§
PatentCue
Patent Intelligence
Join Waitlist Sign In
← Back to Patent Explorer
US3954675A Expired / Lapsed US ⏱️ 0.0 years remaining

Heavy duty oxidizing bleach stable liquid laundry detergent

Assignee: Colgate Palmolive Co
•
Filing: 1974-06-24
•
Granted: 1976-05-04
•
Expires: 1994-06-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A clear liquid synthetic organic heavy duty laundry detergent composition for use with an oxidizing bleach such as chlorine bleaches comprising a non-ionic and anionic biodegradable synthetic organic detergent system, water, an alcohol and at least one oxidizing bleach stable brightening agent selected from 4,4'-Bis(4-phenyl-1,2,3-triazol-2-yl)-2,2'stilbene disulfonic acid and salts thereof, 4,4'-diphenylvinylene-2,2'biphenyl disulfonic acid, and salts thereof. Small proportions of various additional optional agents such as sequestering agents and saltforming bases may also be included in the composition which is a single phase clear stable liquid which can be made opaque, creamy or opalescent if desired. The composition furthermore is substantially neutral or only slightly alkaline when measured at a 1% concentration in water and cleans and brightens soiled laundry to a degree comparable to that utilizing phosphate built alkaline detergents. Furthermore, by a judicious choice of non-ionic biodegradable detergents, the liquid detergent composition may be made to be non-gelling on standing in contact with the atmosphere.

Inventors

  • 👤 Jack T. Inamorato
  • 👤 Robert W. McDonnell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 15:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/40; C11D3/42; C11D1/00; C11D1/66; C11D1/83; C11D3/395; C11D3/3956

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 94 words
A clear oxidizng bleach stable heavy duty liquid detergent composition substantially devoid of phosphate and nitrogeneous builder having from 30 to 80% by weight of a detergent system consisting essentially of nonionic and anionic detergent in which the weight ratio of nonionic to anionic is 15:1 to 1:1, from 5 to 35% by weight of a lower monohydric, dihydric or trihydric alkanol, from 5 to 35% by weight water and from 0.5 to 5% by weight of a fluorescent brightener system including at least a major amount of 4,4'-Bis(4-phenyl-1,2,3-triazol-2-yl)-2,2'-stilbene disulfonic acid and salts thereof.
Claim 2
Dependent Claim 94 words
A clear oxidizng bleach stable heavy duty liquid detergent composition substantially devoid of phosphate and nitrogeneous builder having from 30 to 80% by weight of a detergent system consisting essentially of nonionic and anionic detergent in which the weight ratio of nonionic to anionic is 15:1 to 1:1, from 5 to 35% by weight of a lower monohydric, dihydric or trihydric alkanol, from 5 to 35% by weight water and from 0.5 to 5% by weight of a fluorescent brightener system including at least a major amount of 4,4'-Bis(4-phenyl-1,2,3-triazol-2-yl)-2,2'-stilbene disulfonic acid and salts thereof.
Claim 3
Dependent Claim 138 words
The detergent composition of claim 1 wherein said detergent is a mixture of non-ionic and anionic detergents, said non-ionic detergent having the formula RO(C 2 H 4 O) n H, wherein R is an alkyl group having from 10 to 20 carbon atoms and n is a number from 5 to 14 with the proviso that n is from 2/5 to 1 times the number of carbon atoms in R, and said anionic detergent has the formula RO(C 2 H 4 O) n SO 3 M, wherein R is an alkyl group having from 10 to 20 carbon atoms, n is a number from 2 to 6 and M is a salt-forming ion selected from alkali metals, ammonium, lower alkylamino and lower alkanolamino in a weight ratio of said non-ionic to said anionic of from 15:1 to 1:1.
Claim 4
Dependent Claim 20 words
The composition of claim 2 wherein said brightener system is from 0.5 to 2% by weight of 4,4'-Bis(4-phenyl-1,2,3-triazol-2-yl)-2,2'-stilbene disulfonic acid.

References Cited (Backward Citations)

US3449333A Cited
US3565939A Cited
US3575866A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-05-04 1979-11-03 1980-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-05-04 1983-11-03 1984-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-05-04 1987-11-03 1988-05-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag