Claims
- 1. A skid-resistant, surface marking material, comprising:
- (a) a polymer matrix phase having a top surface; and
- (b) a plurality of opaque, skid-resistant ceramic spheroids partially embedded in and protruding from the top surface of the polymer matrix phase, wherein said ceramic spheroids have rounded surfaces and no substantial points, and wherein said ceramic spheroids have a Krumbein roundness of at least 0.8.
- 2. The skid-resistant, surface marking material of claim 1, wherein said ceramic spheroids comprise 3 to 97 parts by weight of a vitreous matrix phase and 3 to 97 parts by weight of a crystalline phase.
- 3. The skid-resistant, surface marking material of claim 2, further comprising a base sheet underlying the polymer matrix phase.
- 4. The skid-resistant, surface marking material of claim 2, wherein the vitreous matrix phase comprises a material selected from the group consisting of nepheline syenite, basalt, feldspar, shale, argillite, pyroxene, talc, wollastonite, and mixtures thereof.
- 5. The skid-resistant, surface marking material of claim 2, wherein the vitreous matrix phase comprises a clay material.
- 6. The skid-resistant, surface marking material of claim 5, wherein the clay is selected from the group consisting of kaolin, bentonite, and mixtures thereof.
- 7. The skid-resistant, surface marking material of claim 2, wherein the crystalline phase comprises a material selected from the group consisting of alumina, mullite, and mixtures thereof.
Parent Case Info
This is a continuation-in-part of application Ser. No. 07/241,318, filed Sept. 7, 1988, U.S. Pat. No. 4,937,127.
US Referenced Citations (7)
Foreign Referenced Citations (5)
Number |
Date |
Country |
1002803 |
Jan 1977 |
CAX |
206670 |
Dec 1986 |
EPX |
2927362 |
Jan 1981 |
DEX |
60-130660 |
Jul 1985 |
JPX |
541674 |
Nov 1973 |
CHX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
241318 |
Sep 1988 |
|