IT1098186B - ABS continuous prodn. by bulk graft polymerisation - after preheating under pressure to give specified monomer conversion and increase rubber effectiveness - Google Patents
ABS continuous prodn. by bulk graft polymerisation - after preheating under pressure to give specified monomer conversion and increase rubber effectivenessInfo
- Publication number
- IT1098186B IT1098186B IT2685578A IT2685578A IT1098186B IT 1098186 B IT1098186 B IT 1098186B IT 2685578 A IT2685578 A IT 2685578A IT 2685578 A IT2685578 A IT 2685578A IT 1098186 B IT1098186 B IT 1098186B
- Authority
- IT
- Italy
- Prior art keywords
- abs
- effectiveness
- under pressure
- degrees
- monomer conversion
- Prior art date
Links
- 239000000178 monomer Substances 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- 239000005062 Polybutadiene Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 229920002857 polybutadiene Polymers 0.000 abstract 1
- 239000003039 volatile agent Substances 0.000 abstract 1
Landscapes
- Graft Or Block Polymers (AREA)
Abstract
Continuous prodn. of ABS by (graft) polymerisation of a soln. of butadiene rubber (I) in a mixt. of styrene (II) and acrylonitrile (III) monomers is carried out at 80-200 degrees C., followed by removal of volatiles from the ABS melt at 200-230 degrees C. and 10-20 torr. The novelty is that the (I) soln. is heated, before polymerisation, at 60-100 degrees C. and a pressure exceeding the (III) vapour pressure at the temp. used until the degree of conversion of the monomers attained is 3-6%. ABS is widely used for the mfr. of pts. and housings for radio and TV receivers, telephone equipment, typewriters and calculators, refrigerator linings, vehicles pts., tubes, etc. The prod. has the required physical-mechanical properties and a lower copolymer content than usual, which increases its effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2685578A IT1098186B (en) | 1978-08-18 | 1978-08-18 | ABS continuous prodn. by bulk graft polymerisation - after preheating under pressure to give specified monomer conversion and increase rubber effectiveness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2685578A IT1098186B (en) | 1978-08-18 | 1978-08-18 | ABS continuous prodn. by bulk graft polymerisation - after preheating under pressure to give specified monomer conversion and increase rubber effectiveness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7826855A0 IT7826855A0 (en) | 1978-08-18 |
| IT1098186B true IT1098186B (en) | 1985-09-07 |
Family
ID=11220384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2685578A IT1098186B (en) | 1978-08-18 | 1978-08-18 | ABS continuous prodn. by bulk graft polymerisation - after preheating under pressure to give specified monomer conversion and increase rubber effectiveness |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1098186B (en) |
-
1978
- 1978-08-18 IT IT2685578A patent/IT1098186B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT7826855A0 (en) | 1978-08-18 |
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