IT1111069B - Reduction of monomer level in acrylonitrile polymers - by exposure to ionising radiation at defined low dosage - Google Patents
Reduction of monomer level in acrylonitrile polymers - by exposure to ionising radiation at defined low dosageInfo
- Publication number
- IT1111069B IT1111069B IT5199578A IT5199578A IT1111069B IT 1111069 B IT1111069 B IT 1111069B IT 5199578 A IT5199578 A IT 5199578A IT 5199578 A IT5199578 A IT 5199578A IT 1111069 B IT1111069 B IT 1111069B
- Authority
- IT
- Italy
- Prior art keywords
- acrylonitrile
- ionising radiation
- exposure
- reduction
- low dosage
- Prior art date
Links
- 230000005855 radiation Effects 0.000 title abstract 3
- 229920002239 polyacrylonitrile Polymers 0.000 title abstract 2
- 239000000178 monomer Substances 0.000 title 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- 238000007872 degassing Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 abstract 1
- 230000000711 cancerogenic effect Effects 0.000 abstract 1
- 231100000315 carcinogenic Toxicity 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Landscapes
- Graft Or Block Polymers (AREA)
Abstract
Acrylonitrile polymers, partic. including acrylonitrile/styrene copolymers, are exposed to ionising radiation at a dosage level of 0.05-2 megarads. Such polymers can be in the form of shaped articles. Irradiation can be followed by an HCN degassing treatment. The ionisation radiation can be provided by an electron beam. Other suitable copolymers are those of acrylonitrile with butadiene, methyl acrylate and other acrylates. If desired, the treatment can be applied first to the material in ground or pelletised form, then to the article produced from it. The material can also be treated in soln. or in suspension e.g. in a polymerisation medium. Carcinogenic acrylonitrile monomer can be removed while causing only a low level of HCN generation, which itself is removed in the process by degassing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT5199578A IT1111069B (en) | 1978-11-21 | 1978-11-21 | Reduction of monomer level in acrylonitrile polymers - by exposure to ionising radiation at defined low dosage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT5199578A IT1111069B (en) | 1978-11-21 | 1978-11-21 | Reduction of monomer level in acrylonitrile polymers - by exposure to ionising radiation at defined low dosage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7851995A0 IT7851995A0 (en) | 1978-11-21 |
| IT1111069B true IT1111069B (en) | 1986-01-13 |
Family
ID=11276168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT5199578A IT1111069B (en) | 1978-11-21 | 1978-11-21 | Reduction of monomer level in acrylonitrile polymers - by exposure to ionising radiation at defined low dosage |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1111069B (en) |
-
1978
- 1978-11-21 IT IT5199578A patent/IT1111069B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT7851995A0 (en) | 1978-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19941130 |