Petrolatum Having Silicone-Like Properties
Novel petrolatums having silicone-like properties are disclosed. Silicone-free compositions containing the novel petrolatums also are disclosed.
1 . A petrolatum having properties of:
(a) a drop melting point (ASTM D127) of about 100° F. to about 125° F.;
(b) a cone penetration (ASTM D937) of about 250 to about 300 dmm;
(c) a dynamic viscosity at 25° C. of about 100,000 to about 200,000 centipoise, and
(d) at least one of
(i) a flow onset of about 45° C. or less;
(ii) a storage modulus at 0.1 Pa of about 50° C. or less, and
(iii) a complex viscosity at 0.1 Pa·S of about 45° C. or less.
2 . The petrolatum of claim 1 comprising
about 5% to about 20% saturated straight chain hydrocarbons with a carbon number distribution of about C 20 -C 45 ;
0% to about 20% saturated microcrystalline hydrocarbons with a carbon number distribution of about C 30 -C 90 ; and
about 60% to about 85% saturated branched and cycloparaffinic hydrocarbons within a carbon number distribution of about C 10 -C 50 .
3 . The petrolatum of claim 1 having at least two of (i), (ii), and (iii).
4 . The petrolatum of claim 1 having each of (i), (ii), and (iii).
5 . The petrolatum of claim 1 further having the properties of:
congealing point (ASTM D938) about 90° F. to about 98° F.; and
average molecular weight (ASTM D2502) about 300 to about 450.
6 . The petrolatum of claim 1 having a drop melting point of about 105° F. to about 120° F.
7 . The petrolatum of claim 1 having a cone penetration of about 270 to about 300 dmm.
8 . The petrolatum of claim 1 having a dynamic viscosity of about 125,000 to about 175,000 centipoise.
9 . The petrolatum of claim 1 having a flow onset of about 30° C. to about 45° C.
10 . The petrolatum of claim 1 having a storage modulus of about 35° C. to about 50° C.
11 . The petrolatum of claim 1 having a complex viscosity of about 35° C. to about 45° C.
12 . The petrolatum of claim 1 having the properties of
Congealing Point
(ASTM D938)
about 95
Drop Melting Point
(ASTM D127)
about 108
Cone Penetration
(ASTM D937)
about 298
Viscosity @ 25° C.
(Dynamic Viscometer)
about 150,000 cps
13 . The petrolatum of claim 12 further having one or more of a flow onset of about 40° C., a storage module of about 48° C., and a complex viscosity of about 36.5° C.
14 . The petrolatum of claim 12 further having the properties of
Lovibond Color, 3″ cell
(IP 17)
about 0.6
Viscosity @ 130° F., cSt
(ASTM D445)
about 11.3
Viscosity @ 210° F., cSt
(ASTM D445)
about 4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 24
Carbon Number @ 5% Point
(IP 507-4)
about 19
Average Molecular Weight
(ASTM D2502)
about 365
Refractive Index @ 130° F.
(ASTM D1218)
about 1.454
15 . The petrolatum of claim 1 having the properties of
Congealing Point
(ASTM D938)
about 93
Drop Melting Point
(ASTM D127)
about 105
Cone Penetration
(ASTM D937)
about 273
Viscosity @ 25° C.
(Dynamic Viscometer)
about 150,000 cps
16 . The petrolatum of claim 15 further having one or more of a flow onset of about 37° C., a storage module of about 39.5° C., and a complex viscosity of about 42° C.
17 . The petrolatum of claim 15 further having the properties of
Lovibond Color, 3″ cell
(IP 17)
about 0.3
Viscosity @ 130° F., cSt
(ASTM D445)
about 11.9
Viscosity @ 210° F., cSt
(ASTM D445)
about 4.4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 26
Carbon Number @ 5% Point
(IP 507-4)
about 19
Average Molecular Weight
(ASTM D2502)
about 410
Refractive Index @ 130° F.
(ASTM D1218)
about 1.456
18 . The petrolatum of claim 1 having the properties of:
Congealing Point
(ASTM D938)
about 92
Drop Melting Point
(ASTM D127)
about 115
Cone Penetration
(ASTM D937)
about 278
Viscosity @ 25° C.
(Dynamic Viscometer)
about 150,000 cps
19 . The petrolatum of claim 18 having one or more of a flow onset of about 32° C., a storage modulus of about 39° C., and a complex viscosity of about 36° C.
