EP 0968235 A1 20000105 - GRAFTED ETHYLENE COPOLYMERS
Title (en)
GRAFTED ETHYLENE COPOLYMERS
Title (de)
GEPFROPFTE ETHYLENCOPOLYMERE
Title (fr)
COPOLYMERES D'ETHYLENE GREFFES
Publication
Application
Priority
- US 9805552 W 19980319
- US 82183897 A 19970321
Abstract (en)
[origin: WO9842760A1] This invention relates to a grafted ethylene copolymer comprising ethylene and an alpha-olefin grafted with 0.1 weight % or more of an unsaturated acid or anhydride wherein the copolymer prior to grafting is characterized by: 1) a vinylidene to vinyl end chain unsaturation ratio of 3 or less, and 2) a CDBI of 60 % or more or was produced using one or more mono- or bis- cyclopentadienyl transition metal catalysts in combination with an activator of alumoxane and/or a non-coordinating anion, and the grafted copolymer is characterized by a number of unsaturated acid or anhydride molecules per chain of 2 or more as calculated according to the following formula: [Mn<*> UAA(wt%)]/[UAA(Mw)] wherein Mn is the number average molecular weight as measured by GPC, UAA(wt.%) is the weight percent of the unsaturated acid or anhydride as measured by FTIR spectroscopy and UAA(Mw) is the molecular weight of the unsaturated acid or anhydride.
IPC 1-7
IPC 8 full level
C08F 255/00 (2006.01); C08F 8/46 (2006.01); C08F 255/02 (2006.01); C08F 290/04 (2006.01); C08L 51/06 (2006.01)
CPC (source: EP KR)
C08F 4/65908 (2013.01 - KR); C08F 4/65912 (2013.01 - KR); C08F 4/6592 (2013.01 - KR); C08F 222/06 (2013.01 - KR); C08F 255/02 (2013.01 - EP KR); C08F 290/042 (2013.01 - EP); C08L 51/06 (2013.01 - EP)
Citation (search report)
See references of WO 9842760A1
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9842760 A1 19981001; AU 6575398 A 19981020; BR 9808027 A 20000308; EP 0968235 A1 20000105; JP 2001518137 A 20011009; KR 20010005528 A 20010115
DOCDB simple family (application)
US 9805552 W 19980319; AU 6575398 A 19980319; BR 9808027 A 19980319; EP 98911905 A 19980319; JP 54583998 A 19980319; KR 19997008587 A 19990920