turopaiscnes r a t e n t a m t
European Patent Office
@ Publication number:
Office europeen des brevets
(13)
EUROPEAN
0
045
976
A3
PATENT APPLICATION
Qj) Application number: 81106300.7
© Int. CI.3: C 08 F 1 0 / 0 0
C 08 F 4/64, C 08 F 4 / 0 2
@ Date of filing: 13.08.81
(ai) Priority: 13.08.80 IT 2414180
@ Inventor: Nocci, Roberto
170, corso XXIII Marzo
Novara(rr)
(«) Date of publication of application:
17.02.82 Bulletin 82/7
@ Date of deferred publication of search report: 10.03.82
© Inventor: Giannini, Umberto, Dr.
53, via Sismondi
Milano(IT)
@ Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE
Inventor: Barbe, Pier Camillo, Dr.
3, via Pavone
Ferrara(fT)
@ Applicant: Montedison S.p.A.
31, Foro Buonaparte
1-20121 MilantlT)
© Inventor: Scata, Umberto
31, via C. Battisti
Ferrara(IT)
@ Inventor: Parodi, Sandro
4, via dei Negri Oleggio
Novara(tT)
5) Representative: Zumstein, Fritz, Dr. Dr. F. Zumstein
sen. Dr. E. Assmann et al.
Dr. R. Koenigsberger Dr. F. Zumstein jun. Dipl.-lng. F.
Klingseisen Brauhausstrasse 4
D-8000Munchen2(DE)
\!*) Components and catalysts for the polymerization of olefins.
@ Catalysts for the polymerization of alpha-olefins which
comprise the reaction product of:
a) an Al-alkyl compound;
b) a silicon compound containing at least a Si-OR or
Si-OCOR or Si-NR2 bond, R being a hydrocarbyl
radical;
c) a solid comprising as essential support, a Mg dihalide in
active form and supported therein a Ti halide or a
halo-Ti-alcoholate and a particular type of electron
donor compound.
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European Patent
Office
EUROPEAN SEARCH REPORT
DOCUMENTS CONSIDERED TO BE RELEVANT
Icategory
utation oi document with indication, where appropriate, of relevant
passages
Relevant
to claim
CHEMICAL ABSTRACTS, v o l .
84, n o .
6, 9 t h F e b r u a r y
1976, page
18;
abstract
31747n
Columbus,
O h i o , US
1-3,
5-7
& JP TANIUM
A CO)
* Abstract
GB - A LEUM)
75 103 495 (TOHO
(15-08-1975)
A -
1 539
900
(BRITISH
1 452
314
PETR0PETRO-
page
10
6300
CLASSIFICATION OFTHE
APPLICATION (Int CI.3)
C 08
F
10/00
4/64
4/02
page
2 040
1-7
2,
1-7
2, l i n e s
DE - A - 3 002 879 (MITSUI T 0 A T S U I
* Claims
11 1 - 9 ; p a g e 6, l i n e
18 *
page 7, l i n e
A -
81
TI-
(MITSUI )
* Claims
1-3,5-14;
124-128 *
& GB -
EP
*
* Claims
1-3,5,9,15-23;
lines
116-128 *
2-9,
GB -
Application number
TECHNICAL FIELDS
SEARCHED (Int. CI.3)
C 08 F
10/0010/14
110/00110/14
210/00210/18
4/64
4/62
4/02
1-7
967
CATEGORY OF
CITED DOCUMENTS
<: particularly relevant
\: technological background
3: non-written disclosure
3: intermediate document
\: theory or principle underlying
the invention
E: conflicting application
y. document cited in the
application
.: citation for other reasons
'
3lace of search
The
The present search report has been drawn up for all claims
Hague
:PU form 1&U3.1 06.78
Date of completion of the search
30-11-1981
Examiner
i: member of the same patent
family,
corresponding document
WEBER