公开(公告)号：ES2219566T3

公开(公告)日：2004-12-01

申请号：ES01976133

申请日：2001-08-22

Applicant: BASELL POLIOLEFINE SPA

Inventor： BIDELL WOLFGANG ,  LUTZ GERALD ,  LANGHAUSER FRANZ ,  SCHERER GUNTER ,  MECKELNBURG DIRK ,  OELZE JURGEN

IPC: B01J8/00 ,  B01J8/24 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  G01F23/288

Abstract: Procedimiento para la medición del nivel de llenado de un reactor en procesos de polimerización efectuados en continuo, en el que se mide la correspondiente superficie límite entre fases dentro del reactor mediante una radiación ionizante, caracterizado porque se introduce por lo menos una unidad de medición, compuesta por un foco de radiación que emite radiación ionizante y el detector correspondiente, en la superficie límite entre fases dentro del reactor y se fija en esta posición de forma flexible y la medición de nivel de llenado del reactor se realiza de modo que se determina la superficie límite entre fases mediante la medición del retorno de la difusión radiactiva.

公开(公告)号：AR037790A1

公开(公告)日：2004-12-01

申请号：ARP020104798

申请日：2002-12-11

Applicant: BASELL POLIOLEFINE SPA

Inventor： CHICOTE CARRION EDUARDO ,  GIL ALBERTO ,  DOLLE VOLKER ,  KLASSEN HORST ,  KAGERBAUER KARL-HEINZ ,  COLLINA GIANNI ,  FUSCO OFELIA

IPC: C08F4/654 ,  C08F4/642 ,  C08F4/643 ,  C08F4/649 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06

Abstract: Procedimientos para la polimerización de olefinas CH2=CHR, donde R es hidrógeno o un radical hidrocarburo C1-12, realizado en presencia de un componente catalizador (A) que comprende Mg, Ti y halógeno como elementos esenciales y de un componente catalizador (B) capaz de producir, bajo las mismas condiciones de polimerización, un polímero con un tamano promedio de partículas menor que el que puede obtenerse con dicho componente catalizador A. Dicho procedimiento provee polímeros con mayor densidad volumétrica.

公开(公告)号：AT280188T

公开(公告)日：2004-11-15

申请号：AT00983438

申请日：2000-12-20

Applicant: BASELL POLIOLEFINE SPA

Inventor： EVAIN ERIC J ,  STEWART COSTANTINE A

IPC: C07F7/18 ,  C08F4/16 ,  C08F4/64 ,  C08F4/654 ,  C08F4/658 ,  C08F10/00 ,  C08F297/08

Abstract: Aromatic silane compounds containing at least an aromatic ring bound directly to the silicon atom, wherein the aromatic ring has at least one substituent located in the ortho position selected from C 1-10 hydrocarbon groups, are useful as electron donors in olefin polymerization catalysts for the production of polyolefins having a stereoblock content of from about 7 to about 25%.

