Adhesives made from interpolymers of ethylene/alpha-olefins
US8222339B2 · kind B2 · utility
21Cited by
3References
16Claims
0Family size
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Key dates
| Filing date | Aug 21, 2008 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Feb 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2878
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An adhesive composition comprises: (i) at least one ethylene/α-olefin interpolymer, (ii) at least one tackifier; and (iii) an oil or a low molecular weight polymer. Preferably, the ethylene/α-olefin interpolymer has a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm≧858.91−1825.3(d)+1112.8(d)2. The composition can be used in hot melt adhesives, pressure sensitive adhesives, hot melt pressure sensitive adhesives and thermoplastic marking paints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.