In microcapsules with a polymeric capsule wall, the polymer of the capsule wall comprises thermolabile predetermined breaking points in the form of hexamethylenetetramine or acetaldehyde ammonia derivatives in order to facilitate release of the capsule contents (various active substances, such as example, dyes, medicaments, developers, curing agents, flameproofing agents) in a specific manner by e...

In micro-capsules with a polymer wall, the polymer of the capsule wall contains thermolabile and/or photolabile fracture points in the form of azo functions (-N=N-) or dioxy functions (-O-O-) to permit the contents of the capsule (various effective agents, e.g. dyes, medicaments, developers, curing agents, flame-protection agents) to be intentionally released under the action of temperature and/or...

PCT No. PCT/FI90/00145 Sec. 371 Date Nov. 27, 1991 Sec. 102(e) Date Nov. 27, 1991 PCT Filed May 24, 1990 PCT Pub. No. WO90/14873 PCT Pub. Date Dec. 13, 1990.First and second indirect contact condensing heat exchangers are used to separate gases from a mixture of condensible and non-condensible gases, such as the vapor from the last stage of a black liquor evaporation plant of a pulp mill. The mixt...

A selectively permeable membrane for the separation or enrichment of gaseous mixtures may be formed from amorphous polymers of perfluoro-2,2-dimethyl-1,3-dioxole, especially copolymers with a complementary amount of at least one of tetrafluoroethylene, perfluoromethyl vinyl ether, vinylidene fluoride and chlorotrifluoroethylene. Preferably, the polymer is a dipolymer containing 65-99 mole % of per...

PCT No. PCT/SE90/00336 Sec. 371 Date Nov. 27, 1991 Sec. 102(e) Date Nov. 27, 1991 PCT Filed May 21, 1990 PCT Pub. No. WO90/15184 PCT Pub. Date Dec. 13, 1990.A spray tube nozzle adapted to be cleaned during its operation. The nozzle includes a nozzle head having an inlet connectable to a conduit and an outlet for spraying liquid. Within the nozzle head is located a rotatable element defining a thro...

PCT No. PCT/GB90/00877 Sec. 371 Date Jan. 31, 1992 Sec. 102(e) Date Jan. 31, 1992 PCT Filed Jun. 6, 1990 PCT Pub. No. WO90/14894 PCT Pub. Date Dec. 13, 1990.An electrostatic spray apparatus, including a spray hood having an electrode. The hood defines a top region with a depending skirt and comprises first and second hood elements, either or both of which may comprise molded shells, with an electr...

The invention relates to oxidic heterogeneous catalysts based on nitrogen-containing polymers to which oxidic osmium is bonded in an oxidation number lower than the octavalent number, their use in converting olefinic bonds into vicinal diols and a process for such hydroxylation. The invention also relates to a process for manufacturing catalysts based on nitrogen-containing polymers on which osmiu...

In a gas-liquid contact apparatus, liquid is distributed onto packing media by vertical flow tubes mounted on a horizontal deck. Each flow tube has a beveled upper end, an upper portion above the deck provided with one or more vertical slots for admitting liquid into the tube, and a lower portion extending below the deck for releasing liquid onto the packing media. The lower portion of the tube ma...

PCT No. PCT/EP91/00472 Sec. 371 Date Nov. 12, 1992 Sec. 102(e) Date Nov. 12, 1992 PCT Filed Mar. 13, 1991 PCT Pub. No. WO91/13834 PCT Pub. Date Sep. 19, 1991.A method and an apparatus for treatment of liquid wastes from photographic processes are described, in which the wastes to be treated are (a) subjected to an oxygen oxidation as well as (b) an ozone oxidation, (c) optionally from the oxidized...

PCT No. PCT/EP89/01212 Sec. 371 Date Dec. 5, 1990 Sec. 102(e) Date Dec. 5, 1990 PCT Filed Oct. 12, 1989 PCT Pub. No. WO90/03839 PCT Pub. Date Apr. 19, 1990.An apparatus is disclosed for producing granules or pastils from a flowable material of varying viscosity wherein material is supplied to a pressing nip between a rotating hollow roll (1) having internal teeth and an externally toothed ejection...

