(19)
(11) EP 0 237 315 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.07.1988 Bulletin 1988/28

(43) Date of publication A2:
16.09.1987 Bulletin 1987/38

(21) Application number: 87302019

(22) Date of filing: 10.03.1987
(84) Designated Contracting States:
AT CH DE ES FR GB IT LI SE

(30) Priority: 11.03.1986 JP 5434786

(71) Applicant: SEIBU POLYMER KASEI KABUSHIKI KAISHA also trading as SEIBU POLYMER CHEMICAL COMPANY LIMITED
 ()

(72) Inventors:
  • Ishihara, Yuji
     ()
  • Ijichi, Koichi
     ()

   


(54) All-weather type pavement marking sheet material


(57) In an all-weather type pavement marking sheet material, glass microspheres having refractive index of 1.5 - 1.9 (A) and glass microspheres having refractive index of 2.0 - 2.4 (B) are embedded mixedly and at least partially in a portion of a base sheet (1) made of rubber, synthetic resin or the like. This portion (S) is formed at intervals in the longitudinal direction of the base sheet or continuously in the longitudinal direction of the base sheet in a part of the base sheet as viewed in the transverse direction of the base sheet. The pavement marking sheet material has an excellent visibility during night and particularly when it is raining.







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