Play Composition Including Crosslinkable Binder

摘要

The present invention is directed toward water based play compositions including a crosslinkable network polymer and a crosslinking system effective to crosslink the polymer. The crosslinking system is a water-soluble salt complex including a primary crosslinking agent, a secondary crosslinking agent, and a tertiary crosslinking agent. The crosslinking system contains a diminished amount of boron compounds while remaining effective in crosslinking network polymers including polyvinyl alcohol (to form moldable dough compositions) and guar gum (to form hydrogels).

主权项

1. A flowable play gel composition comprising:
water; a binder; and a crosslinking system to crosslink the binder, the crosslinking system comprising:
a primary crosslinking agent comprising a first alkali metal salt, anda secondary crosslinking agent comprising a second alkali metal salt, wherein the crosslinking density generated in the binder by the secondary crosslinking agent is less than the crosslinking density generated in the binder by the primary crosslinking agent, anda tertiary crosslinking agent that is present in an amount of about 0.50% or less by weight of the gel composition; wherein the crosslinking system and the binder cooperate to form a hydrogel including a polymer network expanded throughout its volume by the water.