US3850832A — Washing, rinsing and cleansing agent compositions…

Claim 1

Independent Claim 123 words

WASHING, RINSING AND CLEANING COMPOSITIONS CONSISTING ESSENTIALLY OF (A) FROM 5 PERCENT TO 95 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND HAVING A CLEANING ACTION SELECTED FROM THE GROUP CONSISTING OF (19 ANIONIC SURFACE-ACTIVE COMPOUNDS, NON-IONIC SURFACE-ACTIVE COMPOUNDS, AMPHOTERIC SURFACEACTIVE COMPOUNDS, AND MIXTURES THEREOF, (2) ORGANIC BUILDER SALTS AND INORGANIC BUILDER SALTS, AND (3) MIXTURES OF (1) AND (2), AND (B) FROM 95 TO 5 PERCENT BY WEIGHT OF AT LEAST ONE COPOLYMERCARBOXYLATE SEQUESTERING AGENT CAPABLE OF SEQUESTERING ALKALINE EARTH METAL IONSS PREPARED APPROXIMATELY EQUAL MOLAR AMOUNTS OF MALEIC ACID AND FURAN, AND HAVING A MOLECULAR WEIGHT OF FROM ABOUT 300 TO 20,000, SAID COPOLYMER-CARBOXYLATE SEQUESTERING AGENTS BEING PRESENT AS WATER SOLUBLE SALTS CAPABLE OF COMPLEX FORMATION WITH ALKALINE EARHT METAL IONS.

Claim 2

Dependent Claim 123 words

WASHING, RINSING AND CLEANING COMPOSITIONS CONSISTING ESSENTIALLY OF (A) FROM 5 PERCENT TO 95 PERCENT BY WEIGHT OF AT LEAST ONE COMPOUND HAVING A CLEANING ACTION SELECTED FROM THE GROUP CONSISTING OF (19 ANIONIC SURFACE-ACTIVE COMPOUNDS, NON-IONIC SURFACE-ACTIVE COMPOUNDS, AMPHOTERIC SURFACEACTIVE COMPOUNDS, AND MIXTURES THEREOF, (2) ORGANIC BUILDER SALTS AND INORGANIC BUILDER SALTS, AND (3) MIXTURES OF (1) AND (2), AND (B) FROM 95 TO 5 PERCENT BY WEIGHT OF AT LEAST ONE COPOLYMERCARBOXYLATE SEQUESTERING AGENT CAPABLE OF SEQUESTERING ALKALINE EARTH METAL IONSS PREPARED APPROXIMATELY EQUAL MOLAR AMOUNTS OF MALEIC ACID AND FURAN, AND HAVING A MOLECULAR WEIGHT OF FROM ABOUT 300 TO 20,000, SAID COPOLYMER-CARBOXYLATE SEQUESTERING AGENTS BEING PRESENT AS WATER SOLUBLE SALTS CAPABLE OF COMPLEX FORMATION WITH ALKALINE EARHT METAL IONS.

Claim 3

Dependent Claim 93 words

The washing, rinsing and cleansing compositions of claim 1 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is selected from the group consisting of a saponified polymer of 1,2,3,6-tetrahydro-3,6-epoxy-phthalic acid anhydride in the free acid form having a molecular weight of from 500 to 5,000, a saponified copolymer of substantially equal molar amounts of furan and maleic acid anhydride in the free acid form having a molecular weight of from 500 to 5,000, their alkali metal salts, their ammonium salts, their lower alkylamine salts and their lower alkylolamine salts.

Claim 4

Dependent Claim 41 words

The washing, rinsing and cleansing composition of claim 1 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is the sodium salt of a polymer of 1,2,3,6-tetrahydro-3,6-epoxy-phthalic acid having an average molecular weight of from 500 to 5,000.

Claim 5

Dependent Claim 53 words

The washing, rinsing and cleansing composition of claim 1 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is the ammonium salt of a copolymer of equal molar amounts of furan and maleic acid anhydride saponified with aqueous ammonia and having an average molecular weight of from 500 to 5,000.

Claim 6

Dependent Claim 73 words

The washing, rinsing and cleansing composition of claim 1 containing from 10 to 30 percent by weight of alkali metal silicates, from 10 to 80 percent by weight of caustic alkalis, from 0 to 10 percent by weight of nonionic tensides and from 5 to 30 percent by weight of said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions, for use in the industrial cleaning of solid material other than textiles.

Claim 7

Dependent Claim 93 words

The washing, rinsing and cleansing composition of claim 1 containing from 5 to 40 percent by weight of tensides selected from the group consisting of anionic surface-active compounds, nonionic surface-active compounds and amphoteric surface-active compounds, from 20 to 90 percent by weight of builders selected from the group consisting of organic builder salts and inorganic builder salts and from 10 to 80 percent by weight of said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions, said compositions having a pH in a 1 percent aqueous solution of from 7 to 11.5.

