novolac resin

novolac resin

[′nō·və‚lak ′rez·ən]
(materials)
Any of the thermoplastic phenol-formaldehyde resins made with an excess of phenol in the reaction; used in varnishes.
References in periodicals archive ?
Key statement: A tire component comprising a rubber composition having a highly unsaturated diene elastomer and a reinforcing filler with a first methylene acceptor selected from 3-hydroxydiphenylamine, 4-hydroxydiphenylamine or combinations thereof; a second methylene acceptor selected from a Novolac resin, diphenylolmethane, diphenylolethane diphenylolpropane, diphenylolbutane, a naphthol, a cresol or combinations thereof and a methylene donor.
In this study novolac resin and poly vinyl alcohol are used for the first time as anti-agglomeration agents for preventing urea agglomeration.
Abstract The present research work focuses on the mechanical, chemical, and curing characteristics of novolac resin based on renewable resource materials such as cardanol and furfural.
To overcome the challenges involved in installing flooring within this area, the MAIS team used fiberglass mesh reinforcement, epoxy novolac resin in each of the pits and the trenches and then completed the installation of a seamless monolithic surface from the top of the curbing to the floor drains.
Process for production of production of wood composites using a mixed pMDI/solid novolac resin binder.
ii) A trifunctional novolac resin, DEN 431, which is produced by Dow, having an epoxy equivalent weight of 172-179 and an average functionality of 2.
Waterborne 1K co-dispersions of several Epoxy Resin and Phenolic Novolac Resin combinations are available that offer different levels of performance.
The at least one silane can include a bis-amino silane, a vinyl silane, a bis-sulfur silane or mixtures thereof, and the polymeric resin may include an epoxy resin, acrylate resin, polyurethane resin, novolac resin, or mixtures thereof.
Mixed pMDI/solid novolac resin binders for the production of wood composite products.
2, 3] prepared boron-containing novolac resin by modifying commercial novolac resin with bis(benzo-l,3,2-dioxaborolanyl)oxide.
A fusible (meltable) novolac resin is formed by cooking a phenol and a for-maldehyde blend in a reactor where the amount of formaldehyde is "shorted.
Thus, a composition containing epoxy resins, a cresol novolac modified epoxy resin, a brominated phenol novolac resin, modified siloxanes, silica and other additives was blended, crushed into a powder, transfer injection molded and cured for eight hours at 175[degrees]C to give a product having good spiral flow and crack resistance after 500 cycles at +150[degrees]C and -196[degrees]C and also good solder resistance (failure after 72 hours in steam and the next 10 seconds in solder at 260[degrees]C).