.01); C08L 63/00 (2006.01); C08L 71/02 (2006.01)
CPC (source: EP KR)
C08G 59/12 (2013.01 - EP); C08G 63/91 (2013.01 - KR); C08G 65/32 (2013.01 - EP); C08G 65/3324 (2013.01 - EP); C08L 63/00 (2013.01 - EP); C08L 71/02 (2013.01 - EP)
Citation (search report)
See references of WO 9801495A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9801495 A1 19980115; BR 9710157 A 19990810; CA 2259901 A1 19980115; CO 4820410 A1 19990728; EP 0910600 A1 19990428; GB 9614436 D0 19960904; JP 2000514480 A 20001031; KR 20000067856 A 20001125
DOCDB simple family (application)
US 9711938 W 19970707; BR 9710157 A 19970707; CA 2259901 A 19970707; CO 97038624 A 19970710; EP 97932557 A 19970707; GB 9614436 A 19960710; JP 50534198 A 19970707; KR 19997000090 A 19990108