초록 ▼

Novel thickeners for oil-containing compositions are crystalline polymers, preferably side chain crystalline polymers, which (a) have a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7; (b) are soluble in the oil at temperatures above Tp, and

Novel thickeners for oil-containing compositions are crystalline polymers, preferably side chain crystalline polymers, which (a) have a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7; (b) are soluble in the oil at temperatures above Tp, and (c) have been dispersed in the oil by a process which comprises (i)dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution from step (i) to crystallize the polymer in the oil.

대표청구항 ▼

What is claimed is: 1. A thickened oil composition comprising (1) an oil, and (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7; (b) is soluble in the oil at temperatures above Tp, (c) ha

What is claimed is: 1. A thickened oil composition comprising (1) an oil, and (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7; (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution to crystallize the polymer in the oil, (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups, and which consists of (i) 50 to 100% by weight of units derived from at least one n-alkyl acrylate or methacrylate in which the n-alkyl group contains 12 to 50 carbon atoms, and (ii) 0 to 50% by weight of units derived from at least one alkyl acrylate or methacrylate in which the alkyl group is not an n-alkyl group containing 12 to 50 carbon atoms, and (e) is present in amount 3 to 10 % by weight; (ii) the composition being at a temperature below Tp. 2. A composition according to claim 1, wherein the SCC polymer consists essentially of units derived from an n-alkyl acrylate in which the n-alkyl group contains 14 to 22 carbon atoms. 3. A composition according to claim 1 which is at a temperature of 20 to 25째 C. and wherein Tp is more than 40째 C. 4. A composition according to claim 1 which is substantially free of water. 5. A composition according to claim 1 wherein Tp is 20-80째 C. 6. A composition according to claim 1, wherein Tp-To is less than 10째 C. 7. A composition according to claim 1 which contains 3 to 7% by weight of the SCC polymer. 8. A thickened oil composition comprising (1) at least one oil selected from the group consisting of hydrogenated polyisobutylene; triglycerides; purcellin oil; isopropyl myristate; butyl myristate; cetyl myristate; isopropyl palmitate; butyl palmitate; ethyl-2-hexyl palmitate; isopropyl stearate; butyl stearate; octyl hexadecyl stearate; isocetyl stearate; decyl oleate; hexyl laurate; propylene glycol dicaprylate; diisopropyl adipate; animal oils; oleyl alcohol; linoleyl alcohol; linolenyl alcohol; isostearyl alcohol; octyl dodecanol; esters derived from lanolic acid; acetyl glycerides; octanoates of glycol; octanoates of glycerol; decanoates of glycol; decanoates of glycerol; and cetyl ricinoleate; and (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution to crystallize the polymer in the oil, and (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups, and which consists of (i) 50 to 100% by weight of units derived from at least one n-alkyl acrylate or methacrylate in which the n-alkyl group contains 12 to 50 carbon atoms, and 0 to 50% by weight of units derived from at least one alkyl acrylate or methacrylate in which the alkyl group is not an n-alkyl group containing 12 to 50 carbon atoms; the composition being at a temperature below Tp. 9. A composition according to claim 8 wherein Tp is above 40째 C. 10. A composition according to claim 8 wherein Tp is 20-80째 C. 11. A composition according to claim 8 wherein Tp-To is less than 10째 C. 12. A composition according to claim 8 wherein the SCC polymer comprises a homopolymer of the n-alkyl acrylate in which the n-alkyl group contains 18 carbon atoms. 13. A composition according to claim 8 wherein the SCC polymer is a homopolymer of the n-alkyl acrylate in which the n-alkyl group contains 22 carbon atoms. 14. A composition according to claim 8 wherein the oil comprises a vegetable oil. 15. A composition according to claim 8 wherein the oil comprises at least one oil selected from the group consisting of sunflower seed oil, sesame seed oil, rape seed oil, sweet almond oil, calphyllum oil, palm oil, avocado oil, jojoba oil, olive oil, castor oil, and grain germ oils. 16. A composition according to claim 8 wherein the oil comprises at least one oil selected from the group consisting of perhydrosqualene, isopropyl lanolate and isocetyl lanolate. 17. A thickened oil composition which is a water-in-oil emulsion and which comprises (1) an oil, and (2) dispersed in the oil, a polymer which (a) has a crytalline melting point, Tp-To is less than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above the Tp, and (ii) cooling the solution to crystallize the polymer in the oil, and (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups; the composition being at a temperature below Tp. 18. A thickened oil composition which is a water-in-oil emulsion and which comprises (1) an oil, and (2) dispersed in the oil, a side chain crystalline (SCC) polymer which (a) has a crytalline melting point, Tp, of 20 to 80째 C., an onset of melting temperature, To, such that Tp-To is less than 10째 C., (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above the Tp, and (ii) cooling the solution to crystallize the polymer in the oil, (d) contains at least 80% by weight of repeating units containing a side chain comprising a linear polymethylene radical or a linear substantially perfluorinated polymethylene radical containing 6 to 50 carbon atoms, and (e) is substantially free or functional groups; the composition being at a temperature below Tp. 19. A composition according to claim 18, wherein Tp is 20-80째 C. 20. A composition according to claim 18, wherein the SCC polymer consists essentially of units derived from at least one n-alkyl acrylate or methacrylate in which the n-alkyl group contains 12 to 50 carbon atoms. 