Patent ID: 11891484
Assignee: CRAYOLA LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 9:
10. A method of making a putty comprising the steps of:
a) combining:
at least one non-crosslinked polydiorganosiloxane comprising at least two reactive functional groups;
at least one additive; and
at least one crosslinker capable of reacting with the reactive functional groups, to produce a reaction mixture, wherein the reaction mixture comprises less than 0.1 wt. % boron; and
b) allowing the crosslinker to react with the at least one non-crosslinked polydiorganosiloxane to form the putty;, wherein the putty is dilatant, exhibits cold flow, and the at least one crosslinker comprises less than 0.9 ppm weight of organotin compounds and consists essentially of at least one of aluminum alkoxides, chelated aluminum complexes, titanium alkoxides, chelated titanium complexes, zirconium alkoxides, zirconium chelates, hafnium alkoxides, chelated hafnium complexes, and mixtures thereof.