IT1198239B - Crystalline vinyl!-aromatic polymer having syndiotactic structure - Google Patents
Crystalline vinyl!-aromatic polymer having syndiotactic structureInfo
- Publication number
- IT1198239B IT1198239B IT22827/86A IT2282786A IT1198239B IT 1198239 B IT1198239 B IT 1198239B IT 22827/86 A IT22827/86 A IT 22827/86A IT 2282786 A IT2282786 A IT 2282786A IT 1198239 B IT1198239 B IT 1198239B
- Authority
- IT
- Italy
- Prior art keywords
- syndiotactic structure
- contg
- crystalline vinyl
- vinyl aromatic
- aromatic polymer
- Prior art date
Links
- 229920002554 vinyl polymer Polymers 0.000 title abstract 3
- 229920000642 polymer Polymers 0.000 title abstract 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 125000004429 atom Chemical group 0.000 abstract 2
- 239000000178 monomer Substances 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 229910011208 Ti—N Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 125000002370 organoaluminium group Chemical group 0.000 abstract 1
- 125000004430 oxygen atom Chemical group O* 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
A process for producing crystalline vinyl aromatic polymers having a predominantly syndiotactic structure, comprises polymerising the vinyl aromatic monomers (I) either alone or mixed with up to 30 wt.% of another copolymerisable ethylenically unsatd. monomer, in the presence of catalytic amts. of a catalyst system (II). (II) comprises the reaction prod. of : (a) a titanium cpd. contg. at least one Ti-N bond, and (b) 10 power4-1 mole/l w.r.t. reaction mixt. of an organoaluminium cpd. contg. at least one oxygen atom, bound to one Al atom or located between two Al atoms. The molar ratio of (II b) to (II a) is 1-1000 pref. 10-200. (II a) and (II b) are supported on organic or inorganic carriers such as SiO2, Al2O3 or Mg halides.
Priority Applications (32)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22827/86A IT1198239B (en) | 1986-12-23 | 1986-12-23 | Crystalline vinyl!-aromatic polymer having syndiotactic structure |
IL84798A IL84798A (en) | 1986-12-15 | 1987-12-11 | Production of crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
IL84797A IL84797A (en) | 1986-12-15 | 1987-12-11 | Production of crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
IL84800A IL84800A (en) | 1986-12-15 | 1987-12-11 | Production of crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
FI875480A FI875480A (en) | 1986-12-15 | 1987-12-14 | FOERFARANDE FOER FRAMSTAELLNING AV KRISTALLINA VINYLAROMATISKA POLYMERER. |
FI875479A FI875479A (en) | 1986-12-15 | 1987-12-14 | FOERFARANDE FOER FRAMSTAELLNING AV KRISTALLINA VINYLAROMATISKA POLYMERER. |
FI875481A FI875481A (en) | 1986-12-15 | 1987-12-14 | FOERFARANDE FOER FRAMSTAELLNING AV KRISTALLINA VINYLAROMATISKA POLYMERER. |
AU82583/87A AU605810B2 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
BR8706812A BR8706812A (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PRODUCTION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH UNION STRUCTURE |
KR870014419A KR880007576A (en) | 1986-12-15 | 1987-12-15 | Method for producing crystalline vinylaromatic polymer mainly having syndiotactic structure |
CA000554382A CA1311580C (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
DE8787118572T DE3782630T2 (en) | 1986-12-15 | 1987-12-15 | METHOD FOR PRODUCING CRYSTALLINE VINYL FLAVORED POLYMERS WITH MAINLY SYNDIOTACTIC STRUCTURE. |
ES87118573T ES2052541T3 (en) | 1986-12-15 | 1987-12-15 | PROCEDURE FOR PRODUCING CRYSTALLINE AROMATIC VINYL POLYMERS WHICH HAVE A PREDOMINANTLY SYNDIOTACTIC STRUCTURE. |
US07/133,055 US5142005A (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
AU82582/87A AU605809B2 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
EP87118572A EP0272584B1 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having a predominantly syndiotactic structure |
BR8706810A BR8706810A (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PRODUCTION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH UNION STRUCTURE |
ES87118571T ES2052540T3 (en) | 1986-12-15 | 1987-12-15 | PROCEDURE FOR MANUFACTURING CRYSTALLINE AROMATIC VINYL POLYMERS WITH A PRE-DOMINANTLY SYNODOTACTIC STRUCTURE. |
AT87118571T ATE81513T1 (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PRODUCTION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH A MAINLY SYNDIOTACTIC STRUCTURE. |
KR870014420A KR880007577A (en) | 1986-12-15 | 1987-12-15 | Method for producing crystalline vinyl aromatic polymer mainly having syndiotactic structure |
AT87118573T ATE82987T1 (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PRODUCTION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH A MAINLY SYNDIOTACTIC STRUCTURE. |
ES87118572T ES2043638T3 (en) | 1986-12-15 | 1987-12-15 | PROCEDURE FOR PRODUCING CRYSTALLINE AROMATIC VINYL POLYMERS WHICH HAVE A PREDOMINANTLY SYNDIOTACTIC STRUCTURE. |
JP62315448A JPH07107082B2 (en) | 1986-12-15 | 1987-12-15 | Method for producing crystalline vinyl aromatic polymer mainly having syndiotactic structure |
EP87118571A EP0271874B1 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having a predominantly syndiotactic structure |
DE8787118573T DE3782925T2 (en) | 1986-12-15 | 1987-12-15 | METHOD FOR PRODUCING CRYSTALLINE VINYL FLAVORED POLYMERS WITH MAINLY SYNDIOTACTIC STRUCTURE. |
DE8787118571T DE3782227T2 (en) | 1986-12-15 | 1987-12-15 | METHOD FOR PRODUCING CRYSTALLINE VINYL FLAVORED POLYMERS WITH MAINLY SYNDIOTACTIC STRUCTURE. |
KR870014418A KR880007575A (en) | 1986-12-15 | 1987-12-15 | Method for producing crystalline vinylaromatic polymer mainly having syndiotactic structure |
BR8706811A BR8706811A (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PRODUCTION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH UNION STRUCTURE |
AU82584/87A AU605811B2 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a sydiotactic structure |
EP87118573A EP0271875B1 (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having a predominantly syndiotactic structure |
AT87118572T ATE82296T1 (en) | 1986-12-15 | 1987-12-15 | PROCESS FOR THE PREPARATION OF CRYSTALLINE VINYL AROMATIC POLYMERS WITH A MAINLY SYNDIOTACTIC STRUCTURE. |
CA000554383A CA1311581C (en) | 1986-12-15 | 1987-12-15 | Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22827/86A IT1198239B (en) | 1986-12-23 | 1986-12-23 | Crystalline vinyl!-aromatic polymer having syndiotactic structure |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8622827A0 IT8622827A0 (en) | 1986-12-23 |
IT1198239B true IT1198239B (en) | 1988-12-21 |
Family
ID=11200901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22827/86A IT1198239B (en) | 1986-12-15 | 1986-12-23 | Crystalline vinyl!-aromatic polymer having syndiotactic structure |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1198239B (en) |
-
1986
- 1986-12-23 IT IT22827/86A patent/IT1198239B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8622827A0 (en) | 1986-12-23 |
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