Abstract: A necktie includes a single-piece tie defining a display area and a knot area with the display area having a given pattern and the knot area having a pattern different from the given pattern. The one-piece tie can be woven or printed to produce the patterns. The tie can have a single-piece display-knot portion and a single-piece tail portion to be joined together. The tail portion can have a pattern, preferably, the same as the given pattern. A method of constructing a necktie includes cutting a tie from a single-piece of fabric having a given pattern at a display area and a pattern different from the given pattern at a knot area. The tie is folded lengthwise and is connected together at long edges. The edge-connected tie is turned inside out. Also, a single-piece display-knot portion can define the display and knot areas with the display-knot portion joined to a tail portion also preferably cut from a single-piece of fabric.

Abstract: A necktie includes a single-piece tie defining a display area and a knot area with the display area having a given pattern and the knot area having a pattern different from the given pattern. The one-piece tie can be woven or printed to produce the patterns. The tie can have a single-piece display-knot portion and a single-piece tail portion to be joined together. The tail portion can have a pattern, preferably, the same as the given pattern. A method of constructing a necktie includes cutting a tie from a single-piece of fabric having a given pattern at a display area and a pattern different from the given pattern at a knot area. The tie is folded lengthwise and is connected together at long edges. The edge-connected tie is turned inside out. Also, a single-piece display-knot portion can define the display and knot areas with the display-knot portion joined to a tail portion also preferably cut from a single-piece of fabric.

Abstract: A necktie has a central knot portion being positioned between a display portion and a tail portion. In one version, the warp angle of the knot portion is rotated ninety degrees from the warp of the display portion so that the stripes on the knot will be aligned with the corresponding stripes on the display portion when the tie is worn. In other embodiments, the knot portion is a different color or pattern from the display portion to permit coordinating or contrasting or styles between the knot and display portion. In yet another embodiment, the knot portion is made selectively replaceable at the discretion of the user to permit mix and match freedom.

Abstract: A process for preparing azetidinones of the formulae 1 and 2A and the stereoisomers of the latter of formula 2B ##STR1## wherein R is an amino-protecting group commonly used in penicillin chemistry and is selected from the group consisting of H, C.sub.1 -C.sub.6 alkyl, phenyl, (optionally substituted in the o-, m-, or p- positions by CH.sub.3, F, Cl, OCH.sub.3, or a nitro group), benzyl, 2-thienylmethyl, tetrazol (1-, 2-, or 5-)-ylmethyl, 2-phenyl-5-methylisoxazol-4-yl, phenoxymethyl, and R.sup.5 O-- and R.sup.5 S, wherein R.sup.5 stands for C.sub.1 -C.sub.6 alkyl, phenyl, benzyl or trichloroethyl; it should be noted that the value of R is immaterial to the process described;X is selected from the group consisting of H, SCl, SBr, Cl, Br, and OH. In the case where X is OH the group RCX.dbd.N-- is better represented as the amide, RCONH--, group;RCX.dbd.N may also represent the phthalimido, succinimido-, or tritylamino- group;R.sup.