2107322-A is referenced by 7 patents.

In a method of marking a polymer by irradiation with a laser beam, the polymer is modified before irradiation to increase its absorption of energy of the wavelength of the laser beam, for example by incorporating in the polymer an additive which has a strong absorption for energy of the wavelength of the laser beam, the additive suitably being a silicate such as calcium silicate.

Title
Method of marking polymers by laser beam and polymers adapted therefor
Application Number
GB19810028729 19810923
Publication Number
2107322 (A)
Application Date
September 23, 1981
Publication Date
April 27, 1983
Inventor
Lock Michael John
Assignee
Metal Box
IPC
C08K 03/34
C08K 03/00
B41M 05/26
C08K 03/34
B41M 05/26
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