Parte del contenido de esta aplicación no está disponible en este momento.
Si esta situación persiste, contáctenos aComentarios y contacto
1. (WO2019030393) PHOTOSENSITIVE MICROCAPSULES
Nota: Texto obtenido mediante procedimiento automático de reconocimiento óptico de caracteres.
Solo tiene valor jurídico la versión en formato PDF

CLAIMS

What is claimed is:

1. A photosensitive microcapsule comprising

a. a core material comprising a benefit agent; and

b. a shell comprising a photosensitive polymer;

wherein the photosensitive polymer comprises a photosensitive moiety comprising a structure selected from the group consisting of


and combinations thereof;

wherein R is selected from alkyl, substituted alkyl, alkoxy, substituted alkoxy, carboxy, carboxyl, substituted carboxyl, aryl, substituted aryl, or a carbon atom of a polymer backbone;

wherein R6 and R9 comprise a 1 ,3 dione moiety.

The photosensitive microcapsule of claim 1 wherein R6 is selected from the group consisting of


wherein R? and R* arc independently selected from the group consisting of H, alkyl. substituted alkyl, aryl, and substituted aryl .

3. The photosensitive microcapsule of claim 1 wherein R9 is selected from the group consisting of


wherein R? and Rs are independently selected from the group consisting of H. alkyl, substituted alkyl, aryl, and substituted aryl.

4. The photosensitive microcapsule according to any one of the preceding claims, wherein the photosensitive moiety is incorporated in a monomer that is polymerized to form the photosensitive polymer, wherein the monomer comprises at least one acrylate reactive group hav ing the formula:


Ri4 is H or CH3;

selected from the group consisting of


wherein

Rz is selected from the group consisting of


wherein R ", R" and R'" are each independently selected from the group consisting of H and CH3;

wherein a, i, j and 1 are each integers independently selected from 0 to 3; and

wherein c, d, e, f and h are each integers independently selected from 1 to 3.

5. The photosensitive microcapsule according to claim 4, wherein the monomer is selected from the group consisting of: 2-(tert-butyl(( 1 E.3Z)-5-(2.2-dimethy!-4.6-dioxo- 1 .3- dioxan-5-yiidene)-4-hydroxypenta-l ,3-dien-l-yl)amino)ethyi methacryiate; 5-((2Z,4E)-2- hydroxy-5-(methyi(3-methyi-2-oxobut-3-en-l -yi)amino)penta-2,4-dien-l-ylidene)-2,2- dimethyi-l ,3-dioxane-4,6-dione; 5-((2Z,4E)-5-(cyciopropyl(4-methyi-3-oxopent-4-en-l - y I )am i no )-2-hydrox ypen ta-2 ,4-d ien- 1 -yiidene)-2,2-dimethyl- 1 ,3-dioxane-4,6-dione; 5- ((2Z,4E)-2-hydroxy-5 -(4-(4-methyl-3-oxopent-4-en- 1 -yi)piperidin- 1 -yi)penta-2,4-dien- 1 - ylidene)-2,2-dimethyi-l ,3-dioxane-4,6-dione; 2-(tert-butyl((lE,3Z)-4-hydroxy-5-(l , 2,2,3- tetramethyi-4,6-dioxotetrahydropyrimidin-5(2H)-ylidene)penta-l ,3-dien-l- yl)amino)ethyl methacrylate; 2-(tert-biityl(( 1 E,3Z )-5-( 1 .3-dibutyl-2,2-dimethyl-4.6- dioxotetrahydropyrimidin-5(2H)-ylidene)-4-hydroxypenta-l ,3-dien-l~yl)amino)ethyl methacrylate; 5 -((2Z,4E)-5 -((2-ethyl-4-hydroxybutyl)(2-hydroxyethyi)amino)-2- hydroxypenta-2,4-dien-l-yiidene)-2,2-dimethyl-l ,3-dioxane-4,6-dione; 5-((2Z,4E)-5- (bis(2-hydroxyethyl)amino)-2-hydroxypenta-2,4-dien-l-yiidene)-2,2-dimethyl-l ,3-

dioxane-4,6-dione; 4,4'-(((lE,3Z)-5-(2,2-dimethyl-4,6-dioxo-l ,3-dioxan-5-ylidene)-4- hydroxypenta- 1 .3-dicn- 1 -yl )azanediyl )dibutanal , and mixtures thereof.

