Abstract: A dental mill blank including a resin and a filler, wherein the blank is fabricated such that it passes a Thermal Shock Test. The mill blank is substantially free of cracks and discontinuities. Further, the blank may have superior cuttability and hardness.
Type:
Grant
Filed:
October 28, 2010
Date of Patent:
November 27, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Richard P. Rusin, Kevin M. Cummings, Roger J. Carufel
Abstract: The invention relates to an initiator system comprising a diarylalkylamine compound and a sensitizing agent. The invention also relates to a hardenable composition comprising the initiator system. The invention further relates to the use of the initiator system for initiating the hardening process of a hardenable composition being selected from cationically curing composition(s) and/or radically curing composition(s) or a mixture thereof. The initiator system and the hardening composition can be used in various fields, including the dental and orthodontic area.
Type:
Grant
Filed:
May 28, 2009
Date of Patent:
November 20, 2012
Assignee:
3M Innovative Properties Company
Inventors:
Bettina Hailand, Adrian S. Eckert, Karsten Dede