Claisen rearrangement over the past nine decades.

Compositions comprising one or more polymeric suds volume and suds duration enhances which are mild on the user's skin. The polymeric suds enhances are suitable for use in methods which in use as compositions light duty liquid, LDL compositions, hand dishwashing compositions, laundry bars, personal cleansing compositions and the like.

Detergent compositions comprising polymeric suds enhancers which have improved mildness and skin feel

The present invention relates to a block polymeric material. Typically the block polymer comprises units capable of having an average cationic charge density of about 15 or less, preferably 5 or less, more preferably from about 0.05 to about 5, even more preferably from about 0.05 to about 2.77, even more preferably from about 0.1 to about 2.75, most preferably from about 0.75 to about 2.25 units per 100 daltons molecular weight at a pH of from about 4 to about 12. The polymeric material is a suds enhancer and a suds volume extender for personal care products such as soaps and shampoos. The compositions have increased effectiveness for preventing re-deposition of grease during hand and body washing. The polymers are also effective as a soil release agent in fabric cleaning compositions. The polymeric material is also effective in oil well treating foam, fire-fighting foam, hard surface cleaning foam, shaving cream, post-foaming shaving gel, dephiliatories and as a coagulant/retention aid for titanium dioxide in paper making.

Block polymers, compositions and methods of use for foams, laundry detergents, shower rinses and coagulants

A dispensing device for use in combination with a clothes dryer wherein the device is designed to uniformly treat fabric. The invention further relates to a method for treating a fabric article in need of treatment that combines a clothes dryer and liquid dispensing system designed to uniformly treat fabric.

Fabric article treating method and apparatus

A process for imparting lubricity to an aqueous drilling fluid used in geological exploration involving: (a) providing an aqueous drilling fluid; (b) providing a lubricant component containing a partial glyceride of predominantly unsaturated fatty acids having from about 16 to 24 carbon atoms; and (c) introducing the partial glyceride into the aqueous drilling fluid

Lubricants for drilling fluids

Es werden die Verwendung von kationischen Polymeren, die Monomereinheiten der Formel (I), worin n eine Zahl zwischen 2 und 4, bevorzugt 3, ist, R1 fur Wasserstoff oder eine Methylgruppe steht und R?2, R3 und R4? gleich oder verschieden sein konnen und fur Wasserstoff oder eine C?1-4?-Alk(en)ylgruppe stehen, X?-? ein Anion aus der Gruppe der Halogenidanionen oder ein Monoalkylanion der Schwefelsaurehalbester reprasentiert, enthalten, als Soil-Release-Verbindungen in Reinigungsmitteln fur harte Oberflachen sowie Reinigungsmittel fur harte Oberflachen beschrieben Die kationischen Polymere beeinflussen bei der manuellen Reinigung von harten Oberflachen die Schmutzablosung und Stabilisierung des abgelosten Schmutzes positiv Die Polymere zeigen eine erhohte Anhaftungstendenz an der Oberflache und verbessern das Reinigungsvermogen des sie enthaltenden Reinigungsmittels

Reinigungsmittel für harte Oberflächen

A novel type of ketene-Claisen rearrangement in which the precursor of the rearrangement is generated in situ by reaction of optically active allyl thioethers with dichloroketene is described. A characteristic feature of this rearrangement is the excellent chemoselectivity in favor of allyl thioethers vs. allyl ethers, i.e., exclusive chirality transfer of the allylic sulfur moiety is observed with 12, 13, and 25--27. The cyclic, optically active allyl thioethers (+)-(R)-4 and (−)-(S)-4 and the open-chain allyl thioethers 11--13 rearrange with in situ generated dichloroketene to the optically active thioesters (−)-(S)-28, (+)-(R)-28, and 31-33, respectively. A chirality-transfer of > 99% in the cyclic cases (+)-(R)-4 and (−)-(S)-4, and 96--98 % in the open-chain cases 11--13 is observed. Furthermore, the dichloroketene-Claisen rearrangement is characterized by a high asymmetric 1,2-induction. The chiral allylic sulfides 25--27 give the optically active thioesters 36--38 with a 1,2-induction > 99% as determined by NMR-shift experiments.

Investigation of the Chemo‐ and Stereoselectivity of the Ketene‐Claisen Rearrangement

The invention relates to a liquid fabric conditioner for fabric care and to the use of the conditioner in a washing or laundry drying process, to a conditioning substrate containing a liquid fabric conditioner, and to a conditioning process using the conditioning substrate in a laundry drying process. The liquid fabric conditioner and conditioning substrate are used to reduce fluff formation and pilling.

Conditioning preparation for fabric care

The description relates to the use of at least largely water-insoluble ethers of mono and/or polyfunctional natural or synthetic alcohols which are liquid and/or at least plastically deformable at working temperature and have flash-points of at least 80°C, or corresponding solutions of such ethers in ecologically acceptable water-insoluble oils as the dispersed oil phase of water-based O/W emulsion drilling fluids which are suitable for the environmentally acceptable exploitation of geological formations and may, if desired, contain insoluble, finely divided fillers for producing water-based O/W emulsion drilling muds and/or further additives like emulsifiers, fluid-loss additives, wetting agents, alkaline reserves and/or aids for the inhibition of highly water-sensitive drilled rock.

Use of selected oleophilic ethers in water-based drilling fluids of the o/w emulsion type and corresponding drilling fluids with improved ecological acceptability

The invention relates to silicic-acid esters of formula (I) in which R?1 and R4? are selected, independent of one another, from the group of straight-chain or branched, saturated or unsaturated, substituted or non-substituted C?1?-C6 hydrocarbon radicals and of the aromatic alcohol radicals. Each R?2 and R3? is selected, independent of one another, from the group of aromatic alcohol radicals, and n takes on values between 2 and 20. These esters of oligo silicic acids comprising aromatic alcohols are characterized by having a good hydrolytic stability and can also be used in aqueous media or in processes for producing granulates without resulting in excessive losses in activity. In addition, these esters, when mixed with other aromatics, also prolong the fragrance of the aromatics which are not bound in the silicic-acid ester.

Rainer Jeschke

Papers

Reinigungsmittel für harte Oberflächen

Investigation of the Chemo‐ and Stereoselectivity of the Ketene‐Claisen Rearrangement

Conditioning preparation for fabric care

Use of selected oleophilic ethers in water-based drilling fluids of the o/w emulsion type and corresponding drilling fluids with improved ecological acceptability

Silicic-acid esters