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US 5,204,409 AGranted
Crosslinking agents for polymeric adhesives
AssigneeBayer Aktiengesellschaft
InventorsGunter Arend, Otto Ganster, Rudolf Hombach, Horst Muller-Albrecht, Knut Panskus
Life of this patent
Estimating the term…
Abstract
The invention relates to crosslinking isocyanates for polymeric adhesives containing a mixture of triisocyanatotriphenyl methane and trimerization products of 2,4-tolylene diisocyanate containing at least 50% triisocyanatomonoisocyanurate and less than 1% free tolylene diisocyanate.
Claims8
A crosslinking agent for polymeric adhesives comprising a mixture of
- A) 4,4',4"-triisocyanatotriphenyl methane and
- B) trimerization products of 2,4-tolylene diisocyanate containing at least 50% by weight triisocyanatomonoisocyanurate and less than 1% by weight free tolylene diisocyanate.
Dependencies are inferred from the claim text.