Claims
- 1. A pavement marker having an upper surface useful as a pavement marking indicium and comprising a layer of polyorganosiloxane pressure-sensitive adhesive wherein said adhesive is characterized by a 90.degree. peel strength of from 1.8 to 10.5 Newtons per centimeter width from stainless steel at a peel rate of 54 centimeters per minute at 21.degree. C. and more than 0.4 Newton per centimeter width at 2.degree. C. when coated as a 76 micrometer layer on a 51 micrometer polyester backing.
- 2. A pavement marker having an upper surface useful as a pavement marking indicium and comprising a layer of polyorganosiloxane pressure-sensitive adhesive wherein said adhesive is characterized by at least about a 40.degree. arc of contact .beta. with a steel cylinder in a twin cylinder tack test at a pull rate of 54 centimeters per minute at -1.degree. C. when coated as a 76 micrometer layer on a 51 micrometer polyester backing.
- 3. A pavement marker having an upper surface useful as a pavement marking indicium and comprising a layer of polyorganosiloxane pressure-sensitive adhesive wherein said adhesive is characterized by a twin cylinder tack strength, during a 54 centimeters per minute pull in a standard tensile strength measuring device, of at least 1.3 Newtons per centimeter width at 21.degree. C. and at least 0.8 Newton per centimeter at 2.degree. C., when coated as a 76 micrometer layer on 51 micrometer polyester backing.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 07/662,773, filed Feb. 28, 1991, now abandoned.
US Referenced Citations (31)
Foreign Referenced Citations (2)
Number |
Date |
Country |
35599 |
|
EPX |
0354333A1 |
Feb 1990 |
EPX |
Non-Patent Literature Citations (4)
Entry |
Thomas J. Tangney, Silicone Pressure-Sensitive Adhesives for High Performance Applications. |
Thomas J. Tangney, Sub-Ambient Pressure-Sensitive Adhesive Applications: The Advantages of Silicones. |
Duane F. Merrill, Silicone Pressure-Sensitive Adhesives. |
B. C. Copley, Dynamic Mechanical Properties of Silicone Pressure-Sensitive Adhesives. |
Continuations (1)
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Number |
Date |
Country |
Parent |
662773 |
Feb 1991 |
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