Claim 8

Dependent Claim 40 words

The composition of claim 6 wherein said tenside component includes from 0.5 to 10 percent by weight of the tenside component of foam stabilizers and from 0.5 to 10 percent by weight of the tenside component, of non-tenside foam inhibitors.

Claim 9

Dependent Claim 41 words

The composition of claim 6 wherein said builder component includes from 5 to 40 percent by weight of the composition of a bleaching component selected from the group consisting of percompounds, their mixtures with bleach activators and stabilizers, and active-chlorine compounds.

Claim 10

Dependent Claim 49 words

The composition of claim 6 including a further content of from 0.1 to 5 percent of soil-suspending agents, from 0 to 5 percent by weight of enzymes selected from the group consisting of proteases, lipeases and amylases, and from 0 to 1 percent by weight of an optical brightener.

Claim 11

Dependent Claim 60 words

The washing, rinsing and cleansing composition of claim 1 wherein said at least one compound having a cleaning action is selected from the group consisting of alkali metal silicates, and mixtures thereof with alkali metal hydroxides and alkali metal carbonates, wherein said composition in aqueous solution has a pH of between 8 to 12 for use in automatic dishwashing machines.

Claim 12

Dependent Claim 66 words

The composition of claim 10 having a further content of from 0.5 to 10 percent by weight of nonionic surface-active compounds, from 0 to 20 percent by weight of active-chlorine compounds, from 0 to 5 percent by weight of enzymes selected from the group consisting of proteases, lipeases and amylases, and from 0 to 1 percent by weight of sequestering agents capable of sequestering heavy metals.

Claim 13

Dependent Claim 26 words

The composition of claim 11 wherein said active-chlorine compounds are present in an amount of from 1 to 5 percent and are sodium or potassium dichloroisocyanurate.

Claim 14

Dependent Claim 147 words

In the process of washing, rinsing and cleansing solid materials which comprises contacting solid materials having soil thereon with an aqueous solution containing from 0.5 to 80 gm/liter of a cleansing agent consisting of from 5 to 95 percent of at least one compound having a cleaning action and from 95 to 5 percent of a sequestering agent capable of sequestering alkaline earth metal ions, for a time sufficient to disperse and dissolve said soil in said aqueous solution and removing said cleansed solid materials, the improvement consisting of utilizing, as said sequestering agent, at least one copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions prepared from approximately equal molar amounts of maleic acid and furan, and having a molecular weight of from about 300 to 20,000, said copolymer-carboxylate sequestering agents being present as water-soluble salts capable of complex formation with alkaline earth metal ions.

Claim 15

Dependent Claim 147 words

In the process of washing, rinsing and cleansing solid materials which comprises contacting solid materials having soil thereon with an aqueous solution containing from 0.5 to 80 gm/liter of a cleansing agent consisting of from 5 to 95 percent of at least one compound having a cleaning action and from 95 to 5 percent of a sequestering agent capable of sequestering alkaline earth metal ions, for a time sufficient to disperse and dissolve said soil in said aqueous solution and removing said cleansed solid materials, the improvement consisting of utilizing, as said sequestering agent, at least one copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions prepared from approximately equal molar amounts of maleic acid and furan, and having a molecular weight of from about 300 to 20,000, said copolymer-carboxylate sequestering agents being present as water-soluble salts capable of complex formation with alkaline earth metal ions.

Claim 16

Dependent Claim 90 words

The method of claim 13 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is selected from the group consisting of a saponified polymer of 1,2,3,6-tetrahydro-3,6-epoxy-phthalic acid anhydride in the free acid form having a molecular weight of from 500 to 5, 000, a saponified copolymer of substantially equal molar amounts of furan and maleic acid anhydride in the free acid form having a molecular weight of from 500 to 5,000, their alkali metal salts, their ammonium salts, their lower alkylamine salts and their lower alkylolamine salts.

Claim 17

Dependent Claim 37 words

The method of claim 13 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is the sodium salt of a polymer of 1,2,3,6-tetrahydro-3,6-epoxy-phthalic acid having an average molecular weight of from 500 to 5,000.

Claim 18

Dependent Claim 50 words

The method of claim 13 wherein said copolymer-carboxylate sequestering agent capable of sequestering alkaline earth metal ions is the ammonium salt of a copolymer of equal molar amounts of furan and maleic acid anhydride saponified with aqueous ammonia and having an average molecular weight of from 500 to 5, 000.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-11-25	1978-05-27	1978-11-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-11-25	1982-05-27	1982-11-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-11-25	1986-05-27	1986-11-26	$7700.00	Window Closed / Lapsed

Washing, rinsing and cleansing agent compositions containing furan-maleic anhydride copolymer sequestering agents

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