US3663449A - Molding synthetic detergent superior in mechanical strength and containers molded therefrom - Google Patents

Molding synthetic detergent superior in mechanical strength and containers molded therefrom Download PDF

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Publication number
US3663449A
US3663449A US33470A US3663449DA US3663449A US 3663449 A US3663449 A US 3663449A US 33470 A US33470 A US 33470A US 3663449D A US3663449D A US 3663449DA US 3663449 A US3663449 A US 3663449A
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United States
Prior art keywords
detergent
container
mechanical strength
synthetic
molded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US33470A
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English (en)
Inventor
Rinnosuke Susuki
Hiroshi Hoshi
Jiro Saito
Kiyoshi Moriki
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Lion Fat and Oil Co Ltd
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Lion Fat and Oil Co Ltd
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Publication date
Application filed by Lion Fat and Oil Co Ltd filed Critical Lion Fat and Oil Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0052—Cast detergent compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2041—Dihydric alcohols
    • C11D3/2044—Dihydric alcohols linear
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols

Definitions

  • FIG 5 United States Patent 3,663,449 MOLDING SYNTHETIC DETERGENT SUPERIOR IN MECHANICAL STRENGTH AND CON- TAINERS MOLDED THEREFROM Rinnosuke Susuki, Tokyo, Hiroshi Hoshi, Narashino-shi,
  • the present invention relates to a synthetic detergent superior in mechanical strength and containers molded therefrom and, more particularly, to a synthetic detergent which is not likely to be crushed to powder when granulated and which is resistant to external forces such as tension, compression and bending and thus not subject to rupture when molded and containers molded therefrom.
  • the conception mechanical strength of synthetic detergents has been hitherto regarded as a synonym of the term crushing strength of their grains. This is reasonable because the use of powdery synthetic detergents as structural materials is quite beyond imagniation.
  • the applicant molded a synthetic detergent slurry, regarding it as an equivalent to a molten synthetic resin, into plate, rod, or structures of any other desired geometry and applied such structures to containers for accommodation of a detergent.
  • the present invention relates to a detergent as a structural material and provides a detergent superior in mechanical strength.
  • FIG. 1 is a perspective view of one embodiment of the molded container according to the present invention
  • FIG. 2 is a perspective view of another embodiment
  • FIG. 3 is an appearance view of a detergent container molded from the composition according to the present invention
  • FIG. 4 is a side sectional view of the container of FIG. 3
  • FIG. 5 is a side sectional view of another embodiment of the detergent container.
  • One feature of the detergent according to the present invention is a high sodium silicate content. Compared to over to at most sodium silicate as is the case with conventional detergents, it contains to 9.5% sodium silicate.
  • Another feature of the detergent according to the pre- 3,663,449 Patented May 16, 1972 sent invention is that it contains 1 or more percent polyhydric alcohol such as glycerine or ethylene glycol. It was found from experiments that the mechanical strength remarkably changes at approx. 3 polyhydric alcohol and attains its maximum at 4 to 5% and that it does not vary so much with additionally increased polyhydric alcohol contents. The water solubility of the detergent decreases as the content of polyhydric alcohol increases. In addition, the polyhydric alcohol is relatively expensive. Therefore, it is not profitable to add it in larger amounts.
  • polyhydric alcohol such as glycerine or ethylene glycol
  • the reduction of solubility with higher contents of the polyhydric alcohol can be compensated for to some extent by adding a corresponding amount of foaming agent so as to render the molded product cellular, but it is to be noted that the addition of a foaming agent is not a requisite for the composition in question.
  • EXAMPLE 1 1) Composition: Percent ABS-Na 16 Sodium silicate 57 Sodium sulfate 25.5 Foaming agent 0.5 Glycerine 1 (2) Shape: Sphere of approx. 2 mm. in diameter when foamed at 150 C. after granulated by stirring. (3) Mechanlcal strength: Crushed with a static load of approx. 150 g. on the average. (Note: Approx. 2.30 g. on the average for conventional synthetic detergents.)
  • EXAMPLE 2 (1) Composition: Percent LAS-Na 16 Sodium silicate 55 Sodium sulfate 26 Ethylene glycol I 3 (2) Shape: Sphere of approx. 2 mm. in mean diameter.
  • Clothes basket or the like have been used as containers for washing. Usually in the home, the washing is placed in such a determined container and, when to be washed, transferred therefrom into a washing machine. Then some detergent is separately added. According to the present invention, on the contrary, the washing can be put into the washing machine together with its container, for the container itself is made of detergent. Therefore, the washer need not add any detergent separately.
