IPC분류정보
국가/구분 |
United States(US) Patent
공개
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0131549
(2012-07-06)
|
공개번호 |
US-0206819
(2014-07-24)
|
우선권정보 |
EP-11173344.0 (2011-07-08) |
국제출원번호 |
PCT/EP2012/063332
(2012-07-06)
|
§371/§102 date |
20140324
(20140324)
|
발명자
/ 주소 |
- Hafner, Norbert
- Resconi, Luigi
- Gahleitner, Markus
- Wang, Jimgbo
- Castro, Pascal
- Kulyabin, Pavel Sergeevich
- Izmer, Vyatcheslav
- Virkkunen, Alexander
- Kononovich, Dmitry
- Virkkunen, Ville
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
0 |
초록
▼
A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic
A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %; the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min; the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %; the heterophasic polypropylene resin has a notched charpy impact strength at −20 C of at least 25 kJ/m2, preferably at least 50 kJ/m2; and wherein the MFR2 (Matrix)/MFR2(XS)≧5, preferably ≧10.
대표청구항
▼
1. A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %;the heterophasi
1. A heterophasic polypropylene resin comprising a polypropylene homopolymer matrix phase (A) and an ethylene-propylene copolymer phase (B) dispersed within the matrix, wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %;the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min;the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %;the heterophasic polypropylene resin has a notched charpy impact strength at −20° C. of at least 25 kJ/m2; and whereinthe MFR2 (XS)/MFR2(matrix)≅5. 2. A heterophasic polypropylene resin comprising a polypropylene homopolymer phase (A) and an ethylene-propylene copolymer phase (B) dispersed within phase (A), wherein the xylene soluble fraction of the heterophasic polypropylene resin is in the range 20 to less than 50 wt %;the heterophasic polypropylene resin has an MFR2 of 0.01 to 50 g/10 min;the ethylene content of the xylene soluble fraction of the heterophasic polypropylene resin is in the range of at least 20 wt % to less than 50 wt %;the MFR2 (xylene insoluble) is 0.2 g/10 min or less; and whereinthe MFR2 (XS)/MFR2 (xylene insoluble)≧5. 3. The heterophasic polypropylene resin of claim 1, wherein the MFR2 (XS)/MFR2(matrix)≧350. 4. The heterophasic polypropylene resin of claim 1, wherein the MFR2 of the heterophasic polypropylene resin is 0.05 to 2 g/10 min. 5. The heterophasic polypropylene resin of claim 1, wherein the BDTT is less than −25° C. 6. The heterophasic polypropylene resin of claim 1, wherein the notched charpy impact strength at −20° C. is at least 90 kJ/m2. 7. The heterophasic polypropylene resin of claim 1, wherein the heterophasic polypropylene resin comprises 25 to 45 wt % XS content. 8. The heterophasic polypropylene resin of claim 1, having a tensile modulus of 50 to 800 MPa. 9. A process for the preparation of the heterophasic polypropylene resin of claim 1 comprising: (I) polymerising propylene only in a first stage; and(II) polymerising at least ethylene and propylene in a second stage;both stages being carried out in the presence of the same asymmetrical metallocene catalysteach independently hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16; 10. The process of claim 9, wherein the asymmetrical metallocene catalyst is a racemic anti isomer. 11. The process of claim 9, wherein the asymmetrical metallocene catalyst is a racemic catalyst comprising (i) a complex of formula whereinM is zirconium or hafnium;each X is a sigma ligand;L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-20-hydrocarbyl, tri(C1-20-alkyl)silyl, C6-20-aryl, C7-20-arylalkyl or C1-20-alkylaryl;R2 and R2′ are each independantly a C1-20 hydrocarbyl radical optionally containing one or more heteroatoms from groups 14-16;R5′ is a C1-20 hydrocarbyl group optionally containing one or ore heteroatoms from groups 14-16 and optionally substituted by one or more halo atoms;R6 and R6′ are each independently hydrogen or a C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16;R′ and R each each independently hydrogen or C1-20 hydrocarbyl group optionally containing one or more heteroatoms from groups 14-16;Ar is independently an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R1;Ar′ is independently an aryl or heteroaryl group having up to 20 carbon atoms optionally substituted by one or more groups R1;each R1 is a C1-20 hydrocarbyl group or two R1 groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered non aromatic ring with the Ar group, said ring being itself optionally substituted with one or more groups R4; andeach R4 is a C1-20 hydrocarbyl group;and (ii) a cocatalyst comprising a compound of a group 13 metal. 