JPS55742A - Polymer composition composed of polypropylene having relatively low molecular weight - Google Patents
Polymer composition composed of polypropylene having relatively low molecular weightInfo
- Publication number
- JPS55742A JPS55742A JP7455678A JP7455678A JPS55742A JP S55742 A JPS55742 A JP S55742A JP 7455678 A JP7455678 A JP 7455678A JP 7455678 A JP7455678 A JP 7455678A JP S55742 A JPS55742 A JP S55742A
- Authority
- JP
- Japan
- Prior art keywords
- polymer composition
- polypropylene
- peroxide
- elastomer
- organic peroxide
- 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
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To prepare a polymer composition having an excellent adhesivity and good melt flowability and film-forming properties, and useful for powder coating, by reacting a crystalline polypropylene with an elastomer such as EPR, polyisobutylene, IIR, etc. in the presence of an organic peroxide, in the molten state.
CONSTITUTION: A polymer composition having a melt viscosity of ≤ 300,000 cps at 230°C is parepared by reacting (A) a polypropylene having a melt index of pref. ≥ 10, or ≥ 20, with (B) ≤ 30% of an elastomer selected from an ethylene-propylene copolymer rubber (EPR), polyisobutylene rubber, and butyl rubber (IIR), in the presence of an organic peroxide, at 170-200°C. The characteristic temperature of the peroxide at which the half life perild becomes 1 minute, pref. falls within the reaction temperature range. The peroxide is, e.g. di-t-butyl peroxide (186°C). The polymer composition can also be prepared by first treating the polypropylene with the organic peroxide in the molten state, and then mixing with the elastomer.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7455678A JPS55742A (en) | 1978-06-20 | 1978-06-20 | Polymer composition composed of polypropylene having relatively low molecular weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7455678A JPS55742A (en) | 1978-06-20 | 1978-06-20 | Polymer composition composed of polypropylene having relatively low molecular weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55742A true JPS55742A (en) | 1980-01-07 |
Family
ID=13550615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7455678A Pending JPS55742A (en) | 1978-06-20 | 1978-06-20 | Polymer composition composed of polypropylene having relatively low molecular weight |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55742A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051111A (en) * | 1981-06-15 | 1993-01-08 | Kimberly Clark Corp | Polypropylene pellet |
| WO2010077769A1 (en) * | 2008-12-29 | 2010-07-08 | Exxonmobil Chemical Patents Inc. | Process for forming polymer blends |
| US8664336B2 (en) | 2008-12-29 | 2014-03-04 | Exxonmobil Chemical Patents Inc. | Process for forming polymer blends |
-
1978
- 1978-06-20 JP JP7455678A patent/JPS55742A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051111A (en) * | 1981-06-15 | 1993-01-08 | Kimberly Clark Corp | Polypropylene pellet |
| WO2010077769A1 (en) * | 2008-12-29 | 2010-07-08 | Exxonmobil Chemical Patents Inc. | Process for forming polymer blends |
| CN102264804A (en) * | 2008-12-29 | 2011-11-30 | 埃克森美孚化学专利公司 | Process for forming polymer blends |
| US8293842B2 (en) | 2008-12-29 | 2012-10-23 | Exxonmobil Chemical Patents Inc. | Process for forming polymer blends |
| US8664336B2 (en) | 2008-12-29 | 2014-03-04 | Exxonmobil Chemical Patents Inc. | Process for forming polymer blends |
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