  • FIG. 1 shows a container 1 embodied according to the present invention.
  • the container 1 is provided with many windows 2. By the provision of these windows 2, the total weight of the container can be reduced and at the same time the mass of the container can be adjusted to suit to the quantity of the washing.
  • the detergent slurry according to the present invention can be molded just like molten synthetic resins. It was found that compression molding, injection molding, or other molding methods are applicable thereto with some modifications. Furthermore, the molded products can be bonded by heat or with adhesives as for polyolefine sheets. Hence, it is also possible to mold the basket-like container shown in FIG. 1 in sections and thereafter bond the sections to form a desired container, if it is impossible to be molded at a time. Besides the possibility of being molded like synthetic resins, the composition according to the present invention can include a foaming agent.
  • FIG. 2 shows an embodiment of the foam molded container. This container has a great number of cells 3 in the walls and shows increased solubility to water, thus permitting improved behaviour for the abovementioned purpose. These cells 3 also play the part of adjusting the mass of the detergent constituting the container in the same way as the windows 2 of the first embodiment in FIG. 1.
  • FIGS. 3, 4 and 5 containers for detergent as other examples of the container molded from the composition according to the present invention will be explained.
  • Detergents especially powdery synthetic detergents, are normally on the market in cartons, plastic buckets or plastic bags. While these containers have their own merits and features, they serve only as packages. After they have played their part in storage, transportation and marketing display, they become a mere waste when the content has been exhausted by the consumer.
  • the present invention provides a detergent package made of detergent itself and adapted to be used as the detergent in proper sections after the content has been exhausted.
  • a hollow prismatic container reinforced by ribs 11a is designated at 11 and a cover at 12.
  • the container itself is made of detergent.
  • the detergent according to the present invention is compression or injection molded at 80 C. to 180 C. using a metal mold having a cavity of desired shape.
  • a nitrogen-series foaming agent of the toluenesulfonyl hydrazide or azodicarbonamide type is added to the material in an amount of 0.1 to 5% and the resultant material is molded in the same manner as above, a container of cellular structure as shown in FIG. 5 at 101 with a cover at 102 can be obtained.
  • the container 11 or 101 is filled with such powdery synthetic detergents that are on the market at present or granular, hollow-block or multilayer synthetic detergents invented by the present inventors and applied separately for a patent, or the detergent slurry, and then the cover 12 or 102 is fixed.
  • the cover 12 may be fixed to the container 11 with an adhesive 13 or they may be bonded by heat. Since the composition is capable of being fused by heat, thermal bonding is possible.
  • a label 14 may be preferably stuck thereon for description of the content. It may also be possible to print the container or cover to indicate the content, but the use of pigments as the printing ink must be avoided lest the washing be contaminated.
  • the mechanical strength of the container 11 or 101 and the cover 12 or 102 molded from the the synthetic detergent slurry is very high and substantially comparable to that of a carton, when the wall thickness is 10 to 15 mm.
  • the washer may tear off part from the package and throw it into the washing machine, and it can be used as the detergent just the same as the content.
  • the remainder is only a label.
  • the container is foam molded, its solubility to water is satisfactory due to its cellular structure.
  • the material was poured into the cavity of a hollow prismatic mold in an amount of 400 g./ 1.8 lit. capacity of the cavity and heated at 150 C. for 30 minutes.
  • the resultant container was satisfactory in mechanical strength.
  • the container and cover were bonded by heat.
  • the container and its content can be all used as the detergent without leaving any waste, so that this invention will also have a social meaning in that it will give a warning to the age of floods of relatively unsubstantial packages intended only to enhance the marketing effect.
  • a synthetic detergent consisting essentially of 25 to weight percent sodium silicate, 1 to 5 weight percent polyhydric alcohol selected from the group consisting of glycerine and ethylene glycol and 3 to 25 weight percent anionic sodium alkyl benzene sulfonates.
  • said container has a wall thickness of 10 to 15 mm.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
US33470A 1969-05-12 1970-04-30 Molding synthetic detergent superior in mechanical strength and containers molded therefrom Expired - Lifetime US3663449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44036426A JPS4831725B1 (enExample) 1969-05-12 1969-05-12

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US3663449A true US3663449A (en) 1972-05-16

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Country Status (5)

