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Adhesive compositions having a carbon black component |
| T964011 |
Adhesive compositions having a carbon black component
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| Inventor: |
Blanken |
| Date Issued: |
November 1, 1977 |
| Application: |
05/772,810 |
| Filed: |
February 28, 1977 |
| Inventors: |
Blanken; Thomas C. (Amsterdam, NL)
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| U.S. Class: |
428/408; 428/489; 428/521; 428/522; 428/523; 524/68 |
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| Abstract: |
article provided with a pressure-sensitive adhesive layer composition, which composition is characterized by improved flow resistance at high temperatures (e.g. at 90.degree. C), and which comprises 50-97 parts by weight of a bituminous component dispersed in an extender oil, 3 to 50 parts by weight of at least one thermoplastic polymer, which is preferably a block polymer having the general structure:where A is a monoalkenyl arene block, B is a conjugated diene block, and n is an integer from 1-15, and 5 to 50% by weight (based on the combined weight of the bituminous component and the thermoplastic polymer) of a carbon black having an oil absorptivity of above 80 milliliters per 100 grams. Such articles usually possesses good low temperature flexibility, tack and adhesive strength. |
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