PCT No. PCT/EP90/01387 Sec. 371 Date Mar. 30, 1992 Sec. 102(e) Date Mar. 30, 1992 PCT Filed Aug. 21, 1990 PCT Pub. No. WO91/02618 PCT Pub. Date Mar. 7, 1919.A soldering tool comprises a handle (10) and a rod-shaped or tubular heating element fastened to the front end of the handle. A soldering tip (4) can be placed on the free end of the heating element. The soldering tip (4) has a borehole for re...

A sheet steel strip which is wound to form lock seam tubing with helical seams has a projecting edge flange (2) along one longitudinal side and a closable channel (11) on the other longitudinal side, which slips onto the edge flange of the last turn during winding. The height (h) of the edge flange (2) is reduced by crease zones (4, 17) in the edge flange (2) and in the free flange (12) of the cha...

PCT No. PCT/FR90/00918 Sec. 371 Date Aug. 19, 1991 Sec. 102(e) Date Aug. 19, 1991 PCT Filed Dec. 18, 1990 PCT Pub. No. WO91/08894 PCT Pub. Date Jun. 27, 1991.A bending press is equipped with a movable lower platen actuated by at least three hydraulic jacks, two of which are placed at the lateral ends of the movable platen and at least one of which is placed at the center along the axis of the plat...

PCT No. PCT/GB89/01170 Sec. 371 Date Apr. 3, 1991 Sec. 102(e) Date Apr. 3, 1991 PCT Filed Oct. 3, 1989 PCT Pub. No. WO90/03740 PCT Pub. Date Apr. 19, 1990.A robot end effector (10) for holding a fabric workpiece (64) against a working surface (74) has a rigid backing member (11), a facing strip material (13) arranged to contact the workpiece (64) around its periphery and a resilient intermediate l...

PCT No. PCT/SE90/00378 Sec. 371 Date Nov. 26, 1991 Sec. 102(e) Date Nov. 26, 1991 PCT Filed May 31, 1990 PCT Pub. No. WO90/14930 PCT Pub. Date Dec. 13, 1990.In thread cutting and slotting, indexable inserts of hard metal are now used. Usually, the inserts used have been of triangular type. In order to improve cutting economy, implying improved positioning, closer tolerances and increased strength,...

PCT No. PCT/SE90/00379 Sec. 371 Date Nov. 27, 1991 Sec. 102(e) Date Nov. 27, 1991 PCT Filed May 31, 1990 PCT Pub. No. WO90/14916 PCT Pub. Date Dec. 13, 1990.In thread cutting and slotting, indexable inserts of hard metal are now used. Usually, the inserts used have been of triangular type. In order to improve cutting economy, implying improved positioning, closer tolerances, and increased strength...

The invention relates to an apparatus and method for automatic purification of extra-chromosomal DNA from a cell suspension using a reaction device (1) and comprising: means (36, 21, 4, 5, 6, 34, 39) for introducing the cell suspension from a container (20) into a reaction and/or mixing chamber (33), means (2) for agitating the contents of the chamber (33), means (36, 14, 15, 4, 6, 39) for introdu...

In a method and device for producing culture vessels 1 filled with micro - cultures of plant parts, a culture growth medium and sterilized water are mixed in such a ratio that the mixture takes a temperature in which selected plant parts will thrive. The selected plants are picked up after transport and several plant parts are placed in the mixture and the culture vessel 1 is sealed. The transport...

A novel lipase from a newly-discovered strain of Pseudomonas alcaligenes microorganism having (i) an optimum pH for activity of about 10+/-0.5; (ii) an optimum temperature for activity of about 45 DEG to 55 DEG C.; (iii) an optimum pH for stability of about 7.0+/-0.5; (iv) a molecular weight as measured by gel permeation chromotagraphy of about 8.8x104; and (v) chemical stability for at least 30...