Method of manufacturing articles of diisocyanate foam having protective skin coatings thereon

Claim 1

A CONTINUOUS METHOD OF FORMING A FLEXIBLE CELLULAR REACTION PRODUCT IN LONGITUDINAL STRIP FORM HAVING UNIFORMLY DISTRIBUTED AND FIRMLY BONDED OVER THE SURFACE THEREOF AN INTEGRAL PROTECTIVE SKIN COATING COMPRISING DEPOSITING A RUBBERY MATERIAL IN THE CAVITY DEFINED BY AN ENDLESS MOVING INNERLINER, DRYING SAID RUBBERY MATERIAL SO THAT IT HAS SUFFICIENT BODY TO REMAIN UNDISTURBED BY THE SUBSEQUENT CONTACT WITH A FOAM PRODUCING COMPOSITION, THEREAFTER DEPOSITING A FOAMABLE MIXTURE OF DIISOCYANATE AND AN ORGANIC SUBSTANCE HAVING A PLURALITY OF GROUPS CONTAINING REACTIVE HYDROGEN ON SAID FILM AND THEREAFTER PASSING SAID INNERLINER THROUGH A PAIR OF GUIDE FORMS FOR A PERIOD OF TIME SUFFICIENT TO ALLOW THE REACTION OF SAID MIXTURE TO PROCEED TO SET-UP SUCH THAT THE PRODUCT HAS SUFFICIENT BODY SO AS NOT TO RUPTURE WHEN REMOVED FROM SAID CAVITY, AND CONTINOUSLY WITHDRAWING SAID INNERLINER FROM SAID GUIDE FORMS AND REMOVING FROM THE CAVITY OF SAID INNERLINER CONTINUOUSLY A STRIP OF CELLULAR PRODUCT.