Isocyanate-coupled reinforced oxymethylene polymers using...

Details Isocyanate-coupled reinforced oxymethylene polymers using... Isocyanate-coupled reinforced oxymethylene polymers using...

C - Chemistry, Metallurgy

08

L

400/7356, 400/73

C08L 59/04 (2006.01) C08G 18/16 (2006.01) C08G 18/18 (2006.01) C08G 18/56 (2006.01) C08K 13/02 (2006.01) C08K 13/06 (2006.01)

Patent

CA 1245793

ABSTRACT OF THE DISCLOSURE An improved oxymethylene polymer composition is pro- vided which is comprised of a blocked or unblocked isocyanate, a synergistic blend of isocyanate catalysts consisting of dibutyl tin dilaurate and at least one alkyl dimethyl benzyl ammonium saccharinate (as defined) and a reinforcing agent. The presence of the blend of isocyanate catalysts enables satisfactory coupling to be achieved between the reinforcing agent and the oxymethylene polymer with a smaller amount of isocyanate coupling agent than would normally be required. In addition, a lessened amount of catalyst is required to achieve such a result. -1-

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