Retroreflective sheeting articles

Details Retroreflective sheeting articles Retroreflective sheeting articles

1997-02-18

2000-01-11

Spyrou, Cassandra

Optical: systems and elements

Signal reflector

3-corner retroreflective

359530, 359532, 428214, 4283166, G02B 5122

Patent

active

060128186

ABSTRACT:
A retroreflective sheet comprises a film having a substantially flat surface and a large number of pyramidal projections having retroreflectivity on the opposite surface, and a colored layer and an adhesive layer disposed on the surface of the film having the projections. The adhesive layer comprises a heat-sensitive adhesive containing an acrylic polymer and a phenolic resin, and exhibits an elastic modulus (by dynamic viscoelasticity measurement, compression mode) at 30.degree. C. ranging from about 1.times.10.sup.6 to 1.times.10.sup.8 dyn/cm.sup.2.

REFERENCES:
patent: 3578622 (1971-05-01), Brown et al.
patent: 3684348 (1972-08-01), Rowland
patent: 3967028 (1976-06-01), Muller et al.
patent: 4025159 (1977-05-01), McGrath
patent: 4199646 (1980-04-01), Hori et al.
patent: 4248748 (1981-02-01), McGrath et al.
patent: 4415630 (1983-11-01), Kubota et al.
patent: 4461796 (1984-07-01), Fukahori et al.
patent: 4588258 (1986-05-01), Hoopman
patent: 4668558 (1987-05-01), Barber
patent: 4699847 (1987-10-01), Nakayama et al.
patent: 4775219 (1988-10-01), Appeldorn et al.
patent: 4805984 (1989-02-01), Cobb, Jr.
patent: 4906070 (1990-03-01), Cobb, Jr.
patent: 4918127 (1990-04-01), Adur et al.
patent: 4994267 (1991-02-01), Sablotsky
patent: 5056892 (1991-10-01), Cobb, Jr.
patent: 5114514 (1992-05-01), Landis
patent: 5125994 (1992-06-01), Harasta et al.
patent: 5138488 (1992-08-01), Szczech
patent: 5175030 (1992-12-01), Lu et al.
patent: 5183597 (1993-02-01), Lu
patent: 5323191 (1994-06-01), Firtion et al.
patent: 5393603 (1995-02-01), Toyoda et al.
patent: 5459184 (1995-10-01), Bunnelle et al.
Tack by Fred H. Hammond, Jr., Handbook of Pressure-Sensitive Adhesive Technology (1982) pp. 32-49.
The Theory and Practive of Corona Treatment for Improving Adhesion by R. H. Cramm & D. V. Bibee, Tappi vol. 65, No. 8 Aug. 1982, pp. 75-78.
Testing Methods for Optical Properties of Plastics JIS K 7105, Japanese Standards Association, 1981.
Pressure Sensitive Adhesive Tapes and Adhesive Sheets Testing Methods JIS Z 0237, Japanese Standards Association, 1991.

Affiliated with

Also associated with

Rating

Retroreflective sheeting articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retroreflective sheeting articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retroreflective sheeting articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1457019