RO84883B1 - Procedeu continuu pentru fabricarea copolimerilor etilena-acetat de vinil - Google Patents
Procedeu continuu pentru fabricarea copolimerilor etilena-acetat de vinilInfo
- Publication number
- RO84883B1 RO84883B1 RO107948A RO10794882A RO84883B1 RO 84883 B1 RO84883 B1 RO 84883B1 RO 107948 A RO107948 A RO 107948A RO 10794882 A RO10794882 A RO 10794882A RO 84883 B1 RO84883 B1 RO 84883B1
- Authority
- RO
- Romania
- Prior art keywords
- suspension
- continuous process
- ethylene
- acetate copolymers
- vinyl acetate
- Prior art date
Links
- 238000010924 continuous production Methods 0.000 title abstract 2
- 229920001577 copolymer Polymers 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229920002554 vinyl polymer Polymers 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 239000003999 initiator Substances 0.000 abstract 1
- 229920000609 methyl cellulose Polymers 0.000 abstract 1
- 239000001923 methylcellulose Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000000375 suspending agent Substances 0.000 abstract 1
- 239000000052 vinegar Substances 0.000 abstract 1
- 235000021419 vinegar Nutrition 0.000 abstract 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Procedeul continuu pentru fabricarea copolimerilor etilena-acetat de vinil, conform inventiei, prin aducerea în contact a monomerilor, la presiune de 100....800 at si la temepartura dee 50...80 degree C, în prezenta unei cantitati de 0,2...1,5% fata de acetatul de vinil, de initiator radicalici cunoscuti, în mediu de solutie apoasa, constituita dintr-un amestec de acid fosforic, acetat si boric, cu concentratie de 0,04 M fiecare si adusa la in pH de 4...5 cu solutie 0,2 N hidroxi de sodiu, utilizînd drept agent de suspensie metilceluloza în proportie de 0,05...0,5% conform inventiei principale cu descrierea 80309, consta în aceea ca, în scopul maririi etanseitati sistemului de afitare si a transferului de copolimerizare în suspensie are loc în elemente tubulare, în care transferul de caldura si de masa se face prin recircularea suspensiei cu o pompa de înalta presiune, numarul elementelor tubulare fiind astfel ales încît continutul final de copolimer etilena-acetat de vinil în suspensie sa nu depaseasca 60% în greutate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107948A RO84883B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu continuu pentru fabricarea copolimerilor etilena-acetat de vinil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107948A RO84883B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu continuu pentru fabricarea copolimerilor etilena-acetat de vinil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO84883A3 RO84883A3 (ro) | 1984-08-17 |
| RO84883B1 true RO84883B1 (ro) | 1984-09-30 |
Family
ID=20111740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO107948A RO84883B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu continuu pentru fabricarea copolimerilor etilena-acetat de vinil |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO84883B1 (ro) |
-
1982
- 1982-06-22 RO RO107948A patent/RO84883B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO84883A3 (ro) | 1984-08-17 |
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