公开(公告)号：AR037444A1

公开(公告)日：2004-11-10

申请号：ARP020104550

申请日：2002-11-27

Applicant: BASELL POLIOLEFINE SPA

Inventor： PELLICONI ANTEO ,  LONARDO ANGELO ,  MEI GABRIELE

IPC: C08L23/16 ,  C08F8/50 ,  C08F297/00 ,  C08L23/10 ,  C08L23/14

Abstract: Una composición de polímero de propileno que tiene un valor de índice de flujo fundido (MFR) comprendido entre 3 y 30 g/10 minutos, que comprende (en porcentaje en peso): A) entre 50% y 90% de uno o más copolímero(s) de propileno que tienen un contenido de una parte insoluble en xileno a temperatura ambiente de no menos del 85%, seleccionados entre el grupo que consiste en copolímeros aleatorios de propileno-etileno que contienen entre 1% y 7% de etileno; copolímeros de propileno C4-8 alfa-olefina que contienen entre 2% y 10% de las C4-8 alfa -olefinas; y copolímeros de propileno-etileno C4-8 alfa-olefina que contienen entre 0,5% y 5% de etileno y entre 2% y 6% de C4-8 alfa-olefinas; y B) entre 10% y 50% de un copolímero de propileno que contiene entre 8% y 40 % de etileno y opcionalmente, entre 1% y 10% de una C4-8 alfa-olefina; donde dicho valor MFR (MFR (2)) se obtiene sometiendo a degradación una composición precursora que comprende los mismos componentes A) y B) en las proporciones anteriormente mencionadas, pero que tiene el valor MFR (MFR (1)) entre 0,1 y 5g/10minutos con una relación entre MFR (2) y MFR (1) de 1,5 a 20.

公开(公告)号：DE69730807D1

公开(公告)日：2004-10-28

申请号：DE69730807

申请日：1997-04-29

Applicant: BASELL POLIOLEFINE SPA

Inventor： MECHELAERE MARTINE ,  NICKLES RALF

IPC: B32B27/32 ,  C08J5/18 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16

Abstract: Polyolefin compositions comprising: (A) 20 - 50 wt.% low density polyethylene (LDPE), high density polyethylene (HDPE) or ethylene-vinyl acetate copolymer (EVA) having melt flow rate (MFR) above 0.3 g/10 min.; (B) 50 - 80 wt.% random copolymer (B1) of propylene with 7 - 40 wt.% 4 - 8C alpha-olefin and optionally 0.5 - 6 wt.% ethylene, and optionally a random copolymer (B2) of propylene with up to 10 wt.% ethylene and/or 1 - 6 wt.% 4 - 8C alpha-olefin and/or a propylene homopolymer, (B1) comprising at least 20 wt.% of (B); and (C) 0 - 20 wt.% elastomeric or elastomeric thermoplastic olefin polymer. Also claimed are (1) Polyolefin compositions comprising: (A) as above; (B) 30 - 79 wt.% random copolymer (B2) of propylene with up to 10 wt.% ethylene and optionally 1 - 6 wt.% 4 - 8C alpha-olefin, and optionally a propylene homopolymer, (B2) comprising at least 20 wt.% of (B); and (C) 1 - 30 wt.% elastomeric or elastomeric thermoplastic olefin polymer, provided that, when it is a copolymer of propylene with a 4 - 8C alpha-olefin and optionally 0.5 - 6 wt.% ethylene, it contains more than 40 wt.% 4 - 8C alpha-olefin. (2) Multilayer film for packaging comprising sealing layer(s) composed of or comprising a polyolefin composition as above and support layer(s) composed of or comprising a polymeric material.

公开(公告)号：AT276290T

公开(公告)日：2004-10-15

申请号：AT99103297

申请日：1999-02-19

Applicant: BASELL POLIOLEFINE SPA

Inventor： SYED ABUZAR

IPC: C08F2/44 ,  C08F6/00 ,  C08F255/02 ,  C08F255/04 ,  C08F255/08 ,  C08L51/06

Abstract: The thermal stability of alpha-substituted acrylate graft copolymers can be improved by (a) making a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto monomers comprising (i) a 1-3 C alkyl-substituted acrylic acid and (ii) an ester of a 1-3 C alkyl-substituted acrylic acid, wherein the total amount of polymerized monomers is about 20 to about 240 parts per hundred parts of the propylene polymer material and the amount of (i) is about 1 to about 20%, based on the total weight of monomers, and (b) removing any unreacted grafting monomer from the resulting grafted propylene polymer material, decomposing any unreacted initiator, and deactivating any residual free radicals in the material.

