US4201824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic polyurethanes and their application as soil-release, anti-soil redeposition, and anti-static agents for textile substrates
Assignee: Rhone Poulenc Industries SA
•
Filing: 1977-06-07
•
Granted: 1980-05-06
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Expires: 1997-06-07
Abstract
Abstract Novel linear hydrophilic polyurethane polymers are presented. The polymers provide outstanding soil-release, anti-soil redeposition and anti-static properties when applied to natural and synthetic textile substrates, especially textile substrates containing polyester fibers. These polyurethanes are particularly useful in detergent compositions.
Inventors
- 👤 Robert Violland
- 👤 Alain Lagasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:15
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0828; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/48; C08G18/4833; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S528/00; Y10S528/904; Y10T; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2418; Y10T442/2459
Claims Analysis
Total Claims: 97
Claim 1
Independent Claim
136 words
A linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of an aromatic dicarboxylic acid or ester-forming derivative thereof with a diol having a molecular weight not in excess of about 300; and (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol having a molecular weight of from about 300 to about 6,000 with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 2
Dependent Claim
136 words
A linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of an aromatic dicarboxylic acid or ester-forming derivative thereof with a diol having a molecular weight not in excess of about 300; and (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol having a molecular weight of from about 300 to about 6,000 with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 3
Dependent Claim
21 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the aromatic dicarboxylic acid comprising the polyester (a) is terephthalic acid.
Claim 4
Dependent Claim
23 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b) is a polyethylene glycol.
Claim 5
Dependent Claim
23 words
The linear, hydrophilic polyurethane as defined by claim 2, wherein the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b) is a polyethylene glycol.
Claim 6
Dependent Claim
136 words
A linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol having a molecular weight not in excess of about 300; and (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic polyethylene glycol having a molecular weight of from about 300 to about 6,000 with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 7
Dependent Claim
136 words
A linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol having a molecular weight not in excess of about 300; and (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic polyethylene glycol having a molecular weight of from about 300 to about 6,000 with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 8
Dependent Claim
23 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the polyester (a) has an average molecular weight of between 1,000 and 4,000.
Claim 9
Dependent Claim
23 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the polyester (a) has an average molecular weight of between 1,000 and 4,000.
Claim 10
Dependent Claim
28 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b) has a molecular weight of between 600 and 4,000.
Claim 11
Dependent Claim
45 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the dicarboxylic acid comprising the polyester (a) is selected from the group consisting of adipic acid, fumaric acid, itaconic acid, maleic acid, phthalic acid, isophthalic acid, terephthalic acid, sebacic acid, suberic acid and succinic acid.
Claim 12
Dependent Claim
17 words
The linear, hydrophilic polyurethane as defined by claim 9, wherein the said dicarboxylic acid is terephthalic acid.
Claim 13
Dependent Claim
20 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the polyester (a) comprises the condensation product of dimethyl terephthalate.
Claim 14
Dependent Claim
20 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the polyester (a) comprises the condensation product of dimethyl terephthalate.
Claim 15
Dependent Claim
41 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the diol comprising the polyester (a) is selected from the group consisting of ethylene glycol, propane-1,2-diol, dipropylene glycol, diethylene glycol, butane-1,4-diol, hexane-1,6-diol, hexane-1,6-diol, neopentyl glycol, cyclohexane diol and dicyclohexane diol propane.
Claim 16
Dependent Claim
43 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the diisocyanate comprising the isocyanato prepolymer (b) is selected from the group consisting of 2,4- and 2,6-toluene diisocyanate, 1,6-hexamethylene diisocyanate, isophorone diisocyanate, di-(isocyanotophenyl)-methane, di-(isocyanotocyclohexyl)-methane, diphenylmethane-4,4'-diisocyanate, 3,3'-dimethyl-4,4'-bis-phenylene diisocyanate, 4,4'-methylene bis(cyclohexylisocyanate) and 3,3'-dimethyl-4,4'-diphenyl methane diisocyanate.
Claim 17
Dependent Claim
43 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the diisocyanate comprising the isocyanato prepolymer (b) is selected from the group consisting of 2,4- and 2,6-toluene diisocyanate, 1,6-hexamethylene diisocyanate, isophorone diisocyanate, di-(isocyanotophenyl)-methane, di-(isocyanotocyclohexyl)-methane, diphenylmethyl-4,4'-diisocyanate, 3,3'-dimethyl-4,4'-bis-phenylene diisocyanate, 4,4'-methylene bis(cyclohexylisocyanate) and 3,3'-dimethyl-4,4'-diphenyl methane diisocyanate.
