A process for producing moldings comprises the steps of injecting a plastified synthetic resin into a mold cavity, thereafter or simultaneously injecting heated fluid having a viscosity of 0.01 - 100 poise into the same mold cavity to fill it with said fluid in such a manner that said heated fluid is...http://www.google.es/patents/US4140672?utm_source=gb-gplus-sharePatente US4140672 - Process for producing moldings
