摘要:
To provide a compact, sensitive comprehensive, two-dimensional gas chromatograph, a chromatographic column has first and second sections in series with each other to permit the flow of sample and a carrier through the first section and the second section. The retention time of the second section is less than the band resolution time of the first section. To control the wave fronts between the first and second sections, first and second heaters are positioned to heat and drive off sample collected at the outlet of the first section for collection in the second section and to heat sample collected at the inlet of the second section so that the first heater rapidly drives off sample for collection in the second section and then the second section rapidly drives off sample in a sharp wave front while the first section is accumulating another band for later movement into the second section.
摘要:
A practical device and method of performing comprehensive multi-dimensional chemical separation using a first dimension of a two-dimensional chromatograph to generate a chromatogram in a time comparable to or even faster than common practice while the second dimension generates multiple chromatograms each in a time comparable to the fastest prior art chromatography. The transfer of sample portions from the first dimension to the second dimension is by any one of several sample stream modulation techniques. These techniques accumulate portions of sample between the first and the second dimensions transferring them as very sharp concentration pulses analogous to fast injections, without loss of sample and with a substantial improvement in sensitivity.
摘要:
A freshening composition having a malodor control component, about 1% to about 5% of low molecular weight monohydric alcohols, and an aqueous carrier are provided. The composition is essentially free of any material that would soil or stain fabric. The composition may be delivered to fabrics and/or air. The malodor control component may include an effective amount of volatile aldehydes and/or an acid catalyst.
摘要:
Disclosed herein are novel mixtures of scattered-branched chain fatty acids and derivatives of scattered-branched chain fatty acids. Further disclosed are uses of these mixtures in cleaning compositions (e.g., dishcare, laundry, hard surface cleaners) and/or personal care compositions (e.g., skin cleansers, shampoo, hair conditioners).
摘要:
Roller for providing benefits to fabric. The present invention relates to utilizing one or more benefit agents in conjunction with a hand-held roller in order to provide one or more benefits to fabrics. The present invention also relates to a method for applying one or more benefit agents to the roller.
摘要:
Systems, devices, methods, and compositions that improve the scent perception for a user. Improved scent perception is achieved by presenting alternating scents and by varying levels of output of scents, as well as by minimizing device clogging, thereby improving evaporation profiles.
摘要:
A freshening composition having a malodor control component, about 1% to about 5% of low molecular weight monohydric alcohols, and an aqueous carrier are provided. The composition is essentially free of any material that would soil or stain fabric. The composition may be delivered to fabrics and/or air. The malodor control component may include an effective amount of volatile aldehydes and/or an acid catalyst.
摘要:
The present invention relates to perfume systems, products comprising such systems and the use of same. Unfortunately current perfume systems do not always provide the desired sensory experience. Thus there is a need for one or more perfume systems that obviate the short comings of the current perfume technologies. The systems of the present invention meet the aforementioned need as they employ symbiotic combinations.
摘要:
Air freshener products and methods for freshening air are disclosed. In some embodiments, the air freshening product may include a container for storing an air freshening composition that may contain a perfume composition or may contain a perfume composition in conjunction with a malodor counteractant. The container may contain a propellant such as a compressed gas, and a dispenser; and the air freshening composition. The method of freshening air, in certain embodiments, delivers a consistent perfume release profile. If malodor counteractants are used, the method may also provide a reduction in malodors.
摘要:
Detergent compositions comprising high efficiency lipase enzymes and particles comprising encapsulated perfumes. Preferred perfumes have a boiling point at 760 mm Hg, of 260° C. or lower and a calculated CLogP of at least 3.0. The encapsulated perfume particles are useful in laundry compositions in order to provide efficacious perfume delivery at all stages of the wash, particularly during the laundering stage.