Abstract: A peelable adhesive structure comprises a plurality of articles, including at least one metal article, bonded together through a composite coating layer. The composite coating layer comprises adjacent first and second coating layers, the first coating layer containing vinyl resin, and the second coating layer containing epoxy resin. At least one of the coating layers comprises:(a) a peeling imparter at a concentration of between about 50 and 200 parts by weight per 100 parts of resin, and(b) a substantially linear saturated polyester wetting improver at a concentration of between about 2 and 50 parts per 100 parts of resin and having a molecular weight of between about 5,000 and about 50,000.Alternatively, at least one of the coating layers comprises a hydrocarbon or natural resin having a softening point less than 180.degree. C. and having a concentration between about 50 and 200 parts per 100 parts of resin.

Abstract: A peelable bonded structure having a peel strength of 0.05 to 5 kg/cm comprises a plurality of articles, at least one of which is made of metal, bonded together through a composite coating layer. The composite coating layer is composed of adjacent first and second coating layers at least one of which comprises (A) a modified olefin resin having a carbonyl group concentration of 0.01 to 200 milliequivalents per 100 g of the olefin resin and (B) a coating film-forming base resin at an (A)/(B) weight ratio of from 0.2/99.8 to 40/60 and has a multi-layer distribution structure having resin concentration gradients in the thickness direction such that the modified olefin resin (A) is distributed predominantly in the portion contiguous to the interface between the two coating layers and the base resin (B) is distributed predominantly in the opposite portion.

Abstract: Disclosed herein are containers useful for holding fluids, e.g. photographic processing materials, in photographic film units. Such containers have strong seals along certain marginal areas and relatively weak seals along other marginal areas. Such weak seals are designed to open and distribute fluid over a sheet of film or paper when pressure is applied to the container in a camera. Each weak seal is formed from a sealing composition comprising a copolymer of (a) at least about 50 percent, by weight, of a polymerizable monomer having the formula (I): ##STR1## wherein n is an integer of from 0 to 3; R.sup.1 is hydrogen or alkyl; and R.sup.2 is hydrogen, alkyl or phenyl; with (b) a copolymerizable monomer having the formula (II): ##STR2## wherein R.sup.3 is alkyl. This copolymer has a glass transition temperature of at least about 80.degree. C.

Abstract: Mineral fillers reactable with acids such as metal carbonates such as CaCO.sub.3 are rendered more compatible with polyolefin resins such as polyethylene by first reacting the filler with a long chain carboxylic acid to form a surface film of the acid. The acid reacted filler is contacted with a vinyl ester of the acid which is then polymerized in the presence of a free radical catalyst such as benzoyl peroxide to encapsulate the acid reacted filler in a coating of the polymerized ester.

Abstract: A crown closure having a polyolefin liner that can be readily removed, said crown closure comprising a crown shell having a primer layer on its inner surface and a polyolefin liner applied to the inside of said crown shell, characterized in that said primer layer is a two-component priming consisting of an undercoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene .Iaddend.and a topcoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene .Iaddend.and at least one other compatible resin, with the provision of a printing layer of indicia at the interface between said undercoat and topcoat layers or atop said topcoat layer. Aforesaid crown closure can be prepared by providing at one face of a metal stock sheet a primer undercoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene.Iaddend., printing indicia thereon, providing atop said undercoat layer a primer topcoat layer containing .[.a polyethylene oxide.]. .Iadd.