CA2134462A1 - Grafting of monomers onto polyolefins in presence of organic peroxides - Google Patents
Grafting of monomers onto polyolefins in presence of organic peroxidesInfo
- Publication number
- CA2134462A1 CA2134462A1 CA002134462A CA2134462A CA2134462A1 CA 2134462 A1 CA2134462 A1 CA 2134462A1 CA 002134462 A CA002134462 A CA 002134462A CA 2134462 A CA2134462 A CA 2134462A CA 2134462 A1 CA2134462 A1 CA 2134462A1
- Authority
- CA
- Canada
- Prior art keywords
- polyolefin
- grafting
- organic peroxide
- onto
- carrier polymer
- 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.)
- Granted
Links
Landscapes
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
A method for the grafting of a monomer onto a polyolefin in the presence of an organic peroxide is disclosed. The polyolefin is a polyolefin that, when molten, undergoes cross-linking in the presence of the organic peroxide. The method comprises: (a) admixing the polyolefin in an extruder with 25 to 6000 ppm, based on the weight of the polyolefin, of an organic peroxide coated onto a carrier polymer and up to 5%, by weight of the polyolefin, of a grafting monomer capable of being grafted onto the polyolefin in the presence of the organic peroxide. The admixture is heated to a temperature above the melting point of both the polyolefin and the carrier polymer under admixing conditions to effect grafting of said grafting monomer onto the polyolefin, said carrier polymer undergoing chain scission in preference to cross-linking in the presence of the organic peroxide at said temperature.
Grafted polyolefin is extruded from the extruder. The method may be used to produce grafted polyolefins with lower levels of gels and specks, especially for use in films and adhesives.
Grafted polyolefin is extruded from the extruder. The method may be used to produce grafted polyolefins with lower levels of gels and specks, especially for use in films and adhesives.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB939308669A GB9308669D0 (en) | 1993-04-27 | 1993-04-27 | Grafting of monomers onto polyolefins in presence of organic peroxides |
| GB9308669.2 | 1993-04-27 | ||
| PCT/CA1994/000224 WO1994025498A1 (en) | 1993-04-27 | 1994-04-22 | Grafting of monomers onto polyolefins in presence of organic peroxides |
| US08/234,959 US6331595B1 (en) | 1993-04-27 | 1994-04-28 | Grafting of monomers onto polyolefins in presence of organic peroxides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2134462A1 true CA2134462A1 (en) | 1994-10-28 |
| CA2134462C CA2134462C (en) | 2005-11-15 |
Family
ID=35520880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002134462A Expired - Fee Related CA2134462C (en) | 1993-04-27 | 1994-04-22 | Grafting of monomers onto polyolefins in presence of organic peroxides |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2134462C (en) |
-
1994
- 1994-04-22 CA CA002134462A patent/CA2134462C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2134462C (en) | 2005-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |