Patent US4323348A successfully refreshed from Google Patents.
US4323348A
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Dental compositions
Assignee: Bayer AG
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Filing: 1980-07-31
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Granted: 1982-04-06
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Expires: 2000-07-31
Abstract
Abstract The invention relates to the provision of dental compositions containing a polymerizable (meth)acrylic acid ester of the formula Id as defined herein and includes methods for filling or repairing teeth in warm-blooded animals.
Inventors
- 👤 Robert Schmitz-Josten
- 👤 Manfred Borgardt
- 👤 Hans-Hermann Schulz
- 👤 Michael Walkowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:23
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; Y; Y10; Y10S; Y10S528/00; Y10S528/92
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
A dental composition comprising a polymerisable (meth)acrylic acid ester of the formula ##STR8## in which R represents ##STR9## R 1 represents a hydrogen atom or a methyl or ethyl group, and n+m represents a number from 1 to 10; and one or more inert dentally acceptable carriers.
Claim 2
Dependent Claim
47 words
A dental composition comprising a polymerisable (meth)acrylic acid ester of the formula ##STR8## in which R represents ##STR9## R 1 represents a hydrogen atom or a methyl or ethyl group, and n+m represents a number from 1 to 10; and one or more inert dentally acceptable carriers.
Claim 3
Dependent Claim
18 words
A dental composition according to claim 1 wherein said inert dentally acceptable carriers include fillers, stabilisers or pigments.
Claim 4
Dependent Claim
14 words
A dental composition according to claim 1 or 2 in which R represents ##STR10##
Claim 5
Dependent Claim
15 words
A dental composition according to claim 3 in which R 1 represents a hydrogen atom.
Claim 6
Dependent Claim
15 words
A dental composition according to claim 3 in which R 1 represents a methyl group.
Claim 7
Dependent Claim
18 words
A dental composition according to claim 1 wherein R 1 represents hydrogen and n+m represents the integer 2.
Claim 8
Dependent Claim
18 words
A dental composition according to claim 1 wherein R 1 represents hydrogen and n+m represents the integer 4.
Claim 9
Dependent Claim
18 words
A dental composition according to claim 1 wherein R 1 represents hydrogen and n+m represents the integer 8.
Claim 10
Dependent Claim
20 words
A dental composition according to claim 1 wherein R 1 represents a methyl group and n+m represents the integer 2.
Claim 11
Dependent Claim
20 words
A dental composition according to claim 1 wherein R 1 represents a methyl compound and n+m represents the integer 4.
Claim 12
Dependent Claim
25 words
A dental composition according to claim 1 or 2 in which the polymerisable (meth)acrylic acid ester of formula (Id) is mixed with another polyfunctional monomer.
Claim 13
Dependent Claim
19 words
A dental composition according to claim 11 in which the other polyfunctional monomer is a polymerisable di-(meth)acrylic acid ester.
Claim 14
Dependent Claim
27 words
A method of filling or repairing teeth in warm-blooded animals in which the filling material or repair material is a dental composition as claimed in claim 1.
Claim 15
Dependent Claim
20 words
A method according to claim 13 in which the polymerisable (meth)acrylic acid ester is one in which R represents ##STR11##
Claim 16
Dependent Claim
23 words
A method according to claim 14 in which the polymerisable (meth)acrylic acid ester is one in which R 1 represents a hydrogen atom.
Claim 17
Dependent Claim
23 words
A method according to claim 14 in which the polymerisable (meth)acrylic acid ester is one in which R 1 represents a methyl group.
Claim 18
Dependent Claim
20 words
A denture or other orthodontic device when formed wholely or partially of a dental composition as claimed in claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-05 | 1985-10-05 | 1986-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-05 | 1989-10-05 | 1990-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-05 | 1993-10-05 | 1994-04-06 | $7700.00 | Window Closed / Lapsed |