Patents by Inventor Eero Jormalainen

Eero Jormalainen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of an isocyanurate modified polyurethane foam and the resulting foam
    Patent number: 4829097
    Abstract: The invention relates to a process for the preparation of novel isocyanurate modified polyurethane foams, which process is characterized in that an organic polyisocyanate is reacted with a polyol in the presence of a catalyst system and a blowing agent, eventually in the presence of a filler material and/or an emulsifying agent, wherein said polyol contains 5 to 100% by weight of an oil, resin or a mixture of resins originating from soft wood and/or a chemically modified resin or oil, and wherein said polyol contains in its molecular structures hydroxl groups capable of reacting with isocyanate groups, and the catalyst system contains 5 to 95% by weight of trimerization catalyst of the polyisocyanate, which catalyst causes cross-linked polyisocyanurate structures containing isocyanurate rings to be formed from the polyisocyanate in the polymer structure, and to novel isocyanurate modified polyurethane foams prepared by the process.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: May 9, 1989
    Assignee: Oy Lohja Ab
    Inventors: Pertti Tormala, Timo Pohjonen, Aimo Ihanamaki, Eero Jormalainen, Kauko Linna