12. The process of claim 9 in which R5′ is a C1-20 hydrocarbyl group containing one or more heteroatoms from groups 14-16 and optionally substituted by one or more halo atoms. 13. The process of claim 9 wherein Ar and Ar′ are different. 14. The process of claim 9, wherein the asymmetrical metallocene catalyst is a racemic catalyst comprising (i) a complex of formula (II′) or (II) whereinM is zirconium or hafnium;each X is a sigma ligand;L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-20 alkyl, C3-10 cycloalkyl, tri(C1-20-alkyl(silyl), C6-20-aryl, C7-20 arylalkyl or C7-20 alkylaryl;each R2 or R2′ is a C1-10 alkyl group;R5′ is a C1-10 alkyl group or Z′R3′ group;R6 is hydrogen or a C1-10 alkyl group;R6′ is a C1-10 alkyl group or C6-10 aryl group;R7 is hydrogen, a C1-6 alkyl group or ZR3 group;R7′ is hydrogen or a C1-10 alkyl group;Z and Z′ are independently O or S;R3′ is a C1-10 alkyl group, or a C6-10 aryl group optionally substituted by one or more halo groups;R3 is a C1-10-alkyl group;n is 0 to 4, e.g. 0, 1 or 2;and each R1 is a C1-20 hydrocarbyl group;and (ii) a cocatalyst comprising a compound of a group 13 metal. 15. The process as of claim 9, wherein the asymmetrical metallocene catalyst is a racemic catalyst comprising (i) a complex of formula (III′) or (III): M is zirconium or hafnium;each X is a sigma ligand;L is a divalent bridge selected from —R′2C— or —R′2Si— wherein each R′ is independently a hydrogen atom, C1-20 alkyl or C3-10 cycloalkyl;R6 is hydrogen or a C1-10 alkyl group;R6′ is a C1-10 alkyl group or C6-10 aryl group;R7 is hydrogen, C1-6 alkyl or OC1-6 alkyl;Z′ is O or S;R3′ is a C1-10 alkyl group, or C6-10 aryl group optionally substituted by one or more halo groups;n is 0 to 4, e.g. 0, 1 or 2; andeach R1 is a C1-10 alkyl group;and (ii) a cocatalyst comprising a compound of a group 13 metal. 16. The process of claim 9, wherein the asymmetrical metallocene catalyst is a racemic catalyst comprising (i) a complex of formula (IV′) or (IV) M is zirconium or hafnium;each X is a sigma ligand;each R′ is independently a hydrogen atom, C1-20 alkyl or C3-7 cycloalkyl;R6 is hydrogen or a C1-10 alkyl group;R6′ is a C1-10 alkyl group or C6-10 aryl group;R7 is hydrogen, C1-6 alkyl or OC1-6 alkyl;Z′ is O or S;R3′ is a C1-10 alkyl group, or C6-10 aryl group optionally substituted by one or more halo groups;n is 0, 1 to 2; andeach R1 is a C3-8 alkyl group;and (ii) a cocatalyst comprising a compound of a group 13 metal. 17. The process as of claim 9, wherein the asymmetrical metallocene catalyst is a racemic catalyst comprising (i) a complex of formula (V) or (V′) wherein each X is a sigma ligand;R′ is independently a C1-6 alkyl or C3-10 cycloalkyl;R1 is C3-8 alkyl;R6 is hydrogen or a C3-8 alkyl group;R6′ is a C3-8 alkyl group or C6-10 aryl group;R3′ is a C1-6 alkyl group, or C6-10 aryl group optionally substituted by one or more halo groups; andn is 0, 1 or 2;and (ii) a cocatalyst comprising a compound of a group 13 metal. 18. The process of claim 9 wherein the catalyst is obtained by a process in which (a) a liquid/liquid emulsion system is formed, said liquid/liquid emulsion system comprising a solution of the catalyst components (i) and (ii) dispersed in a solvent so as to form dispersed droplets; and(b) solid particles are formed by solidifying said dispersed droplets. 19. An article comprising the heterophasic polypropylene resin of claim 1. 20. A polymer blend comprising a heterophasic polypropylene copolymer as claimed in claim 1 and a second different polyolefin. 21. A process comprising manufacturing an article using the heterophasic polypropylene resin of claim 1. 22. The process of claim 11, wherein R7 and R7′ are hydrogen and R2 and R2′ are the same.
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