Hydrogel compositions with an erodible backing member
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-006/14
A61F-013/00
A61F-013/02
A61L-015/16
A61K-009/70
A61K-009/14
출원번호
US-0482965
(2012-05-29)
등록번호
US-8481071
(2013-07-09)
발명자
/ 주소
Singh, Parminder
Faasse, Adrian
Cleary, Gary W.
Mudumba, Sri
Feldstein, Mikhail M.
Bairamov, Danir F.
출원인 / 주소
Corium International, Inc.
대리인 / 주소
Mohr, Judy
인용정보
피인용 횟수 :
13인용 특허 :
245
초록▼
A composition is provided, wherein the composition comprises a water-swellable, water-insoluble polymer, a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer. The composition also includes a backing member. Active ingr
A composition is provided, wherein the composition comprises a water-swellable, water-insoluble polymer, a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer. The composition also includes a backing member. Active ingredients, such as a whitening agent, may be included. The composition finds utility as an oral dressing, for example, a tooth whitening composition that is applied to the teeth in need of whitening. The composition can be designed to be removed when the degree of whitening has been achieved or left in place and allowed to erode entirely. In certain embodiments, the composition is translucent. Methods for preparing and using the compositions are also disclosed.
대표청구항▼
1. A composition, comprising: (a) a hydrogel comprising: (i) a water-swellable, water-insoluble acrylate polymer;(ii) a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer; and(iii) an active agent; and(b) a backing mem
1. A composition, comprising: (a) a hydrogel comprising: (i) a water-swellable, water-insoluble acrylate polymer;(ii) a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer; and(iii) an active agent; and(b) a backing member comprising a cellulose polymer, wherein the backing member erodes in a moist environment at a slower rate than the hydrogel. 2. The composition of claim 1, wherein the acrylate polymer is selected from polymers and copolymers of acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, or ethyl methacrylate. 3. The composition of claim 1, wherein the acrylate polymer is a methacrylic acid-methyl methacrylate copolymer. 4. The composition of claim 1, wherein the acrylate polymer is a methacrylic acid-ethyl acrylate copolymer. 5. The composition of claim 2, comprising between about 1-20 wt % of acrylate polymer. 6. The composition of claim 3, comprising between about 1-20 wt % of acrylate polymer. 7. The composition of claim 4, comprising between about 1-20 wt % of acrylate polymer. 8. The composition of claim 1, wherein the hydrophilic polymer is a poly(N-vinyl-lactams). 9. The composition of claim 8, which comprises about 20-80 wt % of a hydrophilic polymer. 10. The composition of claim 1, wherein the complementary oligomer is a polyalkylene glycols. 11. The composition of claim 10, which comprises about 10-50 wt % of a complementary oligomer. 12. The composition of claim 1, the cellulose polymer is selected from methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, and mixtures thereof. 13. The composition of claim 1, wherein the cellulose polymer is a cellulose ester. 14. The composition of claim 1, wherein the hydrogel erodes about 1 second to 24 hours after placement in a moist environment. 15. The composition of claim 1, wherein the hydrogel erodes about 10 seconds to 8 hours after placement in a moist environment. 16. The composition of claim 1, wherein the backing member erodes at least about 25% slower than the hydrogel. 17. The composition of claim 1, wherein the backing member erodes at least about 50% slower than the hydrogel. 18. The composition of claim 1, wherein the hydrogel is a solid and is attached to the backing member prior to use. 19. The composition of claim 1, wherein the active agent is a whitening agent selected from the group consisting of peroxides, metal chlorites, perborates, percarbonates, peroxyacids, and combinations thereof. 20. The composition of claim 1, wherein the active agent is selected from the group consisting of hydrogen peroxide, calcium peroxide, magnesium peroxide, carbamide peroxide, and mixtures thereof. 21. A method for whitening teeth, comprising: applying to teeth a composition comprising: (a) a hydrogel comprising: (i) a water-swellable, water-insoluble acrylate polymer;(ii) a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer; and(iii) an active agent; and(b) a backing member comprising a cellulose polymer, wherein the backing member erodes in a moist environment at a slower rate than the hydrogel. 22. The method of claim 21, wherein the hydrogel is a solid and is attached to the backing member, and wherein the applying step comprises applying the composition in a single step. 23. The method of claim 21 wherein the composition includes a release liner, and the release liner is removed prior to application of the composition to the teeth.
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이 특허에 인용된 특허 (245)
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