Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
208 words
-1. A soil release composition comprising: (A) a polymer containing 10 to 100 % by weight of constituting unit of the formula: wherein R f Is a C 3 -C 21 fluoroalkyl group; R 1 is a hydrogen atom or a C 2 -C 4 acyl group; R 2 , R 3 , R 4 and R 5 are, the same or different, each a hydrogen atom, a methyl group or an ethyl group; A is a group of the formula: -CH 2 CH(OR 1 )CH 2 -OCO- in which R 1 is the same as defined in the above, -CO-, -(CH 2 ) k N(R 2 )CO- in which R 2 is the same as defined in the above and k is an integer of 1 to 10, or -(CH 2 ) k - in which k is the same as defined in the above; h is an integer of 0 to 5; p is an integer of 1 to 40;=q and r are, the same or different, each an integer of 0 to 40, (B) a hydrophiic resin, and (C) optionally a water- and oil-repellent, a weight ratio of (A) : (B) : (C) being 5-95 : 95-5 : 0 or 1-95 : 5-95 : 1-50.
Claim 2
Dependent Claim
32 words
The soil release composition according to claim 1, which comprises 5 to 95 parts by weight of the polymer (A) and 95 to 5 parts by weight of the hydrophilic resin (B).
Claim 3
Dependent Claim
24 words
The soil release composition according to claim 2, wherein the polymer (A) comprises 20 to 80 % by weight of the constituting units (I).
Claim 4
Dependent Claim
26 words
The soil release composition according to claim 2 9 wherein the weight ratio of the polymer (A) and the hydrophilic resin (B) is 5-80 : 95-20.
Claim 5
Dependent Claim
24 words
The soil release composition according to claim 2, wherein the weight ratio of the polymer (A) and the hydrophilic resin (B) is 20-90 :80-10.
Claim 6
Dependent Claim
44 words
The soil release composition according to claim 1, which comprises 1 to 95 parts by weight of the polymer (A), 5 to 95 parts by weight of the hydrophilic resin (B) and 1 to 50 parts by weight of the water- and oil-repellent (C).
Claim 7
Dependent Claim
24 words
The soil release composition according to claim 6, wherein the polymer (A) comprises 20 to 90 % by weight of the constituting unit (I).
Claim 8
Dependent Claim
44 words
The soil release composition according to claim 7, which comprises 5 to 90 parts by weight of the polymer (A), 10 to 80 parts by weight of the hydrophilic resin (B) and 2 to 40 parts by weight of the water- and oil-repellent (C).
Claim 9
Dependent Claim
35 words
The soil release composition according to claim 1, wherein the number of the fluorine atoms of the group R f is at least twice larger ` than that of the carbon atoms of said group.
Claim 10
Dependent Claim
20 words
The soil release composition according to claim 1, wherein the polymer (A) is a homopolymer of the constituting unit (I).
Claim 11
Dependent Claim
243 words
The soil release composition according to claim 1, wherein the polymer (A) is a copolymer comprising the constituting units (I) and constituting units derived from at least one comonomer selected from the group consisting of vinyl chloride, vinyl acetate, styrene, a-methylstyrene, methyl vinyl ketone, acrylic or methacrylic acid or its derivative of the formula: wherein R 6 is a hydrogen atom or a methyl group; R 7 is a hydrogen atom, a sodium atom, a potassium atom, an ammonium group, a C 1 -C 18 alkyl group, a glycidyl group or a group of the formula: -(CH 2 CH 2 O) p R 8 in which R 8 is a hydrogen atom, a C 1 -C 18 alkyl group or a C 2 -C 18 acyl group and.p is the same as defined in the above, -(CH 2 CH 2 O) p -(CH 2 CH(CH 3 )O) q -(CH 2 CH 2 O) r -R 8 in which R 8 , p, q and r are the same as defined in the above or -R 9- OH in which R 9 is a C 2 -C 6 alkylene group; and acryl- or methacryl-amide or its derivative of the formula: wherein R 6 is the same as defined in the above, R 10 is a hydrogen atom or a group of the formula: -CH 2 0H or -(CH 2 )p-N(CH 3 ) 2 in which p is the same as defined in the above.
Claim 12
Dependent Claim
93 words
The soil release composition according to claim 6, wherein the water- and oil-repellent (C) is a copolymer of an acrylic acid derivative of the formula: wherein R f is the same as defined in the above and X is an oxygen atom or a sulphur atom, and an acrylic or methacrylic acid or its derivative of the formula: wherein R 6 is the same as defined in the above and R 11 is a hydrogen atom, a sodium atom, a potassium atom, an ammonium group or a C 1 -C 18 alkyl group.
Claim 13
Dependent Claim
35 words
A method for imparting soil release property to a substrate comprising applying a soil release composition of claim 1 mixed in a liquid medium and drying it to remove the liquid medium from the substrate.