JPS644609A - Preparation of cyclic olefin copolymer - Google Patents
Preparation of cyclic olefin copolymerInfo
- Publication number
- JPS644609A JPS644609A JP15922987A JP15922987A JPS644609A JP S644609 A JPS644609 A JP S644609A JP 15922987 A JP15922987 A JP 15922987A JP 15922987 A JP15922987 A JP 15922987A JP S644609 A JPS644609 A JP S644609A
- Authority
- JP
- Japan
- Prior art keywords
- cyclic olefin
- amt
- olefins
- softening temp
- lowered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To obtain a copolymer whose flow characteristics during molding are largely improved without detriment to the thermal stability and softening temp., by copolymerizing vinyl chloride with a cyclic olefin in the presence of a radical initiator. CONSTITUTION:Vinyl chloride and a cyclic olefin are copolymerized in the presence of a radical initiator. As the carbon no. of the cyclic olefin used, 4-10 are preferable. Monocyclic olefins such as cyclobutene, cyclohexene etc. and polycyclic olefins such as dicyclo-(2,2,1)heptene-2 can be cited. As the carbon no. of the cyclic olefins, 4-10 are preferable and when it is 11 or larger, the softening temp. of the copolymer is lowered. The amt. of the cyclic olefin used in the polymer is pref. in the range of 1-10wt.% of the total amt. of the monomers. When the amt. of the cyclic olefin is less than 1wt.%, the improving effect of processing flow characteristics is too small and when it is higher than 10wt.%, the softening temp. is lowered and the mechanical properties are deteriorated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15922987A JPS644609A (en) | 1987-06-25 | 1987-06-25 | Preparation of cyclic olefin copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15922987A JPS644609A (en) | 1987-06-25 | 1987-06-25 | Preparation of cyclic olefin copolymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS644609A true JPS644609A (en) | 1989-01-09 |
Family
ID=15689159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15922987A Pending JPS644609A (en) | 1987-06-25 | 1987-06-25 | Preparation of cyclic olefin copolymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644609A (en) |
-
1987
- 1987-06-25 JP JP15922987A patent/JPS644609A/en active Pending
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