EP 1401957 A1 20040331 - POLYMER MIXTURE HAVING IMPROVED RHEOLOGICAL PROPERTIES AND IMPROVED SHRINKING BEHAVIOUR

Title (en)

POLYMER MIXTURE HAVING IMPROVED RHEOLOGICAL PROPERTIES AND IMPROVED SHRINKING BEHAVIOUR

Title (de)

POLYMERMISCHUNG MIT VERBESSERTEN RHEOLOGISCHEN EIGENSCHAFTEN SOWIE VERBESSERTEM SCHRUMPFVERHALTEN

Title (fr)

MELANGE POLYMERE PRESENTANT DES PROPRIETES RHEOLOGIOQUES AMELIOREES ET UNE MEILLEURE RETRACTILITE

Publication

EP 1401957 A1 20040331 (DE)

Application

EP 02762285 A 20020614

Priority

DE 10129522 A 20010621
EP 0206548 W 20020614

Abstract (en)

[origin: WO03000796A1] The invention relates to a thermoplastic polymer mixture containing m, m representing a natural number higher than 1, polymers Pn wherein n represents a natural number between 1 and m, and at least one recurring functional group contained in the Pn polymer chain, said group(s) having the structure -(R<1>)x-C(O)-(R<2>)y- wherein x and y independently represent 0 or 1, and x + y = 1, and R<1>, R<2> independently represent oxygen or nitrogen linked into the main polymer chain. The polymers Pn differ in terms of at least one characteristic related to molecular weight. The polymer mixture has a number average molecular weight Mn(P)1, a weight average molecular weight Mw(P)1, a Z average molecular weight Mz(P)1, a heterogeneity index Mw(P)1/Mn(P)1 and a molecular weight Mp(P)1 defined according to DIN 55672-2 in hexafluoroisopropanol as an elution agent. After maintaining the polymer mixture at the melting point of the same, defined according to ISO 11357-1 and 11357-3, for five minutes, the polymer mixture has a number average molecular weight Mn(P)2, a weight average molecular weight Mw(P)2, a Z average molecular weight Mz(P)2, a heterogeneity index Mw(P)2/Mn(P)2, and a molecular weight Mp(P)2 defined according to DIN 55672-2 in hexafluoroisopropanol as an elution agent. The values Mn(P)2, Mw(P)2, Mz(P)2, Mw(P)2/Mn(P)2 and Mp(P)2 lie within the triple replication standard deviation sigma (r) in relation to Mn(P)1, Mw(P)1, Mz(P)1, Mw(P)1/Mn(P)1 and Mp(P)1 according to DIN 55672-2 in hexafluoroisopropanol as an elution agent.

IPC 1-7

C08L 67/02; C08L 77/00; C08L 101/12

IPC 8 full level

C08L 67/00 (2006.01); C08L 67/02 (2006.01); C08L 77/00 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01); C08L 77/12 (2006.01); C08L 101/02 (2006.01)

CPC (source: EP KR US)

C08L 67/02 (2013.01 - EP US); C08L 77/00 (2013.01 - EP US); C08L 77/02 (2013.01 - EP US); C08L 77/06 (2013.01 - EP US); C08L 77/10 (2013.01 - KR); C08L 77/12 (2013.01 - EP US); C08L 101/02 (2013.01 - EP US)

C-Set (source: EP US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 03000796 A1 20030103; AR 034496 A1 20040225; BG 108522 A 20041230; BR 0210567 A 20040608; CA 2449895 A1 20030103; CN 1525995 A 20040901; CZ 20033514 A3 20040512; DE 10129522 A1 20030109; EP 1401957 A1 20040331; HU P0401480 A2 20041028; HU P0401480 A3 20060328; IL 159074 A0 20040512; JP 2004530771 A 20041007; KR 20040010760 A 20040131; MX PA03011232 A 20040226; PL 367818 A1 20050307; SK 15472003 A3 20040406; US 2004192855 A1 20040930; ZA 200400401 B 20050330

DOCDB simple family (application)

EP 0206548 W 20020614; AR P020102248 A 20020614; BG 10852204 A 20040112; BR 0210567 A 20020614; CA 2449895 A 20020614; CN 02812213 A 20020614; CZ 20033514 A 20020614; DE 10129522 A 20010621; EP 02762285 A 20020614; HU P0401480 A 20020614; IL 15907402 A 20020614; JP 2003507192 A 20020614; KR 20037016673 A 20031219; MX PA03011232 A 20020614; PL 36781802 A 20020614; SK 15472003 A 20020614; US 48019503 A 20031210; ZA 200400401 A 20040120