Claim 18
Dependent Claim
44 words
The linear, hydrophilic polyurethane as defined by claim 14, wherein the said diisocyanate is selected from the group consisting of 1,6-hexamethylene diisocyanate, 2,4-toluene diisocyanate and mixtures of each with 2,6-toluene diisocyanate, wherein each mixture contains up to about 35 weight percent of the 2,6-isomer.
Claim 19
Dependent Claim
44 words
The linear, hydrophilic polyurethane as defined by claim 15, wherein the said diisocyanate is selected from the group consisting of 1,6-hexamethylene diisocyanate, 2,4-toluene diisocyanate and mixtures of each with 2,6-toluene diisocyanate, wherein each mixture contains up to about 35 weight percent of the 2,6-isomer.
Claim 20
Dependent Claim
42 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the amount of diisocyanate reacted, based upon the total weight of the polyester (a) and the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b), ranges from between 2 and 15 weight percent.
Claim 21
Dependent Claim
42 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the amount of diisocyanate reacted, based upon the total weight of the polyester (a) and the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b), ranges from between 2 and 15 weight percent.
Claim 22
Dependent Claim
51 words
The linear, hydrophilic polyurethane as defined by claim 1, wherein the polyester (a) forming reactants further comprise up to 15 weight percent, based upon the total weight of the dicarboxylic acids, of a member selected from the group consisting of a sulfonated dicarboxylic acid or ester-forming derivative thereof, and salts thereof.
Claim 23
Dependent Claim
51 words
The linear, hydrophilic polyurethane as defined by claim 5, wherein the polyester (a) forming reactants further comprise up to 15 weight percent, based upon the total weight of the dicarboxylic acids, of a member selected from the group consisting of a sulfonated dicarboxylic acid or ester-forming derivative thereof, and salts thereof.
Claim 24
Dependent Claim
41 words
The linear, hydrophilic polyurethane as defined by claim 20, wherein said sulfonated coreactant is selected from the group consisting of sulfoisophthalic acid, sulfoisophthalic acid dimethyl ester, alkali metal salts of sulfoisophthalic acid, and alkali metal salts of sulfoisophthalic acid dimethyl ester.
Claim 25
Dependent Claim
41 words
The linear, hydrophilic polyurethane as defined by claim 21, wherein said sulfonated coreactant is selected from the group consisting of sulfoisophthalic acid, sulfoisophthalic acid dimethyl ester, alkali metal salts of sulfoisophthalic acid, and alkali metal salts of sulfoisophthalic acid dimethyl ester.
Claim 26
Dependent Claim
130 words
A detergent composition comprising (i) a surfactant and (ii) from about 0.1 to 5 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 20 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 27
Dependent Claim
130 words
A detergent composition comprising (i) a surfactant and (ii) from about 0.1 to 5 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 20 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 28
Dependent Claim
25 words
The detergent composition as defined in claim 24, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 29
Dependent Claim
29 words
The detergent composition as defined by claim 25, wherein the nonionic hydrophilic macrodiol comprising the isocyanato prepolymer (b) has a molecular weight of from about 300 to about 6,000.
Claim 30
Dependent Claim
18 words
A detergent composition comprising (i) a surfactant and (ii) a linear, hydrophilic polyurethane as defined by claim 1.
Claim 31
Dependent Claim
25 words
The detergent composition as defined by claim 2, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 32
Dependent Claim
25 words
The detergent composition as defined by claim 3, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 33
Dependent Claim
25 words
The detergent composition as defined by claim 4, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 34
Dependent Claim
25 words
The detergent composition as defined by claim 5, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 35
Dependent Claim
25 words
The detergent composition as defined by claim 6, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 36
Dependent Claim
25 words
The detergent composition as defined by claim 7, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 37
Dependent Claim
25 words
The detergent composition as defined by claim 8, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 38
Dependent Claim
25 words
The detergent composition as defined by claim 14, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 39
Dependent Claim
25 words
The detergent composition as defined by claim 15, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 40
Dependent Claim
25 words
The detergent composition as defined by claim 18, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 41
Dependent Claim
25 words
The detergent composition as defined by claim 19, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 42
Dependent Claim
25 words
The detergent composition as defined by claim 20, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 43
Dependent Claim
25 words
The detergent composition as defined by claim 21, wherein the diol comprising the polyester (a) has a molecular weight not in excess of about 300.
Claim 44
Dependent Claim
14 words
The detergent composition as defined by claim 24, further comprising (iii) a detergent builder.
Claim 45
Dependent Claim
14 words
The detergent composition as defined by claim 27, further comprising (iii) a detergent builder.
Claim 46
Dependent Claim
14 words
The detergent composition as defined by claim 28, further comprising (iii) a detergent builder.
Claim 47
Dependent Claim
14 words
The detergent composition as defined by claim 29, further comprising (iii) a detergent builder.