6. The photosensitive microcapsule according to any of the preceding claims, wherein the photosensitive polymer comprises the following structure


w herein m + g > 0 and (n + k)/(m + g) > 1 ;

wherein Ri is selected from H, al kyl , substituted alkyl , al koxy, substituted al koxy, aryl , substituted aryl, carboxy, carboxyl. substituted carboxyl, or nitri lc;

wherein D = N or O;

w herein for D = N: L is a l inker group contain ing at least one carbon atom and

Qi is the photosensitive moiety:

w herein J = OH , OR12, I?, NHR12, or NR12R13;

w herein R12 and R13 arc independently selected from al kyl, substituted alkyl, alkoxy, aryl ,

7. The photosensitive microcapsule according to claim 6, wherein Ri is an aryl group.

8. The photosensitive microcapsule according to claim 6 or 7, wherein L comprises the following formula


wherein v is an integer from 1 -20; and

wherein R3 and R4 can be independently selected from the group consisting of H, alkyl, substituted alkyl, allyl, substituted allyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, phenyl, substituted phenyl, aryi, substituted aryl, heteroaryi, substituted hetei'oaryl, halo, hydroxy!, alko y, substituted alkoxy, alloxy, alkylthio, substituted alkylthio, phenylthio, substituted phenyl thio, arylthio, substituted arylthio, carbonyl, substituted carbonyl, carboxyl, substituted carboxyl, amino, substituted amino, amido, substituted amido, sulfonyi, substituted suifonyi, C1-C20 cyclic, substituted C1-C20 cycl ic, heterocycl ic, and substituted heterocycl ic groups.

9. The photosensitive microcapsule according to claim 6, 7, or 8, wherein the photosensitive polymer comprises from 1% to 25%, preferably from 2% to 15%, more preferably from 3%> to 10%), of cross-linked funct ional groups.

The photosensitive microcapsule according to claim 1 , 2, or 3, wherein the photosensitive olymer comprises the following structure


wherein m+g > 0 and n > 0;

wherein Ri is selected from H, alkyl, substituted alkyl, alkoxy, substituted alkoxy, a yl, substituted aryl, carboxy, carboxyl, substituted carboxyl, or nitrile;

wherein R2 is selected from H or CH3;

wherein D = N or O;

wherein for D = N: L is a l inker group containing at least one carbon atom and

Qi is the photosensitive moiety;

wherein J = OH, OR12, NH2, NHR12, or NR Ris;

wherein R12 and R13 are independently selected from alkyl, substituted alkyl. alkoxy, aryl, or L-Qi .

1 1 . The photosensitive microcapsule according to claim 1 , 2, or 3, wherein the photosensitive polymer comprises the following structure


wherein Z = Qi or C\

wherein A = Ri or A = Qi when Z = CH2;

wherein Qi is the photosensitive moiety;

wherein Ri is selected from H, alkyl, substituted alkyl, alkoxy, substituted alkoxy, a yl, substituted aryl, carboxy, carboxyl, substituted carboxyi, nit rile, siloxy alkyl, or ilo alkyl .

12. The photosensitive microcapsule of any of the preceding claims com rising from 1 wt% to 95 wt%, preferably from 5 wt% to 80 wt%, more preferably from 10 wt% to 50 wt%, of the photosensitive moiety.

13. The photosensitive microcapsule of any of the preceding claims wherein the benefit agent is selected from the group consisting of a perfume, a biocontrol agent, a dye, a silicone, a flavor, a skin care agent, a sunscreen agent, a sensate, a pharmaceutically active ingredient, and combinations thereof.

14. A method of releasing a core material from the photosensitive microcapsule of any of the preceding claims comprising: exposing the photosensitive microcapsule to an electromagnetic radiation field selected from the group consisting of infrared radiation, visible l ight, ultraviolet radiation, and mixtures thereof.

15. The method of claim 14 wherein the electromagnetic radiation field comprises a wavelength of from 200 ran to 1000 nm, preferably from 300 ran to 900 nm, more preferably from 400 ra to 750 ran.

16. A composition comprising one or more photosensitive microcapsules according to claim 1 and an adjunct ingredient.

17. The composition of Claim 1 6, comprising, based on total composition weight, from 0.1% to 25% of photosensitive microcapsules.