CA3076009C

Use of eo/po block copolymer surfactant for controlling viscoelasticity in highly concentrated liquid formulations

Abstract

Antimicrobial or non-antimicrobial compositions, sanitizing compositions and other compositions combining use of a propoxylated EO/PO block copolymer surfactant and/or propoxylated polymer in combination with at least one additional anionic and/or nonionic surfactant to provide concentrated compositions having a desired viscoelasticity at an active level of at least 18% are disclosed. Non-antimicrobial applications combining use of a propoxylated surfactant and/or propoxylated polymer in combination with at least one additional anionic and/or nonionic surfactant to provide compositions having a desired viscoelasticity are also disclosed. Methods of using concentrated and use compositions having desired foaming enhancement and stabilization are also disclosed.

CA3076009C, drawing sheet 1
Sheet 1 of 5

Term

12 yearsleft in the term

Expires 26 September 2038.

  1. Priority
  2. Filed
  3. Granted
  4. Today
  5. Expires

22 claims: 16 independent, 6 dependent

  1. 1
    What is daimed is:1. A concentrated cleaning composition comprising: between about 1 wt-% and about 30 wt-% of a propoxylated EO/PO block copolymer surfactant;and between about 1 wt-% and about 50 wt-% of at least one anionic surfactant;and between about 10 wt-% and about 70 wt-% of at least one nonionic surfactant;wherein the composition is a liquid having an active concentration of at least 18% that is soluble in water and has a viscosity of less than 900 cPs, has a pH of about 1 to about 12 in a use solution;and wherein the composition does not contain ethanol.
  2. 2
    The concentrated cleaning composition of daim 1, wherein the propoxylated EO/PO block copolymer surfactant has the following structure (EO)n(PO)m(EO)n or (P0)m(E0)n(P0)m, wherein n is the average number of polymerized ethylene oxide units and m is the average number of polymerized propylene oxide units, wherein the molecular weight is between about 1000 g/mol and about 15,000 g/mol, and wherein the EO/PO block copolymer surfactant has at least 20% PO, at least 30% PO, at least 40% PO, at least 50% PO, or at least 60% PO with a Ross Miles Foam of greater than or equal to 40 measured at 0.1% at 50°C.
  3. 3
    The concentrated cleaning composition of daim 2, wherein the composition further comprises an antimicrobial agent.
  4. 4
    The concentrated deaning composition of any one of claims 2-3, wherein the EO/PO block copolymer surfactant has a molecular weight of at least 3000 g/mol.
  5. 5
    The concentrated deaning composition of any one of claims 1-4, further comprising a propoxylated polymer or copolymer comprising one or more of:propoxylated homopolymer;polyethyleneimine derivative propoxylated polymer having a PO group, EO-PO group or PO-EO group, salts thereof, or mixtures thereof;an anionic extended chain surfactant;or a nonionic extended chain surfactant having a PO group.
  6. 9
    The concentrated cleaning composition of any one of claims 1-8, wherein the concentrated cleaning composition comprises from about 1 wt-% to about 15 wt-% of the propoxylated EO/PO block copolymer surfactant, from about 1 wt-% to about 40 wt-% of the anionic surfactant, and from about 10 wt-% to about 70 wt-% of the nonionic surfactant.
  7. 10
    The concentrated cleaning composition of any one of claims 1-9, wherein the anionic surfactant is an alkoxylated or un-alkoxylated linear or branched chain carboxylate.
  8. 13
    The concentrated cleaning composition of any one of claims 1-9, wherein the nonionic surfactant is an alcohol ethoxylate, alcohol alkoxylate, block copolymer, amine oxide, alkylpolyglucoside, or combinations thereof.
  9. 14
    The concentrated cleaning composition of any one of claims 1-13, wherein the pH of the use solution is between about 6 and about 10. Date Reçue/Date Received 2022-07-18
  10. 15
    The concentrated cleaning composition of any one of claims 1-14, further comprising water and/or one or more additional functional ingredients comprising additional surfactants, solvents, solubility modifiers, humectants, metal protecting agents, stabilizing agents, corrosion inhibitors, séquestrants and/or chelating agents, preservatives, sheeting agents, pH modifying components, fragrances and/or dyes, hydrotropes or couplers, and/or buffers.
  11. 16
    The concentrated cleaning composition of any one of claims 1-15, wherein the concentrated cleaning composition comprises an active concentration of at least 30% and has a viscosity less than 500 cPs.
  12. 17
    A kit comprising:a two-part premix for a concentrated cleaning composition comprising the concentrated cleaning composition as defined in any one of claims 1-16;wherein the concentrated cleaning composition is provided in two parts, wherein the first part comprises the propoxylated EO/PO block copolymer surfactant;and wherein the second part comprises the at least one anionic and the at least one nonionic surfactant.
  13. 18
    A method of cleaning a surface comprising:providing the concentrated cleaning composition as defined in any one of claims 1-16 to a surface;and optionally rinsing the surface in need thereof, wherein the composition provides commercially acceptable cleaning performance.
  14. 20
    The method of any one of claims 18-19, wherein the commercially acceptable cleaning performance provides an antimicrobial efficacy of at least a 3 log microbial kill on the surface when an antimicrobial agent is included in the composition, or removal of soil after contacting the surface for a sufficient period of time.
  15. 21
    The method of any one of claims 18-20, wherein the surface is ware.
  16. 22
    The method of any one of claims 18-21, wherein the composition is effective at a temperature range of from about 20C to about 280C.