Blended pressure-sensitive asphaltic based adhesives
US4478912A · kind A · utility
28Cited by
20References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Aug 12, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31826
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of an asphaltic based coated reinforcement with these adhesives. They are useful for highway repair and maintenance purposes and for waterproofing and show good adhesion to cementitious, for example asphaltic concrete or Portland cement concrete, substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.