公开(公告)号：DE69919834D1

公开(公告)日：2004-10-07

申请号：DE69919834

申请日：1999-07-29

Applicant: BASELL POLIOLEFINE SPA

Inventor： NGUYEN N ,  PHILLIPS A

IPC: B65D65/02 ,  B29C55/02 ,  B29K23/00 ,  B29L7/00 ,  C08J5/18 ,  C08L23/10 ,  C08L23/12

Abstract: Disclosed is a polypropylene composition useful for making solid state oriented film. The composition comprises two predominantly isotactic polypropylenes with the melting point temperature of one of the polypropylenes being substantially lower than the melting point temperature of the other. In one embodiment of the composition the higher melting point polypropylene is made by Ziegler-Natta catalysis, while the lower melting point polypropylene is made by metallocene catalysis. Compared to polypropylene with similar melt flow rate and made by Ziegler-Natta catalysis, and solid state oriented film thereof, the composition provides a better balance of elevated temperature draw characteristics and physical properties of oriented film made therefrom. Thus, at the same or lower elevated temperature yield stress, oriented film of the composition exhibits improved properties such as stiffness, elongation-at-break, dimensional stability, and oxygen barrier. Also disclosed is a method for the manufacture of oriented, flexible packaging film. In the method a cast sheet is melt extruded from the composition, and, after cooling until it is solid, the cast sheet is stretched to the desired extent of orientation at a temperature which the sheet does not break while being stretched, but below the Tm of the composition. The resulting film then is cooled to at least the crystallization temperature of the lower melting point polypropylene.

公开(公告)号：BR0305246A

公开(公告)日：2004-09-21

申请号：BR0305246

申请日：2003-06-11

Applicant: BASELL POLIOLEFINE SPA

Inventor： PELLICONI ANTEO ,  ANGELINI ANTONELLA ,  SGARZI PAOLA

IPC: B29C45/00 ,  C08F210/00 ,  C08L23/08 ,  C08L23/10

Abstract: Polyolefin compositions comprising (percent by weight): 1) 55-80% of a crystalline propylene homopolymer or copolymer containing up to 15% of ethylene and/or C4-C10 α-olefin(s) and having an MFR value of at least 15 g/10 min, and 2) 2) 20-45 wt % of a copolymer of ethylene with one or more C4-C10 α-olefin(s) containing from 10 to 4 wt % of said C4-C10 α-olefin(s). The said compositions have values of MFR equal to or higher than 15 g/10 min, a total content of ethylene of 20% or more, a total content of C4-C10 α-olefin(s) of 4.5% or more, a ratio of the total content of ethylene to the total content of C4-C10 α-olefin(s) of 2.3 or more, and an intrinsic viscosity value of the fraction soluble in xylene at room temperature of 1.7 dl/g or less.

公开(公告)号：DE60104509D1

公开(公告)日：2004-09-02

申请号：DE60104509

申请日：2001-05-18

Applicant: BASELL POLIOLEFINE SPA

Inventor： PELLICONI ANTEO ,  HUOVINEN HELENA ,  DI DIEGO MARIA

IPC: B65D1/00 ,  B29C49/04 ,  B29K23/00 ,  B29L22/00 ,  C08F297/08 ,  C08J5/00 ,  C08L23/10 ,  C08L23/16

Abstract: Propylene polymer compositions comprising (percent by weight): A) from 70 to 90% of a random copolymer of propylene with ethylene, containing from 1 to 6% of ethylene, having a content of fraction insoluble in xylene at room temperature (about 23° C.) of not less than 93%; B) from 10% to 30% of a copolymer of propylene with ethylene, containing from 8 to 18% of ethylene; wherein the ratio (B)/C2B of the percent by weight of (B), with respect to the total weight of (A) and (B), to the percent by weight of ethylene in (B), with respect to the total weight of (B), represented in the above formula by C2, is 2.5 or lower.

公开(公告)号：DE60104238D1

公开(公告)日：2004-08-19

申请号：DE60104238

申请日：2001-01-25

Applicant: BASELL POLIOLEFINE SPA

Inventor： MORINI GIAMPIERO ,  BALBONTIN GIULIO ,  KLUSENER A

IPC: C08F4/645 ,  C08F4/651 ,  C08F4/654 ,  C08F10/00

Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2=CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.