Abstract: Disclosed herein is a wholly aromatic polyester comprising the structural units represented by the formulae (A), (B), (C), (D), and (E) ##STR1## wherein R.sup.1 represents a halogen atom, a hydrocarbon group, an alkoxy group or a phenoxy group ##STR2## wherein A represents an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group, an alkylene group or an alkylidene group, or a single bond directly connecting the two benzene rings and R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 represent respectively a hydrogen atom, a halogen atom or a hydrocarbon group,the wholly aromatic polyester containing 5 to 50 mol % of the unit (A), 5 to 45 mol % of the unit (B), 5 to 45 mol % of the unit (C), 5 to 20 mol % of the unit (D) and 0 to 10 mol % of the unit (E), and the sum of the amounts of the unit (A) and the unit (B) and the sum of the amounts of the unit (C), the unit (D) and the unit (E) being substantially equimolar, and a process for producing the same.

Abstract: A process of obtaining a .alpha.-lactalbumin enriched product from whey of various origins is disclosed. A first ultrafiltration is carried out on unpasteurized raw whey with membranes having cut-off greater than 5,000 (e.g. 50,000) at a pH between 6.3 and 7 (e.g. 6.6) and a temperature between 30.degree. and 60.degree. C. thereby retaining whey proteins. The ultrafiltrate then undergoes a second ultrafiltration with a membrane capable of retaining .alpha.-lactalbumin (cut-off about 1,200 and 2,000) which is preferably diafiltration. Depending on whether starting whey is acid whey or sweet whey the resulting product may contain practically no CMP or some (e.g. 25%). The resulting product is useful as a mother's milk substitute, pharmaceutical, intensive care or therapeutic food, or tryptophan enriched nutrient.

Abstract: A disk spring also known as a Belleville spring is used for applications where stiffness of the spring is an essential requirement and where the usual disk springs made of metal cannot be used or are impractical to use. The disk spring of the invention consists of a body having the shape of a conical shell of elastically deformable material, such as plastic resin, and reinforcing elements within the shell to establish directed resistance to specific deformations occurring in the disk spring when axially loaded.In preferred embodiments of the invention, the reinforcing elements have the shape of bodies of rotation designed and positioned within the shell in configurations chosen to satisfy specific requirements of particular practical applications. The stiffness, the spring constant and the load carrying capacity which can be achieved are considerably higher than are obtainable with customary glass fiber reinforced plastic disk springs.

Abstract: A device is disclosed for use in demolishing a consolidated and hardened slurry body remaining in the form of a wall along the sidewalls of a hold in a ship or the like, being particularly useful in a wet-loading and dry-unloading method used in an iron-ore carrier which is loaded with iron-ore in a slurry state in its hold. For demolishing slurry walls, an arm having reciprocating edges at opposite ends thereof is extended downwardly from the deck of the carrier into the hold to thereby demolish the slurry walls. This device is removable and its essential parts are designed to be replaceable with other parts to accommodate different hold dimensions, so that use is practical in all carriers. The device alternatively may include a backdozer which also uses a reciprocating edge extending from its boom. The device disclosed here thereby provides for a safe and efficient demolishing operation without relying upon manual labor.