摘要:
A method for the provision of a recallable hair transformation using shape-memory polymers is disclosed. In this respect a composition which comprises a macromer or prepolymer which is cross-linkable to a shape-memory polymer is applied onto the hair and the hair is brought into a defined (permanent) shape and subsequently the permanent shape is fixed by means of the chemical cross-linking of the macromer or prepolymer under formation of the shape-memory polymer. The macromer or prepolymer contains segments which are cross-linkable by means of chemical bonds as well as thermoplastic segments which are not chemically cross-linkable. The shape-memory polymers do possess at least one transition temperature TTrans. In addition to the permanent shape of a hairdo a second (temporary) shape can be impressed. Furthermore, disclosed is a method for the recovery of a previously programmed, permanent shape of a hairdo, which has been temporarily brought into a temporary form or which has been deformed in a different manner.
摘要:
Disclosed is a method for achieving a recallable hair deformation. A composition is applied onto hair, comprising at least one active agent, which, alone or in combination with further compounds, is able, after application to the hair and after carrying out the treatment of hair in accordance with the present invention, to provide a shape memory effect. The hair is brought into a defined (permanent) shape and the permanent shape is subsequently fixed by means of inducing a chemical or physical change of the applied agents, wherein after a desired or undesired deformation, the memory shape of the initial memory shape may be recovered by means of a physical stimulation. Suitable active agents are for example macromers which may be cross-linked to provide shape memory polymers, wherein the permanent shape is fixed by means of the chemical cross-linking of the macromer, providing a shape memory polymer, which possesses at least one transition temperature Ttrans. Suitable active agents are also shape memory polymers, which have hard segments which may be cross-linked by physical interactions having a first transition temperature T′trans, which preferably is at least 10° C. above room temperature, and soft segments having a second transition temperature which preferably is at least 10° C. below T′trans. In addition to the permanent hairdo, a second (temporary) shape can be impressed. Furthermore, disclosed is a method for the recovery of a once programmed permanent hairdo, which has been brought into a temporary shape or which has been deformed in any other way.
摘要:
Disclosed is a method for achieving a recallable hair deformation. A composition is applied onto hair, comprising at least one first active principle or active complex, which, alone or in combination with further compounds, is able, after application to the hair and after carrying out the treatment of hair in accordance with the present invention, to provide a shape memory effect. The composition comprises at least one second active principle, which is a cationic agent. The hair is brought into a defined (permanent) shape and the permanent shape is subsequently fixed by means of inducing a chemical or physical change of the applied agents, wherein after a desired or undesired deformation, the memory shape of the initial memory shape may be recovered by means of a physical stimulation. In addition to the permanent hairdo, a second (temporary) shape can be impressed. Furthermore, disclosed is a method for the recovery of a once programmed permanent hairdo, which has been brought into a temporary shape or which has been deformed in any other way.
摘要:
A method for detecting a safety-critical impact of an object on a vehicle is described. The method has a first step of obtaining a starting signal for starting a time measurement, to establish the start of a subsequent predetermined time span. In addition, the method has a step of receiving a signal representing a yaw acceleration of the vehicle, the signal being received during the predetermined time span. Finally, the method has a step of detecting the safety-critical impact of the object on the vehicle detecting the safety-critical impact of an object on the vehicle when the signal within the predetermined time span has a value that is outside a threshold value range or when the signal after the predetermined time span has a value derived from the signal that is outside of a threshold value range.
摘要:
A device and a method for triggering passenger protection devices, an accident sensor system generating a first signal and the passenger protection devices being triggered as a function of a frequency of a second signal, which is derived from the first signal, the frequency being determined as a function of a first length of a first signal characteristic of the second signal and of a second length of a second signal characteristic of the added-up second signal.
摘要:
The subject of the invention is a composition and a method for permanent hairwaving, in which 1-thio-.beta.-D-glucose or its salts are used as keratin-reducing active ingredients.The composition affords a gentle and even shaping of the hair in a skin- and hair protective pH range of 7.0 to 8.5, without causing allergic and sensitizing reactions.
