Pressure-sensitive nitrile-epoxy

Thermoplastic rubber block copolymers, with completely new adhesive performance, were developed in 1965 [21]. The first commercial product was Shell Chemical s Kraton 101, of styrene polybutadiene-styrene composition. This development led to the carboxy-terminated nitrile (CTBN) rubber modifiers used to flexibilize epoxy and other brittle resin adhesives in the late 1960s. Today, the thermoplastic rubber block copolymer adhesives are used in hot melt-, solvent- and water-based adhesives, and as hot melt- and solvent-based sealants. Major applications are as pressure-sensitive adhesives, construction adhesives and sealants, and general assembly adhesives. [Pg.18]

Uses Plasticizer, tackifler, processing aid in nitrile rubber tackifler in adhesives (hot-melt, hot-melt pressure-sensitive, pressure-sensitive) diluent, modifier in epoxy coatings rubber cements antiskinning agent in varnishes food pkg. adhesives, rubber articles Regulatory FDA 21 CFR 175.105,177.2600 Properties Gardner 8 liq. sol. in alcohols, esters, ethers, ketones (except acetone), and chlorinated, aromatic, naphthenic, and terpene hydrocarbons m.w. 250 sp.gr. 1.091 soften. (R B) pt. 12 C iodine no. (Wijs) 80 hyd. no. 200 flash pt. (COC) 365 F Nevoxy EPX-L [Neville]... [Pg.567]

Nitrile rubber is used preferably for contact adhesives with improved plasticizer resistance. Polyisobutylene is used in pressure-sensitive adhesives. Butyl rubber is sometimes added to pressure-sensitive and hot-melt adhesives, although it is mainly used in sealing compounds. Epoxy resins and reactive (meth)acrylate adhesives (reactive adhesives) are modified with polychloroprene, butyl, and nitrile rubber. Chlorinated rubber is added in small quantities to contact adhesives and also to rubber-to-metal bonding agents for improving the adhesion properties. [Pg.11]

Plastic foams. Some solvent cements and solvent-containing pressure-sensitive adhesives will collapse thermoplastic foams. Water-based adhesives, based on styrene butadiene rubber (SBR) or polyvinyl acetate, and 100 percent solid adhesives are often used. Butyl, nitrile, and polyurethane adhesives are often used for flexible polyurethane foam. Epoxy adhesives offer excellent properties on rigid polyurethane foam. [Pg.482]

Pressure Sensitive. Mixtures of nitrile rubber and epoxy resin have been described to be useful as pressure sensitive adhesives. One such system combines nitrile rubber, a bisphenol A type epoxy resin methacrylate ester, a product... [Pg.222]