Following is a CAS database record representing a highly cited patent family.
CAS indexed 269 chemical substances from this document.
CAS subject entries for this document include: Rare earth compounds; Caps; Roofing; and 30 additional concepts. |
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CAPLUS COPYRIGHT 2001 ACS
| TITLE:
| .alpha.-Diimine-transition metal complexes, their preparation and use as catalysts for (co)polymerization of (fluoro)olefins and olefinic esters |
| INVENTOR(S):
| Johnson, Lynda Kaye; Killian, Christopher Moore; Arthur, Samuel David; Feldman, Jerald; Mccord, Elizabeth Forrester; Mclain, Stephan James; Kreutzer, Kristina Ann; Bennett, Margaret Anne; Coughlin, Edward Bryan; et al. |
| PATENT ASSIGNEE(S):
| E.I. Du Pont De Nemours and Company, USA; University of North Carolina At Chapel Hill |
| SOURCE:
| PCT Int. Appl., 502 pp. CODEN: PIXXD2 |
| LANGUAGE:
| English |
PATENT INFORMATION: PATENT NO. KIND DATE APPLICATION NO. DATE
--------------- ---- -------- --------------- --------
WO 9623010 A2 19960801 WO 1996-US1282 19960124
WO 9623010 A3 19961205
W: AL, AM, AU, BB, BG, BR, CA, CN, CZ, EE, FI, GE, HU, IS, JP, KP,
KR, LK, LR, LT, LV, MD, MG, MK, MN, MX, NO, NZ, PL, RO, SG, SI,
SK, TR, TT, UA, UZ, VN, AZ, BY, KG, KZ, RU, TJ, TM
RW: KE, LS, MW, SD, SZ, UG, AT, BE, CH, DE, DK, ES, FR, GB, GR, IE,
IT, LU, MC, NL, PT, SE, BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG
CA 2211108 AA 19960801 CA 1996-2211108 19960124
AU 9650208 A1 19960814 AU 1996-50208 19960124
AU 729324 B2 20010201
EP 805826 A2 19971112 EP 1996-907020 19960124
R: AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, LU, NL, SE, PT, IE
BR 9607485 A 19971223 BR 1996-7485 19960124
CN 1181089 A 19980506 CN 1996-192646 19960124
JP 10513489 T2 19981222 JP 1996-523064 19960124
NO 9703310 A 19970923 NO 1997-3310 19970717
FI 9703096 A 19970923 FI 1997-3096 19970723
ABSTRACT:
Ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers are polymd. using selected transition metal compds. as catalysts, and sometimes other co-catalysts. Since some of the polymns. exhibit some characteristics of living polymns., block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using, as a catalyst system, a combination of a Ni compd. having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.-diimine Ni complexes with ethylene. For example, polymn. of ethylene for 1 h at 414 kPa and 28-31.degree. in the presence of .alpha.-diimine Ni complex I (prepn. from corresponding .alpha.-diimine and MeOCH2CH2OMe.cntdot.NiBr2 given) and Me aluminoxane gave a cryst., linear polymer m. 127.degree. and having intrinsic viscosity (C6H3Cl3, 135.degree.) 1.925 dL/g.
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