Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-12-28
2003-09-23
Boyer, Charles (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S296000, C229S307000, C229S313000, C229S316000, C383S200000, C383S207000, C383S208000, C383S038000
Reexamination Certificate
active
06624130
ABSTRACT:
BACKGROUND OF THE INVENTION
Recently, laundry tablets, a different product form for laundry washing, have been introduced commercially and well received by consumers. This is believed to demonstrate the desirability of unit dose products which can be tossed into the washing machine. The popularity of another form of laundry product, liquid detergents, can be attributed in part to the ability of consumers using such products to pretreat selected areas of clothing which are deemed to require a higher level of cleaning. A disadvantage of laundry tablets is that the option of pretreating selected areas of clothing is not available to consumers in this product form.
Various laundry products in single or dual compartment pouches, or in dual chambered bottles or have been disclosed over the years.
Muysson, U.S. Pat. No. 5,164,178 discloses solid granular deodorant consisting of hydrated calcium sulfate base, essential oils absorbed onto the granular base and micro capsules filled with another portion of essential oils. The granular deodorant is packed in a sealed pouch which has micro holes covered by a removable adhesive tape.
A laundry cleaning gel product is sold in Europe in a water-soluble pouch. The base is vacuum-formed, filled, and then sealed with a “lidding” film.
Peterson et al., U.S. Pat. No. 5,776,877 is directed to a liquid peracid precursor composition for delivering a bleaching and cleaning material in which the composition combines a dispersant medium which includes an emulsifier and a dispersed phase that comprises the peracid precursor. A bottle or container comprised of two chambers may be used.
Scheuing et al., U.S. Pat. No. 5,681,805 discloses a bottle having two chambers for a liquid peracid precursor composition.
Dunlop et al., U.S. Pat. No. 3,198,740 discloses a package of a water-soluble film of polyvinyl alcohol filled with detergent composition. The compositions which are filled in the water-soluble packets are non-liquid, water-soluble synthetic detergents which contain sodium tripolyphosphate and a hydrated salt. Generally such compositions contain one or more anionic synthetic organic detergents. Other ingredients to be filled in the water-soluble packets can be inorganic builders in addition to sodium tripolyphosphate suds builders, alkali metal silicates, bleaching ingredients, and other minor ingredients such as pigments, dyes, perfumes, redeposition inhibitors, optical fluorescers, tarnish inhibitors and other useful additives.
Bianco et al., U.S. Pat. No. 3,374,195 relates to polyvinyl alcohol compositions containing a plasticizer, and to plasticized polyvinyl alcohol films produced therefrom. Use of polyvinyl alcohol films in the manufacture of watersoluble bags or pouches for such materials as detergents, bleaches, insecticides, etc. is mentioned. The package may be dropped in hot or cold water wherein the bags disintegrate and the products are dispensed.
Gray, U.S. Pat. No. 3,528,921 discloses a bleaching packet wherein a dry bleach composition is contained in a packet of water-soluble polyvinyl alcohol film. In use, the entire packet is dropped into a washing machine containing water and clothes to be bleached without any need for pre-measuring by the person doing the washing. The product container, i.e., the polyvinyl alcohol film, is said to contribute considerable soil anti-redeposition properties to the system and thus the packets are said to be especially suited for use in conjunction with soap and detergent products in connection with the washing and bleaching of soiled clothes.
Kerry et al., U.S. Pat. No. 4,681,228 is directed to toxic products situated in a closed inner container consisting of a water-soluble flexible material, the inner container being placed within a closed container consisting of a flexible material which is resistant to water. In order to release the packed substance, the outer container is cut open and the inner container is deposited in water with a film of the inner container and the toxic filling dissolved. Toxic substances are substances, such as agricultural chemicals, which must not come into contact with the human body, both during the filling and packaging and during the transport of the packages and release of the toxic substances from the packages. The water-soluble material is, for example, polyvinyl alcohol and it is filled with a water-soluble toxic powder or granular product. A tear line 7 is included.
Ball, U.S. Pat. No. 3,737,027 is directed to a composite pack for a two component hardening resin comprising two flexible frangible containers, one within the other. The pack is for stabilizing and reinforcing rock formations and for securing elements in bore holes.
Clarke et al., U.S. Pat. No. 4,188,304 discloses a detergent product which comprises a particulate detergent composition contained within a closed waterinsoluble bag which has a water sensible seal. The contents of the bag are discharged on contact of the bag with water. It is said that, if desired, the bag can be formed with more than one separate compartment for different detergent ingredients, or the bags may be formed in a conjoined manner, for instance in a strip to facilitate dosing of different numbers of the bag as appropriate for the wash conditions. It is said that any detergent composition in powder form can be packaged to advantage in the product of the '304 invention.
Davies et al., U.S. Pat. No. 4,410,441 discloses a fabric treatment product which is in the form of a bag having at least two compartments containing particulate fabric treatment compositions. The bag has a first outer wall and an intermediate wall of water insoluble, but water permeable material, and a second outer wall of water impermeable water insoluble plastic sheet. In the washing machine, the wash water first enters the compartment bounded by the first outer wall which is water permeable and dissolves and disperses out its contents. The water subsequently penetrates the intermediate wall to enter the second compartment and dissolve or disperse out its contents. The first compartment may, for instance, contain detergent whereas the second compartment may contain fabric softener.
Cornelissens et al., U.S. Pat. No. 4,622,161 is directed to a dosing unit comprising a detergent and/or bleaching agent contained in a sachet which entirely or partly consists of a sealable substrate and is provided with one or more seams that are sealed with a water sensitive coating composition. It is said that the moment at which the sachet opens up is to a great extent independent of the agitation and heating up behavior of the dishwashing machine. This is obtained by using a coating composition comprising an anionic and/or nonionic water binding polymer and a cationic polymeric adhesive.
Anderson et al., U.S. Pat. No. 4,776,455 is directed to a multi compartment sachet product for the washing machine or dishwasher comprising a first compartment capable of releasing its contents (solid or liquid) within three minutes from the start of the wash process and a second compartment of water permeable material with a pore-occluding coating and/or in the form of a sachet so that the release of its contents (powder), is gradual and is delayed for at least five minutes from the restart of the wash process. The seal of the first compartment may be, for example, sensitive to water temperature or agitation such as the mechanically weak heat seal of EP 11500 or EP 40931.
Oakley, U.S. Pat. No. 2,760,942 discloses a heat sealing coating composition which is water soluble. The compositions contain polyvinyl alcohol and at least one of urea and dextrose. Bond strengths ranging from poor to good, are given for various coating formulations. In one case, a slight seal is obtained. Bond strength in g/in is given for various runs. It is said that packaging films sealed in accordance with the invention can be used to package detergents, food stuffs, etc.
Schwadtke et al, U.S. Pat. No. 4,139,475 is directed to a laundry treatment agent for use in a mechanical laundry dryer comprising a paste of fabr
Giblin Edward John
Hsu Feng-Lung Gordon
Mc Donald Janet
Raible Duane Anthony
Saso Corinne
Boyer Charles
Stein Kevin J.
Unilever Home & Personal Care USA , division of Conopco, Inc.
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