21. A composition according to claim 18 which contains 3 to 10% by weight of the SCC polymer. 22. A composition according to claim 18 which contains 3 to 7% by weight of the SCC polymer. 23. A thickened oil composition which is a lipstick, deodorant, nail varnish, sun cream, protective hand cream, night renewal cream, body milk, body lotion, light facial cream, protective day cream, or moisturizing emulsion; and which comprises (1) an oil, and (2) dispersed in the oil, a polymer which (a) has a crytalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is lesss than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above the Tp, and (ii) cooling the solution to crystallize the polymer in the oil, and (d) is a side chain crystalline (SCC) homopolymer which is substantially free of functional groups; the composition being at a temperature below Tp. 24. A thickened oil composition which is a lipstick, deodorant, nail varnish, sun cream, protective hand cream, night renewal cream, body milk, body lotion, light facial cream, protective day cream, or moisturizing emulsion, and which comprises (1) an oil, (2) dispersed in the oil, a polymer which (a) has a crytalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is lesss than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above the Tp, and (ii) cooling the solution to crystallize the polymer in the oil, and (d) is a side chain crystalline (SCC) homopolymer which is substantially free of functional groups, and which consist of (i) 50 to 100% by weight of units derived from at least one n-alkyl acrylate or methacrylate in which the n-alkyl group contains 12 to 50 carbon atoms, and (ii) 0 to 50% by weight of units derived from at least one alkyl acrylate or methacrylate in which the alkyl group is not an n-alkyl group containing 12 to 50 carbon atoms; the composition being at a temperature below Tp. 25. A composition according to claim 23, wherein the SCC polymer consists essentially of units derived from an n-alkyl acrylate or methacrylate in which the n-alkyl group contains 10 to 50 carbon atoms. 26. A composition according to claim 23 wherein the SCC polymer is present in amount 0.1 to 12% by weight, based on the weight of the oil. 27. A composition according to claim 23 which contains 3 to 10% by weight of the SCC polymer. 28. A composition according to claim 23 which contains 3 to 7% by weight of the SCC polymer. 29. A composition according to claim 23 wherein Tp is more than 40째 C. 30. A composition according to claim 23 wherein Tp is 20 to 80째 C. 31. A composition according to claim 23 which is at a temperature of 20 to 25째 C. and wherein Tp is 40-50째 C. 32. A composition according to claim 23, wherein Tp-To is less than 10째 C. 33. A composition according to claim 23 which is substantially free of water. 34. A thickened oil composition which is a pretanning lotion, sunscreen lotion, sun tan lotion, , after-sun lotion, makeup remover, hair-treating oil, hairdressing preparation, shampoo, foam bath, bath oil, skin cleanser, skin foundation, perfumed gel, mascara or eye makeup, and which comprises (1) an oil, and (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution to crystallize the polymer in the oil; and (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups; the composition being at a temperature which is below Tp. 35. A composition according to claim 34 which is substantially free of water. 36. A composition according to claim 34 wherein the SCC polymer is present in amount 0.1 to 12% by weight, based on the weight of oil. 37. A composition according to claim 34 which contains 3 to 10% by weight of the SCC polymer. 38. A composition according to claim 34 which contains 3 to 7% by weight of the SCC polymer. 39. A composition according to claim 34 wherein Tp is more than 40째 C. 40. A composition according to claim 34 wherein Tp is 20 to 80째 C. 41. A composition according to claim 34 which is at a temperature of 20 to 25째 C. and Tp is 40-50째 C. 42. A composition according to claim 35, wherein Tp-To is less than 10째 C. 43. A composition which comprises (1) an oil, (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution to crystallize the polymer in the oil; and (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups; and (3) at least one additive selected from the group consisting of sunscreen agents, deodorants, pharmaceuticals and antiseptic agents; the composition being at a temperature which is below Tp. 44. A composition according to claim 43 which is substantially free of water. 45. A composition according to claim 43 wherein the SCC polymer is present in amount 0.1 to 12% by weight, based on the weight of the oil. 46. A composition according to according to claim 43 which contains 3 to 10% by weight of the SCC polymer. 47. A composition according to claim 43 which contains 3 to 7% by weight of the SCC polymer. 48. A composition according to claim 43 wherein Tp is more than 40째 C. 49. A composition according to claim 43 wherein Tp is 20 to 80째 C. 50. A composition according to claim 43 which is at a temperature of 20 to 25째 C. and wherein Tp is 40-50째 C. 51. A composition according to claim 43 wherein Tp-To is less than 10째 C. 52. A composition according to claim 43 which is substantially free of water. 53. A thickened oil composition which comprises (1) a silicone oil, (2) dispersed in the oil, a polymer which (a) has a crystalline melting point, Tp, and an onset of melting temperature, To, such that Tp-To is less than Tp0.7, (b) is soluble in the oil at temperatures above Tp, (c) has been dispersed in the oil by a process which comprises (i) dissolving the polymer in the oil at a temperature above Tp, and (ii) cooling the solution to crystallize the polymer in the oil; and (d) is a side chain crystalline (SCC) polymer which is substantially free of functional groups; the composition being at a temperature which is below Tp.