Abstract: The present invention provides high temperature sealing glass compositions for use in producing mechanically and chemically durable electrically insulating hermetic glass seals between materials such as zirconia, alumina, fosterite, steatite, carbon steels, stainless steels, and superalloys. High temperature sealing glass compositions according to the present invention include a glass component and optional vehicles. The glass component includes one or more glass frits containing in weight percent from about 17% to about 56% BaO+SrO, from about 18% to about 60% SiO.sub.2, from about 6% to about 36% B.sub.2 O.sub.3, from about 2% to about 32% Al.sub.2 O.sub.3, from about 0% to about 25% CaO plus MgO, from about 0% to about 20% Y.sub.2 O.sub.3, from about 0% to about 7% ZrO.sub.2, from about 0% to about 3% alkali oxides, from about 0% to about 5% Co.sub.3 O.sub.4, from about 0% to about 5% NiO, and from about 0% to about 3% MoO.sub.3.

Abstract: Improved, low modulus glass fibers for the production of glass fiber reinforced, high energy absorption resin laminates, said glass having a modulus of elasticity of from about 5.0 to about 6.5 .times. 10.sup.6 psi, the composition of said fibers being generally of the alkali borosilicate type, the major portion thereof comprising from about 40-65 weight percent SiO.sub.2, 24-38 weight percent B.sub.2 O.sub.3, and 5-20 weight percent alkali.A high energy absorption resin laminate comprising the combination of a plastic resin composition reinforced with said fibers.