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1. (WO1998028642) RETROREFLECTIVE ARTICLE HAVING LAUNDERABLY DURABLE BEAD-BOND
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/028642 International Application No.: PCT/US1997/023040
Publication Date: 02.07.1998 International Filing Date: 04.12.1997
Chapter 2 Demand Filed: 30.06.1998
IPC:
C08G 18/61 (2006.01) ,C08G 18/71 (2006.01) ,G02B 5/128 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
28
characterised by the compounds used containing active hydrogen
40
High-molecular-weight compounds
61
Polysiloxanes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
70
characterised by the isocyanates or isothiocyanates used
71
Monoisocyanates or monoisothiocyanates
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
12
Reflex reflectors
126
including curved refracting surface
128
transparent spheres being embedded in matrix
Applicants: MINNESOTA MINING AND MANUFACTURING COMPANY[US/US]; 3M Center P.O. Box 33427 Saint Paul, MN 55133-3427, US
Inventors: FLEMING, Robert, J.; US
Agent: HANSON, Karl, G. ; Minnesota Mining and Manufacturing Company Office of Intellectual Property Counsel P.O. Box 33427 Saint Paul, MN 55133-3427, US
VOSSIUS & PARTNER; P.O. Box 86 07 67 D-81634 Munchen, DE
Priority Data:
08/777,71820.12.1996US
Title (EN) RETROREFLECTIVE ARTICLE HAVING LAUNDERABLY DURABLE BEAD-BOND
(FR) ARTICLE RETROREFLECHISSANT A AGENT DE LIAISON DES BILLES RETROREFLECHISSANTES RESISTANT AU LAVAGE
Abstract:
(EN) A retroreflective article (10) has retroreflective elements (12) partially embedded in a binder layer (14) that contains a solid polyurethane. The polyurethane includes soft segments, hard segments, silicon moieties, and urethane moieties. The specific chemical identities and relative amounts of the segments and moieties are sufficient to impart desired high elongation and low modulus to the polymer. The inventive retroreflective article is capable of demonstrating extraordinary laundering durability under industrial wash conditions and tumble and tunnel drying.
(FR) Cette invention concerne un article rétroréfléchissant (10) comportant des éléments rétroréfléchissants (12) partiellement noyés dans une couche de liant (14) qui contient un polyuréthanne solide. Ledit polyuréthanne comprend des segments souples, des segments durs, des fractions de silicone et des fractions d'uréthanne. Les identités chimiques spécifiques et les quantités relatives des segments et des fractions sont suffisantes pour conférer au polymère les caractéristiques souhaitées d'allongement élevé et de faible module. Ledit article rétroréfléchissant est susceptible de s'avérer extraordinairement résistant au lavage dans des conditions de lavage industrielles et de séchage en séchoir-tunnel ou en sécheuse à culbutage.
Designated States: CA, CN, JP, KR
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)