GB1002696A - Process for the manufacture of amorphous polypropylenes - Google Patents
Process for the manufacture of amorphous polypropylenesInfo
- Publication number
- GB1002696A GB1002696A GB1443562A GB1443562A GB1002696A GB 1002696 A GB1002696 A GB 1002696A GB 1443562 A GB1443562 A GB 1443562A GB 1443562 A GB1443562 A GB 1443562A GB 1002696 A GB1002696 A GB 1002696A
- Authority
- GB
- United Kingdom
- Prior art keywords
- manufacture
- amorphous polypropylenes
- oxygen
- amorphous
- polypropylenes
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/50—Partial depolymerisation
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
A viscous to semi-solid amorphous, rubberlike polypropylene of density 0.82 to 0.89, melt viscosity 10,000 to 1,000,000 and M.W. 3000 to 20,000, is heated at 280 DEG to 400 DEG C. for 1 to 150 minutes to give a product having a narrow distribution of molecular weight. The heating is preferably in the absence of oxygen or compounds liberating oxygen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0033654 | 1961-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1002696A true GB1002696A (en) | 1965-08-25 |
Family
ID=7095191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1443562A Expired GB1002696A (en) | 1961-04-13 | 1962-04-13 | Process for the manufacture of amorphous polypropylenes |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE616420A (en) |
| CH (1) | CH419616A (en) |
| DE (1) | DE1495641A1 (en) |
| FR (1) | FR1319634A (en) |
| GB (1) | GB1002696A (en) |
| NL (1) | NL276854A (en) |
| SE (1) | SE311085B (en) |
-
0
- BE BE616420D patent/BE616420A/xx unknown
- NL NL276854D patent/NL276854A/xx unknown
-
1961
- 1961-04-13 DE DE19611495641 patent/DE1495641A1/en active Pending
-
1962
- 1962-04-11 FR FR894076A patent/FR1319634A/en not_active Expired
- 1962-04-11 CH CH442562A patent/CH419616A/en unknown
- 1962-04-12 SE SE410162A patent/SE311085B/xx unknown
- 1962-04-13 GB GB1443562A patent/GB1002696A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1495641A1 (en) | 1969-06-19 |
| SE311085B (en) | 1969-05-27 |
| BE616420A (en) | |
| NL276854A (en) | |
| FR1319634A (en) | 1963-03-01 |
| CH419616A (en) | 1966-08-31 |
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