Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1985-05-08
1988-02-16
McCamish, Marion C.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
427137, 428327, 4284256, 428913, G02B 512
Patent
active
047254947
ABSTRACT:
A retroreflective sheeting utilizing a particular polymer as the bead bond layer is disclosed. The polymeric bead bond comprises urethane and urea linkages, and has a stage prior to thermosetting in which it may be softened by the application of heat and in which it has a relatively nontacky character. The retroreflective sheeting disclosed possesses the unique combination of high reflectance and superior exterior durability.
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Belisle Louis C.
Borden Thomas R.
Grunzinger, Jr. Raymond E.
Boeder Jennie G.
McCamish Marion C.
Minnesota Mining and Manufacturing Co.
Sell Donald M.
Smith James A.
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