Patent ID: 9180073
Filing Date: 2015-11-10
Classification: A61K

Abstract:
1. A silicone impression material comprising, by the total weigh of the material: 20% to 70% organopolysiloxanes having at least two unsaturated groups in a molecule; 3% to 15% organohydrogen polysiloxanes having at least two SiH groups in a molecule; 20% to 70% of a filler; 0.01 to 0.5% of a platinum catalyst; 0.25% to 6% of a sorbitan fatty acid ester based surfactant having an HLB of 6.0 to 10.0 as a hydrophilizing agent; and 0.25% to 15% of a nonionic surfactant, as a hydrophilizing agent, composed of a polyether modified silicone; wherein the material, both in an uncured state and in a cured state, is capable of achieving a contact angle measured between a droplet of ion exchange water and the material measured 10 seconds after the droplet of ion exchange water is dropped onto a surface of the material that is smaller than a contact angle that can be achieved under identical conditions by a composition that is identical to the material except that the composition does not contain the sorbitan fatty acid ester based surfactant.