Pavement-marking sheet materials of increased durability comprise a tough, abrasion-resistant top layer, preferably a polyurethane film having substantial flexibility but including trifunctional hydroxyl-terminated components of short molecular weight so as to obtain a significant degree of crosslinking, and a conformable underlying layer. A preferred underlying layer comprises unvulcanized elastomer precursor.
申请公布号
DE3686101(T2)
申请公布日期
1993.01.21
申请号
DE19863686101T
申请日期
1986.06.12
申请人
MINNESOTA MINING & MFG. CO., SAINT PAUL, MINN., US
发明人
SENGUPTA, ASOK C/O MINNESOTA MINING AND;ETHEN, JOHN L. C/O MINNESOTA MINING AND;JORDAN, STANLEY J. C/O MINNESOTA MINING AND, P.O. BOX 33427 ST. PAUL MINNESOTA, 55133, US