Blends of substantially amorphous higher 1-olefin copolymers and tackifying resins useful as pressure-sensitive adhesives
US4217428A · kind A · utility
28Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1977 |
| Grant date | Aug 12, 1980 |
| Priority date | — |
| Expiry date | Nov 7, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2883
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to blends of substantially amorphous propylene/higher 1-olefin, 1-butene/higher 1-olefin, or propylene/1-butene/higher 1-olefin copolymers with tackifying resins which provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. The copolymers contain 40 to 60 mole % of one or more higher 1-olefins of the group 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene and have a melt viscosity range of 10,000 to 75,000 cp. at 190.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.