Abstract: In a pack of substantially parallel-stacked transportable washers, at least two through-holes are provided in each washer, the two legs of a substantially U-shaped metal or plastic wire being positioned in the two through-holes of the stack of washers. The free ends of the legs projecting beyond the stack are bent over to positions oriented at approximately right angles to the respective legs. By appropriate force on the crosspiece, or on an extension, the wire is pulled back out of the stack of washers, the free ends being restraightened in the process.

Abstract: Epoxy resin compositions which containa) at least one epoxy resin containing, on average, more than one 1,2-epoxy group per molecule,b) an anhydride hardener for the epoxy resin a),c) a toughener, andd) a compound containing two active hydrogen atoms which is capable of reacting with the epoxy resin a) have an outstanding toughness and are suitable as casting resins, laminating resins, moulding compounds, coating compounds and encapsulation systems for electrical and electronic components.

Abstract: Curing a curable composition comprising(a) 90 to 50% by weight of a diglycidyl ether of hydrogenated bisphenol A, a diglycidyl ether of hydrogenated bisphenol F, or a mixture thereof,(b) 50 to 10% by weight of a cycloaliphatic epoxy resin consisting of formula I, II, III ##STR1## or a mixture thereof, wherein R.sub.1 and R.sub.2 are each independently of the other a hydrogen atom or methyl, m is an interger from 2 to 6, X is a group ##STR2## R.sub.3 is hydrogen or methyl and n is an integer from 2 to 4, and the radical R.sub.3 may have different meanings within the molecule and the mixture of components (a) and (b) is 100% by weight,(c) a cycloaliphatic polycarboxylic anhydride as hardener, and, as additional optional component,(d) a curing catalyst,gives moulding or coatings having valuable thermomechanical properties and enhanced resistance to hydrolysis and weathering.

Abstract: Flowable, curable mixtures based on bisphenol epoxy resins cured with anhydrides, and which are modified with di- or triglycidyl-hydantoin compounds, give cured mouldings with improved dimensional stability under heat while having at least unchanged flexibility.