Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1997018947) DURABLE PAVEMENT MARKING TAPE WITH SCREENCOATED POLYURETHANE TOPCOAT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018947 International Application No.: PCT/US1996/016529
Publication Date: 29.05.1997 International Filing Date: 16.10.1996
Chapter 2 Demand Filed: 16.05.1997
IPC:
B32B 27/08 (2006.01) ,E01F 9/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
06
as the main or only constituent of a layer next to another layer of a specific substance
08
of synthetic resin of a different kind
E FIXED CONSTRUCTIONS
01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
9
Arrangement of road signs or traffic signals; Arrangements for enforcing caution, e.g. speed bumps
04
Road surface markings; Kerbs or road edgings, specially adapted for informing road users, e.g. illuminated
Applicants:
MINNESOTA MINING AND MANUFACTURING COMPANY [US/US]; 3M Center P.O. Box 33427 Saint Paul, MN 55133-3427, US
Inventors:
GOEB, Siegfried, Rainer; US
HARPER, James, H., C.; US
Agent:
JORDAN, Robert, H. ; Minnesota Mining and Manufacturing Company Office of Intellectual Property Counsel P.O. Box 33427 Saint Paul, MN 55133-3427, US
VOSSIUS & PARTNER (No. 31); P.O. Box 86 07 67 D-81634 München, DE
Priority Data:
08/562,04122.11.1995US
Title (EN) DURABLE PAVEMENT MARKING TAPE WITH SCREENCOATED POLYURETHANE TOPCOAT
(FR) BANDE DE MARQUAGE DURABLE A COUCHE SUPERIEURE A BASE DE POLYURETHANE FORMANT ECRAN
Abstract:
(EN) A pavement marking material comprises a flexible base sheet (11) that is conformable to an irregular pavement surface. A durable, wear-resistant polymeric top layer (18) which is discontinuous in two directions is affixed to one surface of the base sheet. The polymeric top layer is discontinuous in both the cross web direction and the down web directions. This discontinuity in two directions is obtained by means of a continuous process such as a rotary screen printing process. A rotary screen printing process is much more efficient if the composition to be coated has an infinite pot life at application temperatures. This infinite pot life is attained through the use of a blocked isocyanate crosslinker. The discontinuous nature in two directions of the polymeric top layer provides for increased initial conformance of the pavement marking to irregular pavement surfaces. The discontinuous nature of the polymeric top layer also reduces elastic tensile stresses which tend to build up in continuous top layers and cause adhesive failure. A plurality of particles, retroreflective microspheres and/or skid-resistant particles, are embedded in and protrude from the non-continuous top layer.
(FR) L'invention a trait à un matériau de marquage de chaussée comportant une feuille souple de base (11) pouvant épouser les irrégularités superficielles de la chaussée. On appose sur l'une des faces de la feuille de base une couche supérieure polymère (18) durable, résistante à l'usure et d'une structure discontinue dans deux sens, transversal et descendant. On obtient cette discontinuité en mettant en oeuvre un processus en continu tel qu'une impression au cadre rotatif, technique se révélant encore plus efficace si la durée d'utilisation de la composition d'enduisage est très longue. L'emploi d'un agent de réticulation bloqué, à base d'isocyanate, garantit une telle durée. La discontinuité de structure, dans les deux sens, de la couche supérieure polymère, renforce la conformité initiale du marquage de chaussée avec les irrégularités superficielles de celle-ci et réduit également les contraintes de traction ayant tendance à s'accumuler dans les couches supérieures et entraînant des défaillances au niveau de l'adhérence. Plusieurs particules, microsphères rétroréfléchissantes et/ou particules antidérapantes, sont prises dans la couche supérieure non continue et dépassent de celle-ci.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1998/004042EP0863813JP2000511247 CN1202854CA2237358KR1019990071467
AU1996074351