American Hospital Supply Corporation

Providence Plantations

The Board of Governors for Higher Education, State of Rhode Island

Thomas J Rockett

John J O'Connell

John S Tiffany

Vincent C Rose

Rachel Marino

A polyester coating applied to gel coated fiber reinforced plastic. The pester coating prevents blistering of the gel coat.

Method of preventing gel coat blistering in fiber glass reinforced

A method for forming a layered dental restoration in which there is a continuous polymeric resin phase but in which the reinforcing filler compositions of the respective layers are different. A sub-layer, composed of a polymeric resin binder having a refractive index within the range of about 1.53 to 1.56, in admixture with suitable catalysts and a finely-divided reinforcing inorganic filler having a refractive index substantially different than that of such resin, is first applied to the site of restoration and, before the sub-layer has fully cured, a surface layer composed of the same resin and catalysts but a different inorganic filler is applied to the site over the sub-layer. The filler of the surface layer consists essentially of a finely-divided inorganic material having substantially the same refractive index as that of the resin common to both layers.

Method for dental restoration

An improved composite material for use as a dental restorative in which the major component consists of a finely-divided reinforcing filler having a hardness no greater than about 5.0 on the Moh's scale. Despite the relative softness of such a filler, in contrast to fillers conventionally used in dental composites, the final restoration has superior resistance to abrasion and wear, can be finished more effectively and more aesthetically, and can be handled with metal dental instruments.

Composite for dental restorations

A radio-opaque composite material for use as a dental restorative which consists essentially of a conventional polymerizable resin binder and catalysts in admixture with a finely-divided inorganic filler capable of being coupled to the binder. The filler comprises a crystalline silicate containing barium in the crystalline composition. Calcium barium silicate in crystalline form is set forth in disclosing the best known mode for practicing the invention.

Growing community of inventors

East Greenwich, RI, United States of America

Thomas J Rockett