Global Patent Index - EP 0968235 A1

EP 0968235 A1 2000-01-05 - GRAFTED ETHYLENE COPOLYMERS

Title (en)

GRAFTED ETHYLENE COPOLYMERS

Title (de)

GEPFROPFTE ETHYLENCOPOLYMERE

Title (fr)

COPOLYMERES D'ETHYLENE GREFFES

Publication

EP 0968235 A1 (EN)

Application

EP 98911905 A

Priority

  • US 9805552 W
  • US 82183897 A

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

C08F 255/02; C08F 290/04

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

C08F 290/042 (2013.01); C08F 255/02 (2013.01); C08L 51/06 (2013.01)

C-Set

  1. C08F 255/02 + C08F 220/02
  2. C08F 255/02 + C08F 222/02
  3. C08L 51/06 + C08L 2666/02

Citation (search report)

See references of WO 9842760A1

DCS

DE FR GB IT NL

DOCDB simple family

WO 9842760 A1 19981001; AU 6575398 A 19981020; BR 9808027 A 20000308; EP 0968235 A1 20000105; JP 2001518137 A 20011009; KR 20010005528 A 20010115