Claim 48
Dependent Claim
14 words
The detergent composition as defined by claim 30, further comprising (iii) a detergent builder.
Claim 49
Dependent Claim
14 words
The detergent composition as defined by claim 31, further comprising (iii) a detergent builder.
Claim 50
Dependent Claim
31 words
The detergent composition as defined by claim 24, further comprising (iii) at least one adjuvant selected from the group consisting of whiteners, anti-redeposition agents, perfumes, optical brightening agents and inert fillers.
Claim 51
Dependent Claim
23 words
The detergent composition as defined by claim 24, which comprises from about 0.5 to 3 weight percent of the linear, hydrophilic polyurethane (ii).
Claim 52
Dependent Claim
21 words
The detergent composition as defined by claim 24, which comprises from about 5 to 50 weight percent of the surfactant (i).
Claim 53
Dependent Claim
21 words
The detergent composition as defined by claim 49, which comprises from about 5 to 25 weight percent of the surfactant (i).
Claim 54
Dependent Claim
14 words
The detergent composition as defined by claim 24, further comprising (iii) a mineral filler.
Claim 55
Dependent Claim
14 words
The detergent composition as defined by claim 27, further comprising (iii) a mineral filler.
Claim 56
Dependent Claim
14 words
The detergent composition as defined by claim 31, further comprising (iii) a mineral filler.
Claim 57
Dependent Claim
129 words
A dilute, aqueous dispersion of (i) water and (ii) from 0.001 to 20 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 58
Dependent Claim
129 words
A dilute, aqueous dispersion of (i) water and (ii) from 0.001 to 20 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 59
Dependent Claim
25 words
A dilute, aqueous dispersion of (i) water and (ii) from 0.001 to 20 weight percent of the linear, hydrophilic polyurethane as defined by claim 1.
Claim 60
Dependent Claim
25 words
A dilute, aqueous dispersion of (i) water and (ii) from 0.001 to 20 weight percent of the linear hydrophilic polyurethane as defined by claim 5.
Claim 61
Dependent Claim
19 words
The dilute, aqueous dispersion as defined by claim 54, comprising from 0.002 to 0.05 weight percent of the polyurethane.
Claim 62
Dependent Claim
19 words
The dilute, aqueous dispersion as defined by claim 55, comprising from 0.002 to 0.05 weight percent of the polyurethane.
Claim 63
Dependent Claim
19 words
The dilute, aqueous dispersion as defined by claim 56, comprising from 0.002 to 0.05 weight percent of the polyurethane.
Claim 64
Dependent Claim
20 words
The detergent composition as defined by claim 41, comprising from about 10 to 60 weight percent of the detergent builder.
Claim 65
Dependent Claim
20 words
The detergent composition as defined by claim 42, comprising from about 10 to 60 weight percent of the detergent builder.
Claim 66
Dependent Claim
20 words
The detergent composition as defined by claim 46, comprising from about 10 to 60 weight percent of the detergent builder.
Claim 67
Dependent Claim
18 words
The detergent composition as defined by claim 60, further comprising up to 30 weight percent of a whitener.
Claim 68
Dependent Claim
18 words
The detergent composition as defined by claim 61, further comprising up to 30 weight percent of a whitener.
Claim 69
Dependent Claim
18 words
The detergent composition as defined by claim 62, further comprising up to 30 weight percent of a whitener.
Claim 70
Dependent Claim
27 words
The detergent composition as defined by claim 24, wherein the surfactant is selected from the group consisting of an anionic surfactant, a non-ionic surfactant and mixtures thereof.
Claim 71
Dependent Claim
27 words
The detergent composition as defined by claim 27, wherein the surfactant is selected from the group consisting of an anionic surfactant, a non-ionic surfactant and mixtures thereof.
Claim 72
Dependent Claim
27 words
The detergent composition as defined by claim 31, wherein the surfactant is selected from the group consisting of an anionic surfactant, a non-ionic surfactant and mixtures thereof.
Claim 73
Dependent Claim
35 words
The detergent composition as defined by claim 66, wherein the surfactant is selected from the group consisting of sodium alkylbenzene-sulfonates, sodium stearate, sulfates of fatty alcohols, sulfates of polyethoxylated fatty alcohols, and polyethoxylated fatty alcohols.
Claim 74
Dependent Claim
35 words
The detergent composition as defined by claim 67, wherein the surfactant is selected from the group consisting of sodium alkylbenzene-sulfonates, sodium stearate, sulfates of fatty alcohols, sulfates of polyethoxylated fatty alcohols, and polyethoxylated fatty alcohols.
Claim 75
Dependent Claim
35 words
The detergent composition as defined by claim 68, wherein the surfactant is selected from the group consisting of sodium alkylbenzene-sulfonates, sodium stearate, sulfates of fatty alcohols, sulfates of polyethoxylated fatty alcohols, and polyethoxylated fatty alcohols.
