摘要:
Novel laminates are prepared by a process comprising applying to a surface of a first substrate a binding amount of a linear, acylated polyalkylenepolyamine having a weight average molecular weight of at least about 10,000 as an intermediate binding layer and subsequently applying to the layer a surface of a second substrate. For example, polyethylene film is bonded to paper by an intermediate binding layer of poly(N-propionyl)ethylenimine.
摘要:
Modified, regenerated cellulosics having good receptivity to acid dyes are prepared by introducing a poly-2-alkyl-2-oxazoline, such as poly-2-ethyl-2-oxazoline, having a weight average molecular weight of at least about 10,000 into an aged, cellulose-xanthate solution and forming modified, regenerated cellulosics therefrom. These cellulosics exhibit rapid and quantitative acid-dye absorption and good dye fastness.
摘要:
Dermatitis caused by exposure of the skin to a plant of the genus Rhus is treated and controlled by the topical application of an effective amount of a polyamine or polytertiaryamide.
摘要:
Wherein R is alkylene (C2-C20), arylene (C6-C10), alkyl-arylene (C7-C15), alkyl- (C1-C10) or aryl- (C6-C10) thiopolyether; or R and with it X, can be void; R'', R'''', Q'' and Q'''' are, independently in any occurrence, hydrogen or alkyl (C1-4) or R'' can be phenyl; Q in any occurrence is independently hydrogen, methylol, or WHEREIN G is alkyl (C1-20) or phenyl; and n is zero or 1, and y designates the molar abundance of monomer for a desired degree of polymerization; and y designates also that degree of polymerization: the substances polymerize without catalysis to obtain polyamides with useful resinous properties.