Patents by Inventor Eerik Maandi

Eerik Maandi 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).

  • Optimized anaerobic adhesive compositions and methods of preparing same
    Patent number: 6509394
    Abstract: The present invention relates to anaerobic adhesive compositions which have been optimized using experimental design techniques to produce desired physical properties. A simplified cure system is disclosed which permits enhanced fixture and cure times.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: January 21, 2003
    Assignee: Loctite Corporation
    Inventor: Eerik Maandi
  • High temperature, controlled strength anaerobic compositions curable under ambient environmental conditions
    Patent number: 6391993
    Abstract: The present invention provides anaerobic adhesive compositions, reaction products of which demonstrate controlled-strength at ambient temperature conditions and enhanced resistance to thermal degradation at elevated temperature conditions. The compositions are (meth)acrylate- and/or polyorganosiloxane-based and may include one or more of a variety of other components, such as certain coreactants, a maleimide component, a diluent component reactive at elevated temperature conditions, mono- or poly-hydroxyalkane components, and other components.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: May 21, 2002
    Assignee: Loctite Corporation
    Inventors: Shabbir Attarwala, Gina M. Mazzella, Hsien-Kun Chu, Dzu D. Luong, Lester D. Bennington, Mark M. Konarski, Eerik Maandi, Richard D. Rich, Natalie R. Li, Frederick F. Newberth, III, Susan L. Levandoski
  • Preapplied silicone threadlocker and sealant
    Patent number: 5853520
    Abstract: A curable composition, having utility for threadlocking engageable members of a threaded mechanical fastener, comprising: a reactive silicone (meth)acrylate emulsified in an aqueous medium, optionally further comprising a polymerizable non-silicone (meth)acrylate monomer or oligomer; and a microencapsulated peroxy initiator which is initiatingly effective for cure of the reactive silicone (meth)acrylate.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Loctite Corporation
    Inventors: Richard D. Rich, Eerik Maandi, Paula M. Gontarz, Hsien-Kun Chu
  • Preapplied silicone threadlocker and sealant
    Patent number: 5635546
    Abstract: A curable composition, having utility for threadlocking engageable members of a threaded mechanical fastener, comprising: a reactive silicone (meth)acrylate emulsified in an aqueous medium, optionally further comprising a polymerizable non-silicone (meth)acrylate monomer or oligomer; and a microencapsulated peroxy initiator which is initiatingly effective for cure of the reactive silicone (meth)acrylate.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: June 3, 1997
    Assignee: Loctite Corporation
    Inventors: Richard D. Rich, Eerik Maandi, Paula M. Gontarz, Hsien-Kun Chu
  • Anaerobic compositions which expand when post-cured
    Patent number: 5373075
    Abstract: An adhesive composition capable of post-cure expansion comprising a multifunctional (meth)acrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first cure heat stage wherein a rigid partially-cured plastic is formed and a post-cure heart stage to effectuate permanent expansion of the cured adhesive composition.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: December 13, 1994
    Assignee: Loctite Corporation
    Inventors: Eerik Maandi, Richard D. Rich
  • Anaerobic compositions which expand when post-cured
    Patent number: 5302679
    Abstract: An adhesive composition capable of post-cure expansion comprising a multifunctional methacrylate and a maleimide capable of effectuating expansion upon post-cure. A homogeneous mixture of a monomer and maleimide are subjected to a first cure heat stage wherein a rigid partially-cured plastic is formed and a post-cure heat stage to effectuate permanent expansion of the cured adhesive composition.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: April 12, 1994
    Assignee: Loctite Corporation
    Inventors: Eerik Maandi, Richard D. Rich