METHODS OF MAKING VINYL ESTER RESINS AND STARTING MATERIALS FOR THE SAME
Various embodiments of the present invention relate to methods of making bis(hydroxyhydrocarbyl)ethers of bisphenols and vinyl ester resins. In various embodiments, the present invention provides a method for producing a vinyl ester resin (VER). The method can include a bisphenol or a bis(hydroxy((C1-C10)hydrocarbyl)ether of the bisphenol with a vinyl ester to form the VER.
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Paragraph 0072; 0073; 0074; 0075; 0076
(2017/07/14)
Environmentally benign synthesis of vinyl ester resin from biowaste glycerin
We present here for the first time a novel environmentally benign protocol for the synthesis of vinyl ester resin (VER). Our synthetic strategy utilizes a commercial waste material, glycerin, from biodiesel manufacturing and converts it into a widely utilized resin. The VER was synthesized using bisphenol A (BPA) and glycidyl methacrylate (GMA) as precursors. GMA was synthesized via a multistep synthetic protocol using glycerin obtained from a biodiesel manufacturing waste stream. The structure of the intermediates was confirmed by 1H NMR, HPLC and FT-IR spectroscopy.
Shah, Priyank N.,Kim, Namjoon,Huang, Zhuangrong,Jayamanna, Mahesh,Kokil, Akshay,Pine, Alex,Kaltsas, Jarmin,Jahngen, Edwin,Ryan, David K.,Yoon, Seongkyu,Kovar, Robert F.,Lee, Yongwoo
p. 38673 - 38679
(2015/07/07)
DENTAL MATERIALS AND METHOD OF MANUFACTURE
Dental materials may be made from polyhydric phenols that are non-genotoxic and exhibit estrogenic activity less than that of bisphenol S, while exhibiting properties such as strength and flexibility comparable to those of conventional BPA-derived dental materials.
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Paragraph 00104
(2014/03/21)
Low shrinking polymerizable dental material
The invention describes a low shrinking polymerizable dental material, comprising a mixture of a polymerizable resin, a polymerizable monomer, a polymerization initiator and/or sensibilizer and a filler in a content of about 20 to about 85 percent. The volumetric shrinkage during polymerization is less than about 1.5 Vol.- % due to its rheopex behavior.
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(2008/06/13)
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