20 . The petrolatum of claim 18 further having the properties of
Lovibond Color, 3″ cell
(IP 17)
about 0.2
Viscosity @ 130° F., cSt
(ASTM D445)
about 11
Viscosity @ 210° F., cSt
(ASTM D445)
about 4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 30
Carbon Number @ 5% Point
(IP 507-4)
about 15
Average Molecular Weight
(ASTM D2502)
about 380
Refractive Index @ 130° F.
(ASTM D1218)
about 1.452
21 . A composition comprising a petrolatum of claim 1 and a carrier, wherein the composition is free of a silicone.
22 . The composition of claim 21 wherein the carrier comprises water.
23 . The composition of claim 21 wherein after an application of the composition to skin or hair, the skin or hair exhibits essentially identical sensory properties as skin or hair treated with an identical composition containing a corresponding silicone fluid as a substitute for the petrolatum of claim 1 , and in the same weight amount as the petrolatum of claim 1 .
24 . The composition of claim 23 wherein the petrolatum has properties of
Congealing Point
(ASTM D938)
about 95
Drop Melting Point
(ASTM D127)
about 108
Cone Penetration
(ASTM D937)
about 298
Lovibond Color, 3″ cell
(IP 17)
about 0.6
Viscosity @ 130° F., cSt
(ASTM D445)
about 11.3
Viscosity @ 210° F., cSt
(ASTM D445)
about 4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 24
Carbon Number @ 5% Point
(IP 507-4)
about 19
Average Molecular Weight
(ASTM D2502)
about 365
Refractive Index @ 130° F.
(ASTM D1218)
about 1.454
Viscosity @ 25° C.
(Dynamic
about 150,000 cps
Viscometer)
Flow Onset
about 31.7° C.
Storage Modulus at 0.1 Pa
about 47.4° C.
Complex Viscosity at 0.1 Pa · s
about 36.3° C.
and the corresponding silicone fluid is a dimethicone (200 centistokes).
25 . The composition of claim 23 wherein the petrolatum has properties of
Congealing Point
(ASTM D938)
about 93
Drop Melting Point
(ASTM D127)
about 105
Cone Penetration
(ASTM D937)
about 273
Lovibond Color, 3″ cell
(IP 17)
about 0.3
Viscosity @ 130° F., cSt
(ASTM D445)
about 11.9
Viscosity @ 210° F., cSt
(ASTM D445)
about 4.4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 26
Carbon Number @ 5% Point
(IP 507-4)
about 19
Average Molecular Weight
(ASTM D2502)
about 410
Refractive Index @ 130° F.
(ASTM D1218)
about 1.456
Viscosity @ 25° C.
(Dynamic
about 150,000 cps
Viscometer)
Flow Onset
about 36.7° C.
Storage Modulus at 0.1 Pa
about 39.4° C.
Complex Viscosity at 0.1 Pa · s
about 42.0° C.
and the corresponding silicone fluid is a dimethicone (350 centistoke), a dimethicone (500 centistoke), or a mixture thereof.
26 . The composition of claim 23 wherein the petrolatum has properties of
Congealing Point
(ASTM D938)
about 92
Drop Melting Point
(ASTM D127)
about 115
Cone Penetration
(ASTM D937)
about 278
Lovibond Color, 3″ cell
(IP 17)
about 0.2
Viscosity @ 130° F., cSt
(ASTM D445)
about 11
Viscosity @ 210° F., cSt
(ASTM D445)
about 4
Specific Gravity @ 60° C./25° C.
(ASTM D1298)
about 0.82
Saybolt Color
(ASTM D156)
about 30
Carbon Number @ 5% Point
(IP 507-4)
about 15
Average Molecular Weight
(ASTM D2502)
about 380
Refractive Index @ 130° F.
(ASTM D1218)
about 1.452
Viscosity @ 25° C.
(Dynamic
about 150,000 cps
Viscometer)
Flow Onset
about 31.7° C.
Storage Modulus at 0.1 Pa
about 39.0° C.
Complex Viscosity at 0.1 Pa · s
about 35.9° C.
and the corresponding silicone fluid is a cyclopentasiloxane, a cyclohexasiloxane, a dimethicone (50 centistokes), a dimethicone (100 centistokes), or a mixture thereof.