Abstract: A coating agent for pencils for writing, sketching or drawing or for cosmetic articles of all kinds, including at least one cellulose fraction, at least one binder, at least one plasticizer, and at least one adhesion promoter, wherein the adhesion promoter is designed as a silane having functional groups.

Abstract: A coating agent for pencils for writing, sketching or drawing or for cosmetic articles of all kinds, including at least one cellulose fraction, at least one binder, at least one plasticizer, and at least one adhesion promoter, wherein the adhesion promoter is designed as a silane having functional groups.

Abstract: A photoresponsive material comprises molecular or polymeric semiconductors in which photogeneration of separated charge carriers proceeds substantially via an intermediate stage of a triplet exciton, where the generation of the triplet exciton may be facilitated by the presence of elements of high atomic number, and in which the generation of separated charges from the intermediate triplet excited states is facilitated by the presence of at least two semiconductive components, one of which is of high electron affinity and able to accept electrons, and the other of which is of low ionisation potential and therefore able to accept positive charge carriers, the difference between the electron affinity of the former and the ionisation potential of the latter being sufficiently low so as to allow the ionisation of a triplet exciton which is present on either of the two aforementioned semiconductive components or on a third component.