EP 1084182 A1 20010321 - NUCLEATION OF POLYAMIDES IN THE PRESENCE OF HYPOPHOSPHITE
Title (en)
NUCLEATION OF POLYAMIDES IN THE PRESENCE OF HYPOPHOSPHITE
Title (de)
NUKLEIERUNG VON POLYAMIDEN IN GEGENWART VON HYPOPHOSPHIT
Title (fr)
NUCLEATION DE POLYAMIDES EN PRESENCE D'HYPOPHOSPHITE
Publication
Application
Priority
- US 9911610 W 19990526
- US 8723298 P 19980529
Abstract (en)
[origin: WO9961522A1] The present invention provides polyamide compositions comprising a polyamide, nylon 2,2, and a phosphorous-containing whitening agent having Formula (I), wherein R is hydrogen, an alkyl group with 1 to 6 carbons, a cycloalkyl group with 5 to 6 carbons, or a phenyl or methylphenyl aromatic group, and M is hydrogen or a metal. In a preferred embodiment, the polyamide is nylon 6,6 (polyhexamethylene adipamide) and the phosphorous-containing whitening agent is a hypophosphorous acid or a metal hypophosphite. Sodium hypophosphite is especially preferred. The polyamide compositions of the present invention have improved molding cycle times, and are tough, white and color-stable.
IPC 1-7
IPC 8 full level
C08G 69/00 (2006.01); C08K 3/32 (2006.01); C08K 5/00 (2006.01); C08K 5/51 (2006.01); C08K 5/5313 (2006.01); C08L 77/00 (2006.01); C08L 77/06 (2006.01)
CPC (source: EP KR)
C08K 3/32 (2013.01 - EP KR); C08K 5/0008 (2013.01 - EP KR); C08K 5/51 (2013.01 - EP KR); C08K 5/5313 (2013.01 - EP KR); C08L 77/00 (2013.01 - EP); C08L 77/06 (2013.01 - EP KR); C08L 2205/02 (2013.01 - KR)
Citation (search report)
See references of WO 9961522A1
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9961522 A1 19991202; AU 4206199 A 19991213; BR 9910798 A 20010213; CA 2333404 A1 19991202; CN 1311808 A 20010905; EP 1084182 A1 20010321; JP 2002516371 A 20020604; KR 20010071312 A 20010728; TW 546350 B 20030811
DOCDB simple family (application)
US 9911610 W 19990526; AU 4206199 A 19990526; BR 9910798 A 19990526; CA 2333404 A 19990526; CN 99809196 A 19990526; EP 99925859 A 19990526; JP 2000550918 A 19990526; KR 20007013252 A 20001124; TW 88108914 A 19990726