Source: http://www.google.com/patents/US5912408?dq=5631832
Timestamp: 2017-05-23 21:09:47
Document Index: 603330595

Matched Legal Cases: ['application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 08', 'application No. 60']

Patent US5912408 - Dry cleaning with enzymes - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsEnzymes are used in a dry cleaning composition and process. Cleaning compositions comprising lipase, protease and/or amylase enzymes are applied to soiled fabrics in the presence of an organic solvent such as butoxy propoxy propanol to clean the fabrics. In a preferred mode, an enzyme-containing dry...http://www.google.com/patents/US5912408?utm_source=gb-gplus-sharePatent US5912408 - Dry cleaning with enzymesAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS5912408 APublication typeGrantApplication numberUS 08/789,171Publication dateJun 15, 1999Filing dateJan 24, 1997Priority dateJun 20, 1995Fee statusLapsedPublication number08789171, 789171, US 5912408 A, US 5912408A, US-A-5912408, US5912408 A, US5912408AInventorsToan Trinh, Michael Peter SiklosiOriginal AssigneeThe Procter & Gamble CompanyExport CitationBiBTeX, EndNote, RefManPatent Citations (125), Non-Patent Citations (37), Referenced by (51), Classifications (37), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetDry cleaning with enzymes
US 5912408 AAbstract
1. A method for cleaning fabrics in a hot air clothes dryer, comprising contacting said fabrics with an integral hydroentangled carrier sheet releasably containing a composition comprising:(a) at least about 0.001%, by weight, of a detersive enzyme; (b) from about 1% to about 30%, by weight, of an organic cleaning solvent which is a member selected from the group consisting of the monomethyl-, monoethyl-, monopropyl- and monobutylethers of propoxylated propanol, and mixtures thereof; (c) at least about 0.01%, by weight, of a polyacrylate emulsifier; (d) from about 0.05% to about 5%, by weight, of detersive surfactants; and (e) water. 2. An article for cleaning fabrics in a hot air clothes dryer, comprising an integral hydroentangled carrier sheet releasably containing a composition comprising:(a) at least about 0.001%, by weight, of a detersive enzyme; (b) from about 1% to about 30%, by weight, of an organic cleaning solvent which is a member selected from the group consisting of the monomethyl-, monoethyl-, monopropyl- and monobutylethers of propoxylated propanol, and mixtures thereof; (c) at least about 0.01%, by weight, of a polyacrylate emulsifier; (d) from about 0.05% to about 5%, by weight, of a detersive surfactant which is a member selected from the group consisting of amine oxides, alkyl ethoxy sulfates, ethoxylated alcohols. ethoxylated alkyl phenols, and mixtures thereof; and (e) water. Description
______________________________________     Grade            Optional     10244   Targets  Range______________________________________Basis Weight       gm/m2                 55       35-75Thickness   microns   355       100-1500Density     gm/cc     0.155     0.1-0.25Dry Tensile gm/25 mmMD                    1700      400-2500CD                    650      100-500Wet Tensile gm/25 mmMD*                   700       200-1250CD*                   300      100-500Brightness  %         80       60-90Absorption Capacity       %         735      400-900 (H2 O)Dry Mullen  gm/cm2                 1050      700-1200______________________________________ *MD  machine direction; CD  cross direction
______________________________________Ingredient       % (wt.)______________________________________Enzyme1     0.5PEMULEN TR-12            0.15BPP3        7.01,2-octanediol   0.5Surfactant Mixture4            0.50KOH              0.08Perfume          0.75Water and Minors5            Balance______________________________________ 1 Available from Novo as LIPOLASE. 2 PEMULEN TR2, B. F. Goodrich, may be substituted 3 Isomer mixture, available from Dow Chemical Co. 4 Mixture of MgAE1 S, MgAE6.5 S and C12 amine oxide, in the range of 1:1:1 to 0.5:1:1. A 1:1 to 2:1 mixture of MgAE1 S/C12 amine oxide can be used. 5 Includes preservatives such as KATHON ®.
______________________________________Ingredient         % (wt.) Formula Range______________________________________Lipase             0.001-3%Protease            0-3%Amylase             0-3%BPP*                5-25%1,2-Octanediol     0.1-7%MgAE1 S       0.01-0.8%MgAE6.5 S     0.01-0.8%C12 Dimethyl Amine Oxide              0.01-0.8%PEMULEN**           0.05-0.20%Perfume            0.01-1.5%Water              BalancepH Range from about 6 to about 8.______________________________________ *May be replaced by MPP, EPP or PPP. Other cosolvents which can be used herein together with the BPP, MPP, EPP and PPP primary solvents include various glycol ethers, including materials marketed under trademarks such as Carbitol, methyl Carbitol, butyl Carbitol, propyl Carbitol, hexyl Cellosolve, and the like. If desired, and having due regard for safety an odor for inhome use, various conventional chlorinated and hydrocarbon dry cleaning solvents may also be used.  #  Included among these are 12dichloroethane, trichloroethylene, isoparaffins, and mixtures thereof. **As disclosed in U.S. Patents 4,758,641 and 5,004,557, such polyacrylate include homopolymers which may be crosslinked to varying degrees, as well as noncrosslinked. Preferred herein are homopolymers having a molecular weight in the range of from about 100,000 to about 10,000,000, preferably 200,000 to 5,000,000.
______________________________________INGREDIENT      PERCENT (wt.)                        (RANGE)______________________________________Butoxypropoxy propanol (BPP)           7.000         4.0-25.0%NEODOL 23 - 6.5*           0.750         0.05-2.5%1,2-Octanediol  0.500         0.1-10.0%Perfume         0.750         0.1-2.0%Pemulen TR-1    0.125         0.05-0.2%Potassium Hydroxide (KOH)           0.060        0.024-0.10Potassium Chloride           0.075         0.02-0.20Water (distilled or deionized)           90.740        60.0-95.0%Target pH = 7.0______________________________________ *Shell; C12 -C13 alcohol, ethoxylated with average EO of 6.5.
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U.S. Classification8/142, 510/356, 510/434, 510/427, 510/351, 510/506, 510/426, 510/295, 510/505, 510/342, 510/281, 510/476, 510/320, 510/433, 510/350, 510/283, 510/282, 8/137International ClassificationC11D1/83, C11D3/386, C11D1/72, C11D1/75, C11D11/00, C11D3/20, C11D1/29, D06L1/04Cooperative ClassificationC11D1/72, D06L1/04, C11D3/386, C11D1/75, C11D1/29, C11D1/83, C11D3/2068European ClassificationC11D3/20C, C11D1/83, C11D3/386, D06L1/04Legal EventsDateCodeEventDescriptionJan 2, 2003REMIMaintenance fee reminder mailedJun 16, 2003LAPSLapse for failure to pay maintenance feesAug 12, 2003FPExpired due to failure to pay maintenance feeEffective date: 20030615RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services