Coating compositions and coated substrates for articles of manufacture used in contact with human body surfaces
View Patent ↗A composition of matter includes a flexible substrate and a coating disposed on the substrate. The coating comprises about 10-60 wt-% of a waxy compound and about 90-40 wt-% of a diluent. The coating forms a stable liquid mixture at a temperature between about 35° C. and about 100° C., has a liquefaction temperature of at least about 30° C., and has a contact angle with a flat surface of the substrate of less than about 35° when measured at a temperature of 60° C.
1. A composition of matter comprising:
a) a flexible substrate;
b) a coating disposed on the substrate, wherein the coating comprises:
i) about 10-60 wt-% of a waxy compound selected from the group consisting of:
A) monoesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said monoester has at least one hydroxyl group associated with its aliphatic alcohol residue;
B) diesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said diester has at least one hydroxyl group associated with its aliphatic alcohol residue; and
C) mixtures of said monoesters and diesters; and
ii) about 90-40 wt-% of a diluent;
wherein the coating forms a stable liquid mixture at a temperature between about 35° C. and about 100° C., has a liquefaction temperature of at least about 30° C., and has a contact angle with a flat surface of the substrate of less than about 35° when measured at a temperature of 60° C.
2. The composition of claim 1 , wherein the coating forms a stable liquid mixture at a temperature between about 40° C. and about 75° C.
3. The composition of claim 1 , wherein the liquid mixture has a liquefaction temperature of at least about 35° C.
4. The composition of claim 1 , wherein the diluent comprises a hydrophilic agent and a lyophilic agent.
5. The composition of claim 4 , wherein the hydrophilic agent comprises an olefinic diol.
6. The composition of claim 1 , wherein the coating has a contact angle with a flat surface of the substrate of less than 29.1° when measured at a temperature of 60° C.
7. A coating composition comprising:
a) about 10-60 wt-% of a waxy compound selected from the group consisting of:
i) monoesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said monoester has at least one hydroxyl group associated with its aliphatic alcohol residue;
ii) diesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said diester has at least one hydroxyl group associated with its aliphatic alcohol residue; and
iii) mixtures of said monoesters and diesters; and
b) about 90-40 wt-% of a diluent;
wherein the diluent comprises a hydrophilic agent and a lyophilic agent and the coating forms a stable liquid mixture at a temperature between about 35° C. and about 100° C., has a liquefaction temperature of at least about 30° C., and has a contact angle with a flat surface of the substrate of less than about 35° when measured at a temperature of 60° C.
8. An intravaginal device comprising:
a) an insertable element;
b) substantially enclosed within a cover material comprising:
i) a flexible substrate;
ii) a coating disposed on the substrate, wherein the coating comprises a composition comprising:
A) about 10-60 wt-% of a waxy compound selected from the group consisting of:
1) monoesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said monoester has at least one hydroxyl group associated with its aliphatic alcohol residue;
2) diesters of a polyhydric aliphatic alcohol and a fatty acid containing from eight to eighteen carbon atoms and wherein said diester has at least one hydroxyl group associated with its aliphatic alcohol residue; and
3) mixtures of said monoesters and diesters; and
B) about 90-40 wt-% of a diluent;
wherein the coating forms a stable liquid mixture at a temperature between about 35° C. and about 100° C., has a liquefaction temperature of at least about 30° C., and has a contact angle with a flat surface of the substrate of less than about 35° when measured at a temperature of 60° C.
9. The intravaginal device of claim 8 , wherein the coating forms a stable liquid mixture at a temperature between about 40° C. and about 75° C.
10. The intravaginal device of claim 8 , wherein the liquid mixture has a liquefaction temperature of at least about 35° C.
11. The intravaginal device of claim 8 , wherein the diluent comprises a hydrophilic agent and a lyophilic agent.
12. The intravaginal device of claim 11 , wherein the hydrophilic agent comprises an olefinic diol.
13. The intravaginal device of claim 8 , wherein the flexible substrate comprises a film.
14. The intravaginal device of claim 13 , wherein the film comprises an apertured film.
15. The intravaginal device of claim 8 , wherein the flexible substrate comprises a nonwoven fabric.
16. The intravaginal device of claim 8 , wherein the coating has a contact angle with a flat surface of the substrate of less than 29.1° when measured at a temperature of 60° C.