Patent ID: 11879044
Assignee: ROGERS INOAC CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  A | IPC C

Claim 0:
1. A polyurethane foam obtained from a polyurethane raw material containing a polyol component and a polyisocyanate component, and a gas for foaming, wherein
the polyurethane raw material contains a hydrophobic silica as a foam retention agent for retaining a foam and a light calcium carbonate, and
in the polyurethane raw material, a blending amount of the light calcium carbonate is 20 parts by weight or more and 180 parts by weight or less and a blending amount of the hydrophobic silica is 0.6 part by weight or more and 6 parts by weight or less, based on 100 parts by weight of the polyol component.