摘要:
The aqueous hair- and body-treatment composition having physiological and dermatological compatibility properties as well as a germ-inhibiting effect contains from 0.1 to 50 percent by weight of a surfactant or a surfactant mixture, from 0.01 to 2.0 percent by weight of sodium formate, ammonium formate, potassium formate or magnesium formate, from 0.05 to 2.0 percent by weight of a sorbic acid element selected from the group consisting of sorbic acid and salts of sorbic acid, including alkali metal salts of sorbic acid, particularly sodium sorbate, and from 0.1 to 1.5 percent by weight of phosphoric acid or an aliphatic organic acid containing from 2 to 6 carbon atoms and being free of amino and halogen substituents. A method of preserving an aqueous hair- and body-cleaning composition is also described.
摘要:
Cosmetic compositions are disclosed for the treatment of hair or skin, characterized by a content of new quaternary chitosan derivatives of the formula ##STR1## Also disclosed are the new quaternary chitosan derivatives per se as well as processes for their preparation. The chitosan derivatives have a good substantivity, particularly to hair keratin, and prove to have hair strengthening and hair conditioning characteristics.
摘要翻译:公开了用于治疗毛发或皮肤的化妆品组合物,其特征在于式HO [C6H11-mNO4(R1)m(R2)n(R3)q] pH(I)(m = 0)的新季壳聚糖衍生物的含量 -0.5; n = 0.01-6; q = 0.005-3; p = 10-50,000 R1 =乙酰基; R2 = CH2CH2O R4 = C1 C4烷基; X = Cl,Br,I或CH3SO4) 季戊四醇衍生物本身以及它们的制备方法。 壳聚糖衍生物具有良好的亲和力,特别是头发角蛋白,并证明具有头发强化和头发调理特性。
摘要:
Cosmetic compositions are disclosed for the treatment of hair or skin, characterized by a content of new quaternary chitosan derivatives of the formulaHO[C.sub.6 H.sub.11-m NO.sub.4 (R.sup.1).sub.m (R.sub.2).sub.n (R.sup.3).sub.q ].sub.p H (1)(m=0-0.5; n=0.01-6; q=0.005-3; p=10-50,000 ##STR1## Also disclosed are the new quaternary chitosan derivatives per se as well as processes for their preparation. The chitosan derivatives have a good substantivity, particularly to hair keratin, and prove to have hair strengthening and hair conditioning characteristics.
摘要翻译:公开了用于治疗毛发或皮肤的化妆品组合物,其特征在于式HO [C6H11-mNO4(R1)m(R2)n(R3)q] pH(1)(m = 0)的新型季戊四醇衍生物的含量 -0.5; n = 0.01-6; q = 0.005-3; p = 10-50,000 R4 = C1-C4烷基; X = Cl,Br,I或CH3SO4)还公开了新的四甲基壳聚糖衍生物 本身以及它们的制备过程。 壳聚糖衍生物具有良好的亲和力,特别是头发角蛋白,并证明具有头发强化和头发调理特性。
摘要:
Cosmetic compositions useful for treatment of hair or skin contain macromolecular glyceryl-chitosan having(a) 4-40 Mol-% units of the Formula (I) ##STR1## and (b) 60-96 Mol-% units of the Formula (II) ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are ##STR3## wherein R.sub.4 and R.sub.5 are the same or different and are ##STR4## wherein either X=H and Y=CH.sub.2 OH, or Y=H and X=CH.sub.2 OH and n=2 to 5, with the proviso that for at least half of the units of the formula II, R.sub.1, R.sub.2 and R.sub.3 are not uniformly H, or their salts with organic or inorganic acids, in a suitable cosmetic carrier. Also disclosed are the compounds per se and a process for their production wherein chitosan composed of 60-96% entacetylated chitin is reacted with glycidol.