US4846995A — Use of graft polymers based on polyalkylene oxide…

Claim 1

Independent Claim 105 words

A detergent comprising surfactants and builders which contains, as an added soil antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting (a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000, is based on ethylene oxide, propylene oxide and/or butylene oxide, and is end group capped at at least one end, with (b) at least one vinyl ester derived frp, a saturated monocarboxylic acid containing 1 to 6 carbon atoms and/or a methyl or ethyl ester or acrylic or methacrylic acid in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Claim 2

Dependent Claim 105 words

A detergent comprising surfactants and builders which contains, as an added soil antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting (a) a polyalkylene oxide which has a number average molecular weight of from 300 to 100,000, is based on ethylene oxide, propylene oxide and/or butylene oxide, and is end group capped at at least one end, with (b) at least one vinyl ester derived frp, a saturated monocarboxylic acid containing 1 to 6 carbon atoms and/or a methyl or ethyl ester or acrylic or methacrylic acid in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Claim 3

Dependent Claim 137 words

A detergent as claimed in claim 1, wherein the graft polymer added as a soil antiredeposition agent is obtainable by grafting (a) a polyalkylene oxide having a number average molecular weight of from 1,000 to 50,000, polymerized ethylene oxide content of from 40 to 100 mole %, at least one of the terminal hydroxyl groups being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, benzyl ether group, or being esterified with a C 1 - to C 18 -carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid containing 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid.

Claim 4

Dependent Claim 136 words

A detergent as claimed in claim 1, wherein the graft polymer added as a soil antiredeposition agent is obtainable by grafting. (a) a polyethylene oxide having a number average molecular weight of from 1,000 to 50,000 and at least one of the terminal hydroxyl groups being etherified by a C 1 to C 18 -alkyl ether group, phenyl ether group, benzyl ether group, or being esterified with a C 1 - to C 18 carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) vinyl acetate in a weight ratio (a):(b) of from 1:0.5 to 1:6, and has a K value of from 5 to 200 (determined according to H. Fikentscher in 2% strength by weight solution in dimethylformamide at 25° C.).

Claim 5

Dependent Claim 24 words

A detergent as claimed in claim 1, wherein up to 15 mole % of the polymerized ester groups of the graft polymer are hydrolyzed.

Claim 6

Dependent Claim 153 words

A detergent comprising as an added antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting (a) a polyalkylene oxide having a number average molecular weight of from 300 to 100,000, based on ethylene oxide, propylene oxide, butylene oxide or their mixtures, at least one of the terminal hydroxyl groups of the polyalkylene oxide being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, benzyl ether group, or being esterified with a C 1 - to C 18 -carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid having 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid, in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Claim 7

Dependent Claim 153 words

A detergent comprising as an added antiredeposition agent, from 0.1 to 5% by weight of a graft polymer which is obtainable by grafting (a) a polyalkylene oxide having a number average molecular weight of from 300 to 100,000, based on ethylene oxide, propylene oxide, butylene oxide or their mixtures, at least one of the terminal hydroxyl groups of the polyalkylene oxide being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, benzyl ether group, or being esterified with a C 1 - to C 18 -carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid having 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid, in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Claim 8

Dependent Claim 144 words

A detergent as claimed in claim 5, wherein the graft polymer added as soil antiredeposition agent is obtainable by grafting (a) a polyethylene oxide having a number average molecular weight of from 1,000 to 50,000, an ethylene oxide content of from 40 to 100 mole %, at least one of the terminal hydroxyl groups of the polyalkylene oxide being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, or being esterified with a C 1 - to C 18 -carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid having 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid, in a weight ratio (a):(b) of from 1:0.5 to 1:6.

Claim 9

Dependent Claim 41 words

A detergent as claimed in claim 5, wherein the graft polymer added as soil antiredeposition agent has a K value of from 5 to 200 (determined according to H. Fikentscher in 2% strength by weight solution in dimethylformamide at 25° C.).

Claim 10

Dependent Claim 21 words

A detergent as claimed in claim 5, wherein up to 15% of the ester groups of the graft polymer are hydrolyzed.

Claim 11

Dependent Claim 169 words

A process for soil antiredeposition during washing with detergents having a reduced phosphate content of less than 25% by weight of sodium triphosphate, which comprises using as a soil antiredeposition agent a graft polymer which is obtainable by grafting (a) a polyalkylene oxide having a number average molecular weight of from 300 to 100,000, based on ethylene oxide, propylene oxide, butylene oxide or their mixtures, at least one of the terminal hydroxyl groups of the polyalkylene oxide being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, benzyl ether group or being esterified with a C 1 - to C 18 -carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid having 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid, in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Claim 12

Dependent Claim 169 words

A process for soil antiredeposition during washing with detergents having a reduced phosphate content of less than 25% by weight of sodium triphosphate, which comprises using as a soil antiredeposition agent a graft polymer which is obtainable by grafting (a) a polyalkylene oxide having a number average molecular weight of from 300 to 100,000, based on ethylene oxide, propylene oxide, butylene oxide or their mixtures, at least one of the terminal hydroxyl groups of the polyalkylene oxide being etherified by a C 1 - to C 18 -alkyl ether group, phenyl ether group, benzyl ether group or being esterified with a C 1 - to C 18 -carboxylic acid or carboxylic acid anhydride, or being reacted with an isocyanate or with a C 1 - to C 18 -alkylamine, with (b) at least one vinyl ester derived from a saturated monocarboxylic acid having 1 to 6 carbon atoms or a methyl or ethyl ester of acrylic or methacrylic acid, in a weight ratio (a):(b) of from 1:0.2 to 1:10.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-07-10	1993-01-09	1993-07-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-07-10	1997-01-09	1997-07-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-07-10	2001-01-09	2001-07-11	$7700.00	Window Closed / Lapsed

Use of graft polymers based on polyalkylene oxides as grayness inhibitors in the wash and aftertreatment of textile material containing syntheic fibers

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