Straight-oil finishing composition and fiber yarn treated therewith
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsMari Wakita, Hisataka Nakashima, Hideki Kobayashi
Life of this patent
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Abstract
The invention relates to a straight-oil finishing composition comprising (A) 100 parts by weight of a polydimethylsiloxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25 centigrade temperature; and (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups and wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2. This composition is useful for treating fiber yarn.
Claims13
A straight-oil finishing composition comprising
- (A) 100 parts by weight of a polydimethylsiioxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25° C.;
- and
- (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups, wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2, and wherein the amount of silanol groups is greater than the amount of the silicon-bonded alkoxy groups.
A straight-oil finishing composition comprising
- (A) 100 parts by weight of a polydimethylsiioxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25° C.:
- and
- (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups, wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2, and wherein said silicon-bonded alkoxy groups are alkoxy groups having 3 to 8 carbon atoms.
A straight-oil finishing composition comprising
- (A) 100 parts by weight of a polydimethylsiioxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25° C.;
- and
- (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups and wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2;
- and
- where said component (B) contains both siloxane units represented by formula C3H7SiO3/2 and C3H7(HO)a(R′O)bSiO(3-a-b)/2, wherein 20-95 mole % of all siloxane units are siloxane units represented by formula C3H7SiO3/2 and 5-80 mole % of all siloxane units are siloxane units represented by formula
- C3H7(HO)a(R′O)bSiO(3-a-b)/2,
- where each R′ is independently selected from alkyl groups having 1 to 8 carbon atoms and alkyloxyalkylene groups having 1 to 8 carbon atoms, 0<a≦2, 0<b≦2, 0<(a+b)≦2.
A straight-oil finishing composition comprising
- (A) 100 parts by weight of a polydimethylsiioxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25° C.;
- and
- (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups, wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2, and where said component (B) is represented by the following average constitutional formula:
- (C3H7SiO3/2)x[C3H7(HO)a(R′O)b SiO(3-a-b)/2]y{RcSiO(4-c/2)}z,
- where each R′ is independently selected from alkyl groups having 1 to 8 carbon atoms and alkyloxyalkylene groups having 1 to 8 carbon atoms, and each R is independently selected from phenyl groups, alkyl groups having 1 to 10 carbon atoms, hydroxyl groups, and alkoxy groups, 0<a≦2, 0<b≦2, 0<(a+b)≦2, c is between 0 and 3, x>0, y>0, z≧0, (x+y+z)=1, and x/(x+y+z)≧0.2.
A fiber yarn treated with the straight-oil finishing composition comprising
- (A) 100 parts by weight of a polydimethylsiioxane oil or liquid paraffin having a viscosity of 3 to 70 mm2/s at 25° C.;
- and
- (B) 0.5 to 100 parts by weight of an organopolysiloxane resin, which contains silanol groups and silicon-bonded alkoxy groups and wherein 20 mole % or more of all siloxane units are siloxane units represented by formula C3H7SiO3/2.
Dependencies are inferred from the claim text.