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US (1) US3663449A (enExample)
JP (1) JPS4831725B1 (enExample)
DE (1) DE2022927C3 (enExample)
FR (1) FR2047651A5 (enExample)
GB (1) GB1292799A (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664983A (en) * 1985-01-08 1987-05-12 Toray Industries Inc. Polyester composition, the moldings of the composition and the process for manufacturing of the moldings
US4681914A (en) * 1985-04-30 1987-07-21 Ecolab Inc. Solid cast detergents containing encapsulated halogen bleaches and methods of preparation and use
WO2002085737A1 (en) * 2001-04-20 2002-10-31 Reckitt Benckiser (Uk) Limited Water-soluble container having at least two openings
US20040029764A1 (en) * 2000-07-14 2004-02-12 Henriette Weber Hollow body with a compartment, containing a portion of a washing, cleaning or rinsing agent
WO2005019401A1 (de) * 2003-08-19 2005-03-03 Henkel Kommanditgesellschaft Auf Aktien Wasch- oder reinigungsmittel
US20170313962A1 (en) * 2014-10-16 2017-11-02 Lg Household & Health Care Ltd. Envelope type detergent
GR20210100768A (el) * 2021-11-04 2023-06-13 Γεωργια Ηλια Τουκουσμπαλιδου Συσκευασια που περιεχει απορρυπαντικο

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8800763D0 (en) * 1988-01-14 1988-02-17 Unilever Plc Detergent compositions
US5316688A (en) * 1991-05-14 1994-05-31 Ecolab Inc. Water soluble or dispersible film covered alkaline composition
AU782047B2 (en) * 1999-11-17 2005-06-30 Aquasol Limited Injection-moulded water-soluble container
ES2222253T3 (es) * 1999-11-17 2005-02-01 Reckitt Benckiser (Uk) Limited Recipientes solubles en agua moldeados por inyeccion.
DE10066035B4 (de) * 2000-07-14 2006-06-08 Henkel Kgaa Kompartiment-Hohlkörper
GB2375542A (en) * 2001-05-17 2002-11-20 Reckitt Benckiser Water soluble container
GB201001544D0 (en) * 2010-02-01 2010-03-17 Solsys Ltd Pellets and process therefor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664983A (en) * 1985-01-08 1987-05-12 Toray Industries Inc. Polyester composition, the moldings of the composition and the process for manufacturing of the moldings
US4681914A (en) * 1985-04-30 1987-07-21 Ecolab Inc. Solid cast detergents containing encapsulated halogen bleaches and methods of preparation and use
US7601679B2 (en) * 2000-07-14 2009-10-13 Henkel Ag & Co. Kgaa Process for producing a hollow body with a compartment, containing a portion of a washing, cleaning or rinsing agent
US20040029764A1 (en) * 2000-07-14 2004-02-12 Henriette Weber Hollow body with a compartment, containing a portion of a washing, cleaning or rinsing agent
US7417019B2 (en) * 2000-07-14 2008-08-26 Henkel Kommanditgesellschaft Auf Aktien Hollow body with a compartment, containing a portion of a washing, cleaning or rinsing agent
US20080312123A1 (en) * 2000-07-14 2008-12-18 Henkel Ag & Co. Kgaa (Formerly Named Henkel Kommanditgesellschaft Auf Aktien) Hollow body with a compartment, containing a portion of a washing, cleaning or rinsing agent
US20040118738A1 (en) * 2001-04-20 2004-06-24 Marcus Guzmann Water-soluble container having at least two openings
US7105478B2 (en) 2001-04-20 2006-09-12 Reckitt Benckiser (Uk) Limited Water-soluble container having at least two openings
WO2002085737A1 (en) * 2001-04-20 2002-10-31 Reckitt Benckiser (Uk) Limited Water-soluble container having at least two openings
WO2005019401A1 (de) * 2003-08-19 2005-03-03 Henkel Kommanditgesellschaft Auf Aktien Wasch- oder reinigungsmittel
US20170313962A1 (en) * 2014-10-16 2017-11-02 Lg Household & Health Care Ltd. Envelope type detergent
US10723984B2 (en) * 2014-10-16 2020-07-28 Lg Household & Health Care Ltd. Envelope type detergent
GR20210100768A (el) * 2021-11-04 2023-06-13 Γεωργια Ηλια Τουκουσμπαλιδου Συσκευασια που περιεχει απορρυπαντικο

Also Published As

Publication number Publication date
DE2022927C3 (de) 1975-04-30
JPS4831725B1 (enExample) 1973-10-01
FR2047651A5 (enExample) 1971-03-12
DE2022927B2 (de) 1974-08-22
DE2022927A1 (de) 1970-11-19
GB1292799A (en) 1972-10-11

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