Claim 76
Dependent Claim
30 words
The detergent composition as defined by claim 41, wherein the detergent builder is selected from the group consisting of sodium carbonate, sodium disilicate, sodium orthophosphate, sodium pyrophosphate and sodium tripolyphosphate.
Claim 77
Dependent Claim
30 words
The detergent composition as defined by claim 42, wherein the detergent builder is selected from the group consisting of sodium carbonate, sodium disilicate, sodium orthophosphate, sodium pyrophosphate and sodium tripolyphosphate.
Claim 78
Dependent Claim
30 words
The detergent composition as defined by claim 46, wherein the detergent builder is selected from the group consisting of sodium carbonate, sodium disilicate, sodium orthophosphate, sodium pyrophosphate and sodium tripolyphosphate.
Claim 79
Dependent Claim
14 words
The detergent composition as defined by claim 47, wherein the adjuvant is sodium perborate.
Claim 80
Dependent Claim
30 words
A fibrous textile substrate comprising a plurality of individual fibers, each of said fibers having sorbed thereon a soil-releasing amount of the linear, hydrophilic polyurethane as defined by claim 1.
Claim 81
Dependent Claim
30 words
A fibrous textile substrate comprising a plurality of individual fibers, each of said fibers having sorbed thereon a soil-releasing amount of the linear, hydrophilic polyurethane as defined by claim 5.
Claim 82
Dependent Claim
134 words
A fibrous textile substrate comprising a plurality of individual fibers, each of said fibers having sorbed thereon a soil-releasing amount of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 83
Dependent Claim
134 words
A fibrous textile substrate comprising a plurality of individual fibers, each of said fibers having sorbed thereon a soil-releasing amount of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 84
Dependent Claim
43 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water in the presence of an amount sufficient to impart said characteristics of the linear, hydrophilic polyurethane as defined by claim 1.
Claim 85
Dependent Claim
43 words
The method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of the linear, hydrophilic polyurethane as defined by claim 5.
Claim 86
Independent Claim
147 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 87
Independent Claim
147 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 88
Dependent Claim
42 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of the detergent composition as defined by claim 24.
Claim 89
Dependent Claim
42 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of the detergent composition as defined by claim 27.
Claim 90
Dependent Claim
42 words
A method of treating fiber-containing materials to impart soil-resistance, anti-soil redeposition and anti-static characteristics thereto, which comprises washing said materials with water, in the presence of an amount sufficient to impart said characteristics of the detergent composition as defined by claim 31.
Claim 91
Dependent Claim
37 words
A composition of matter which comprises a powder, said powder comprising from 10 to 90 weight percent of a mineral filler, and 90 to 10 weight percent of the linear, hydrophilic polyurethane as defined by claim 1.
Claim 92
Dependent Claim
37 words
A composition of matter which comprises a powder, said powder comprising from 10 to 90 weight percent of a mineral filler, and 90 to 10 weight percent of the linear, hydrophilic polyurethane as defined by claim 5.
Claim 93
Dependent Claim
141 words
A composition of matter which comprises a powder, said powder comprising from 10 to 90 weight percent of a mineral filler, and 90 to 10 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 94
Dependent Claim
141 words
A composition of matter which comprises a powder, said powder comprising from 10 to 90 weight percent of a mineral filler, and 90 to 10 weight percent of a linear, hydrophilic polyurethane having a relative viscosity of at least about 2, said polyurethane comprising the reaction product of: (a) from 10 to 70 weight percent of a polyester having a hydroxyl number of less than 120 mg KOH/g and an acid number of not more than 3 mg KOH/g, said polyester being the condensation product of a dicarboxylic acid or ester-forming derivative thereof with a diol; (b) from 30 to 90 weight percent of an isocyanato prepolymer having NCO terminal groups, said prepolymer being the reaction product of a nonionic hydrophilic macrodiol with a diisocyanate; and (c) wherein the overall ratio of NCO/OH groups ranges from between about 0.8 and 1.
Claim 95
Dependent Claim
31 words
The composition of matter as defined by claim 85, comprising from 40 to 70 weight percent of the mineral filler and 60 to 30 weight percent of the linear, hydrophilic polyurethane.
Claim 96
Dependent Claim
31 words
The composition of matter as defined by claim 86, comprising from 40 to 70 weight percent of the mineral filler and 60 to 30 weight percent of the linear, hydrophilic polyurethane.
Claim 97
Dependent Claim
31 words
The composition of matter as defined by claim 87, comprising from 40 to 70 weight percent of the mineral filler and 60 to 30 weight percent of the linear, hydrophilic polyurethane.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |