RO81753B1 - Procedeu de obtinere a polistirenului suport pentru pulberi xerografice - Google Patents
Procedeu de obtinere a polistirenului suport pentru pulberi xerograficeInfo
- Publication number
- RO81753B1 RO81753B1 RO103787A RO10378781A RO81753B1 RO 81753 B1 RO81753 B1 RO 81753B1 RO 103787 A RO103787 A RO 103787A RO 10378781 A RO10378781 A RO 10378781A RO 81753 B1 RO81753 B1 RO 81753B1
- Authority
- RO
- Romania
- Prior art keywords
- xerographic
- powders
- support
- degrees
- obtaining
- Prior art date
Links
- 239000004793 Polystyrene Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229920002223 polystyrene Polymers 0.000 title abstract 2
- 239000000843 powder Substances 0.000 title abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- PYOLJOJPIPCRDP-UHFFFAOYSA-N 1,1,3-trimethylcyclohexane Chemical compound CC1CCCC(C)(C)C1 PYOLJOJPIPCRDP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004342 Benzoyl peroxide Substances 0.000 abstract 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 235000019400 benzoyl peroxide Nutrition 0.000 abstract 1
- 239000012986 chain transfer agent Substances 0.000 abstract 1
- 239000003999 initiator Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 230000035484 reaction time Effects 0.000 abstract 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Procedeul de obtinere a polistirenului utilizat ca suport pentru pulberi xerografice prin polimerizare în suspensie a stirenului în prezenta alcoolului polivinilic si a unui sistem de peroxizi, consta în faptul ca, scopul reducerii duratei de reactie si a masei moleculare la valori cuprinse între 10000 si 30000 si a micsorarii punctului de înmuiere Vicat pîna la 50...55 degree C, în mediul de reactie se introduc: 2...10%, de preferinta 4...8% peroxid de benzoil asociat cu 0,02...1,8%, de preferinta 0,05...1,5% perbenzoat de tertbutil si eventual cu 0,01...1%, de preferinta 0,04...0,8% 1,1-bis-tet-butilperoxi-3,3,5-trimetilciclohexan, cantitatile de initiator fiind raportate la cantitatea de monomer, reactia decurgînd în prezenta unui plastifiant si a unui agent de transfer de lant cunoscuti la un ciclu termic liniar cuprins în intervalul 50...150 degree C, de preferinta 98...130 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81103787A RO81753A2 (ro) | 1981-03-23 | 1981-03-23 | PROCEDEU DE OBTINERE A POLISTIRENULUI SUPORT PENTRU PULBERI XEROGљAFICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81103787A RO81753A2 (ro) | 1981-03-23 | 1981-03-23 | PROCEDEU DE OBTINERE A POLISTIRENULUI SUPORT PENTRU PULBERI XEROGљAFICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81753B1 true RO81753B1 (ro) | 1983-05-30 |
| RO81753A2 RO81753A2 (ro) | 1983-06-01 |
Family
ID=20109735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81103787A RO81753A2 (ro) | 1981-03-23 | 1981-03-23 | PROCEDEU DE OBTINERE A POLISTIRENULUI SUPORT PENTRU PULBERI XEROGљAFICE |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81753A2 (ro) |
-
1981
- 1981-03-23 RO RO81103787A patent/RO81753A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81753A2 (ro) | 1983-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2965616D1 (en) | Compositions of vermiculite lamellae and solid particulate materials and process for the production of vermiculite articles | |
| ZA918965B (en) | Nucleic acid amplification by two-enzyme,self-sustained sequence replication | |
| DE2965980D1 (en) | Organopolysiloxanes modified by graft polymerization of vinyl monomers as well as their use in curable compositions | |
| ES8305300A1 (es) | Procedimiento para la obtencion de monoesteres de acido fumarico. | |
| ATE158T1 (de) | Terpolymere mit 50 mol gehalt an maleinsaeureanhydrid sowie verfahren zu ihrer herstellung. | |
| JPS5223145A (en) | Process for preparing a modified polyolefin composition | |
| JPS5242592A (en) | Process for preparing styene-acrylonitrile copolymers | |
| JPS5620169A (en) | Scale inhibitor | |
| JPS5227491A (en) | Process for preparing a vinyl chloride polymer | |
| JPS53121890A (en) | Preparation of methyl methacrylate polymer | |
| JPS5363492A (en) | Preparation of modified polyolefin | |
| JPS52128985A (en) | Preparation of polyvinyl chloride by suspension polymerization | |
| JPS55115406A (en) | Manufacture of thermoplastic resin particle | |
| JPS5238773A (en) | Dust collecting water disposal | |
| JPS5293495A (en) | Preparation of modified polyolefins | |
| JPS5388683A (en) | Methylchlorosilane synthesis catalyst | |
| JPS526789A (en) | Process for preparing vinyl copolymers | |
| JPS53109589A (en) | Suspension polymerization of vinyl chloride | |
| JPS5274684A (en) | Process for polymerizing or copolymerizing olefins | |
| JPS51126286A (en) | Method of suspension polymerization of vinyl monomer containing vinyl chloride | |
| JPS5218787A (en) | Suspension polymerization process of vinyl chloride | |
| FR2443424A1 (fr) | Uranate de sodium | |
| JPS5324389A (en) | Preparation of modified ethylene polymers | |
| JPS52128984A (en) | Preparation of vinyl chloride polymers by suspension polymerization | |
| JPS5299283A (en) | Cell culturing device |