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US4911858A Expired / Lapsed US ⏱️ 0.0 years remaining

Toilet bowl cleaner

Assignee: Kiwi Brands Inc
•
Filing: 1988-09-15
•
Granted: 1990-03-27
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Expires: 2008-09-15
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Abstract

Abstract Solid cake lavoratory cleansing block compositions comprising polyethylene glycol polymer and guar gum, and optional ingredients which include fragrances, dyes, solid binders, filler material and mixtures thereof.

Inventors

  • 👤 Charles J. Bunczk
  • 👤 Peter A. Burke
  • 👤 William R. Camp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 15:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D17/00; C11D17/0047; C11D17/0056; C11D3/37; C11D3/3703; C11D3/3707; C11D3/38; C11D3/382

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 106 words
A solid cake lavoratory cleansing block composition comprising from at least about 1% by weight of composition of polyethylene oxide polymer having a molecular weight from about 1 million to about 6 million, about 1% to 25% by weight of composition of guar gum, about 5 to 80% of inert salts which include at least sodium chloride, and the remainder being ingredients selected from the group consisting of surfactants, fragrances, dyes, binders, filler material and mixtures thereof, said polyethylene oxide polymer and guar gum being present in a combination whereby after hydration and gelation a matrix is formed which entraps the components and coordinates their release.
Claim 2
Dependent Claim 106 words
A solid cake lavoratory cleansing block composition comprising from at least about 1% by weight of composition of polyethylene oxide polymer having a molecular weight from about 1 million to about 6 million, about 1% to 25% by weight of composition of guar gum, about 5 to 80% of inert salts which include at least sodium chloride, and the remainder being ingredients selected from the group consisting of surfactants, fragrances, dyes, binders, filler material and mixtures thereof, said polyethylene oxide polymer and guar gum being present in a combination whereby after hydration and gelation a matrix is formed which entraps the components and coordinates their release.
Claim 3
Dependent Claim 17 words
The cleansing block composition of claim 1 including at least 1.0% by weight of a calcium salt.
Claim 4
Dependent Claim 28 words
The cleansing block composition of claim 1 including sodium chloride in an amount sufficient for providing a viscosity increase in water and relative insolubility of the total block.
Claim 5
Dependent Claim 14 words
The cleansing block composition of claim 1 wherein said filler material comprises calcium sulfate.
Claim 6
Dependent Claim 17 words
The cleansing block composition of claim 1 wherein said filler material comprises calcium sulfate and sodium chloride.
Claim 7
Dependent Claim 13 words
The cleansing block composition of claim 1 including a cationic quaternary ammonium salt.
Claim 8
Dependent Claim 28 words
The cleansing block composition of claim 1 including a plasticizer selected from the group consisting of polypropylene glycol, dipentene, pine oil fractions, d-limonene and ethylene oxide-propylene oxide copolymers.
Claim 9
Dependent Claim 116 words
A lavoratory cleansing block composition comprising: (a) from about 1% to about % by weight of composition of polyethylene oxide homopolymer having a molecular weight from about 1 million to about 6 million, (b) about 5 to about 20% by weight of composition of guar gum; (c) about 5 to about 80% by weigh of composition of sodium chloride; (d) 0 to about 70% by weight of composition of calcium sulfate; and (e) up to about 15% by weight of composition of disinfecting agents, coloring and/or fragrances, said polyethylene oxide polymer and guar gum being present in a combination whereby after hydration and gelation a matrix is formed which entraps the components and coordinates their release.
Claim 10
Dependent Claim 116 words
A lavoratory cleansing block composition comprising: (a) from about 1% to about % by weight of composition of polyethylene oxide homopolymer having a molecular weight from about 1 million to about 6 million, (b) about 5 to about 20% by weight of composition of guar gum; (c) about 5 to about 80% by weigh of composition of sodium chloride; (d) 0 to about 70% by weight of composition of calcium sulfate; and (e) up to about 15% by weight of composition of disinfecting agents, coloring and/or fragrances, said polyethylene oxide polymer and guar gum being present in a combination whereby after hydration and gelation a matrix is formed which entraps the components and coordinates their release.
Claim 11
Dependent Claim 18 words
The composition of claim 8 which includes at least 1% by weight of composition of a calcium salt.
Claim 12
Dependent Claim 10 words
The block of claim 8 which is formed by compression.
Claim 13
Dependent Claim 15 words
The composition of claim 8 including 10-25% by weight of composition of an extrusion aid.
Claim 14
Dependent Claim 26 words
The composition of claim 8 including a plasticizer selected from the group consisting of polypropylene glycol, dipentene, pine oil fractions, d-limonene and ethylene oxide-propylene oxide copolymers.
Claim 15
Dependent Claim 66 words
In a solid cake lavoratory cleansing block composition comprising guar gum as a dissolution control agent, the improvement which comprises including about I% to about 6% by weight of composition of polyethylene oxide polymer having a molecular weight from about 1 million to about 6 million and at least about 1% by weight of a crosslinking agent for the guar gum consisting of a calcium salt.
Claim 16
Dependent Claim 66 words
In a solid cake lavoratory cleansing block composition comprising guar gum as a dissolution control agent, the improvement which comprises including about I% to about 6% by weight of composition of polyethylene oxide polymer having a molecular weight from about 1 million to about 6 million and at least about 1% by weight of a crosslinking agent for the guar gum consisting of a calcium salt.
Claim 17
Dependent Claim 20 words
The composition of claim 13 wherein the molecular weight of said polyethylene oxide polymer is about 4 to 6 million.

References Cited (Backward Citations)

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US4308625A Cited
US4278571A Cited
US4310434A Cited
US4460490A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-03-26 1993-09-25 1994-03-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-03-26 1997-09-25 1998-03-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-03-26 2001-09-25 2002-03-27 $7700.00 Window Closed / Lapsed

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