Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
45 words
An article for establishing identity, comprising a substrate carrying identification markings, characterised in that at least part of the article has thereon or therein phosphorescent material including more than one phosphorescence activator, the emissions of the activators differing with respect to both wavelength and lifetime.
Claim 2
Dependent Claim
45 words
An article for establishing identity, comprising a substrate carrying identification markings, characterised in that at least part of the article has thereon or therein phosphorescent material including more than one phosphorescence activator, the emissions of the activators differing with respect to both wavelength and lifetime.
Claim 3
Dependent Claim
16 words
An article according to Claim 1, characterised in that the phosphorescent material contains two phosphorescence activators.
Claim 4
Dependent Claim
27 words
An article according to Claim 1 or Claim 2, characterised in that the phosphorescent material contains, as activators, carbazole sulphonic acid or a salt thereof and p-aminobenzophenone.
Claim 5
Dependent Claim
34 words
An article according to any one of Claims 1 to 3, characterised in that the phosphorescent material comprises a cross-linked condensation resin prepared by a condensation reaction in the presence of the phosphorescence activators.
Claim 6
Dependent Claim
22 words
An article according to Claim 4, characterised in that the cross-linked resin is a condensation product of formaldehyde with an amino compound.
Claim 7
Dependent Claim
17 words
An article according to Claim 5, characterised in that the amino compound is urea or melamine. 0
Claim 8
Dependent Claim
64 words
An article according to any one of Claims 1 to 6, comprising a core of paper, ca.rd or plastics material and an outer covering comprising at least one layer of transparent plastics material, characterised in that the said phosphorescent material is present in the form of printed matter (8) on the core (2) or on an inner surface (6) of the outer covering (3).
Claim 9
Dependent Claim
32 words
An article according to Claim 7, characterised in that the outer covering (3) comprises a polyester/polyethylene laminate, a polyethylene layer being adjacent the core (2) and carrying the phosphorescent printed matter (8).
Claim 10
Dependent Claim
45 words
An article according to any one of Claims 1 to 6, comprising a core of paper or card and an outer covering comprising at least one layer of transparent plastics material, characterised in that the phosphorescent material is coated onto or distributed throughout the core.