Peroxide treated substantially amorphous polyolefin/hydrocarbon rubber blends useful as pressure-sensitive adhesives
US4105718A · kind A · utility
16Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Jul 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a process for the treatment of substantially amorphous polyolefin/hydrocarbon rubber blends with peroxides at high temperatures to provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. These permanently tacky blends are obtained, for example, by treating a blend of substantially amorphous polyolefins, such as amorphous polypropylene or amorphous propylene/1-butene copolymers, and a hydrocarbon rubber, with peroxides at high temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.