摘要:
This invention relates to superior bioadhesive compositions having time extended adhesive properties comprising a non-toxic carrier and a polymer having between about 45 and about 70 weight % of units having the structure ##STR1## between about 50 and about 30 weight % of units having the structure ##STR2## and 2 to 7 weight % of an amine salt containing a lactam functionally derived from A and/or B, wherein R is hydrogen, alkoxy, phenyl, carboxy or --N lactam having from 3 to 6 carbon atoms; R.sub.1 is C.sub.1 to C.sub.6 alkylene and R.sub.2 is C.sub.2 to C.sub.4 alkylene; said copolymer having a number average molecular weight of about 40,000 to about 500,000 and a relatively small particle size. The invention also relates to the method of synthesizing and using the above composition.
摘要:
This invention relates to superior bioadhesive compositions having time extended adhesive properties comprising a non-toxic carrier and a polymer having between about 45 and about 70 weight % of units having the structure ##STR1## between about 50 and about 30 weight % of units having the structure ##STR2## and 2 and 7 weight % of an amine salt containing a lactam functionality derived from A and/or B, wherein R is hydrogen, alkoxy, phenyl, carboxyl or --N lactam having from 3 to 6 carbon atoms; R.sub.1 is C.sub.1 to C.sub.6 alkylene and R.sub.2 is C.sub.2 to C.sub.4 alkylene; said copolymer having a number average molecular weight of about 40,000 to about 500,000 and a relatively small particle size. The invention also relates to the method of synthesizing and using the above composition.
摘要:
A composition containing an adhesive suitable for affixing dentures or ostomy devices to a mucous membrane, which adhesive is a mixture composed of(a) 75-25 wt. % of a blend comprising a divalent calcium salt and a monovalent sodium salt of a lower alkyl vinyl ether/maleic acid copolymer wherein the concentration of Ca is between about 10 and 15 wt. % of the blend; Na is between about 1.5 and about 4 wt. % of the blend and --COOH is between about 9 and about 25 wt. % of the blend;(b) 0-10 wt. % of a lower alkyl vinyl ether/maleic acid auxiliary metal salt wherein said metal is divalent magnesium and/or monovalent potassium and wherein said auxiliary metal represents between about 1.5 and about 15 wt. % of said auxiliary metal salt compound and(c) 25-75 wt. % of a stearic acid metal salt wherein said metal salt is magnesium stearate containing from 0% to about 75% sodium stearate.The invention also relates to the use of said composition as an adhesive used in association with mucous membranes.
摘要:
The invention relates to properties and uses of N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having the formula ##STR1## wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8 to 27 carbon atoms, most preferably micelle forming pyrrolidones having 12 to 16 carbon atoms in the R' group. The invention particularly relates to the uses of the N-hydrocarbon substituted lactams which involve surfactant properties, such as solubility, wetting, viscosity building, emulsifying and/or complexing properties.
摘要:
The invention relates to properties and uses of N-hydrocarbon substituted lactams, particularly N-alkyl substituted lactams having the formula ##STR1## wherein R' is a hydrophobic radical such as linear or branched chain alkyl group containing from 8 to 27 carbon atoms, most preferably micelle forming pyrrolidones having 12 to 16 carbon atoms in the R' group. The invention particularly relates to the uses of the N-hydrocarbon substituted lactams which involve surfactant properties, such as solubility, wetting, viscosity building, emulsifying and/or complexing properties.
摘要:
Skin conditioning compositions comprising a C4 to C30 monoalkyl-, dialkyl, monoalkanoyl- or dialkanoyl-substituted isohexide are found to exhibit a marked effect on skin hydration and barrier function homeostasis thereby improving skin appearances.
摘要:
Sunscreen compositions are provided for protecting skin from sun-induced damage comprising (i) at least one UV-B or UV-A/UV-B sunblock active, (ii) at least one meroterpene and (iii) a dermatological acceptable carrier. Preferably, the sunblock active will be a UV-A/UV-B sunblock active or said sunscreen compositions will further comprise at least one UV-A sunblock active. Suitable meroterpenes include plant extracts having one or more meroterpene-enriched fractions, especially suited are Bakuchiol and derivatives of Bakuchiol. These skin protective compositions may optionally include an effective amount of one or more skin protective ingredients such as antioxidants, vitamins, anti-inflammatory agents, self-tanning agents and mixtures thereof.
摘要:
Compounds of Formula I Each R is independently linear or branched C1 to C8 alkyl, or linear or branched C1 to C8 alkoxy or one R is H and the other R is linear or branched C1 to C8 alkyl, or linear or branched C1 to C8 alkoxy; R1 is selected from the group consisting of COCH3, CO2R3, CONH2, CONH(R4)2, CN, COX(CH2)n-N—(R2)(R4)(R3), and the quaternized salt form of the formula COX(CH2)n-N—(R2)(R4)(R3)+Y−; X is O or NH; n is an integer of 1 to 5; Y is an anion; and R2, R3 and R4 are independently linear or branched C1 to C20. Hair care formulations and other compounds containing compounds of Formula I, and methods for protecting hair and substrates such as polymers, textiles, fabrics, leathers and paints using the compounds herein.
摘要:
A compound of formula I wherein A is a moiety which provides UV absorbing activity to the compound of formula I that comprises 1 divalent group or 2 monovalent groups, with at least one group having carbonyl (C═O) functionality, and each R is independently linear or branched C1-C8 alkyl. Sunscreen formulations which contain these compounds and methods using these compounds to prepare formulations are also provided.