US4771112A
Expired / Lapsed
US
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Compounds that consist of aldehyde, epoxide, isocyanate, or halotriazine groups, of polymerizable groups, and of a higher-molecular backbone, mixtures that contain them, and the use thereof
Assignee: Ernst Muehlbauer KG
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Filing: 1987-10-07
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Granted: 1988-09-13
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Expires: 2007-10-07
Abstract
Abstract Oligomeric and prepolymeric organic compounds with aldehyde, epoxide, isocyanate, or halotriazine groups and polymerizable groups. Compounds of this type and mixtures thereof have outstanding adhesion properties, especially in relation to biological substrates, can be copolymerized with composites based on unsaturated monomers, and are especially appropriate in dentistry and medicine as adhesion promoters, adhesive fillers, or adhesive cement.
Inventors
- 👤 Jurgen Engelbrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
A; A61; A61L; A61L24/00; A61L24/04; A61L24/06; C; C08; C08F; C08F291/00; C09; C09J; C09J4/00; C09J4/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
29 words
An oligomeric or prepolymeric organic compound that contains (a) several polymerizable unsaturated groups and (b) several aldehyde, epoxide, isocyanate or halotriazine groups, on (c) an oligomeric or prepolymeric backbone.
Claim 2
Dependent Claim
29 words
An oligomeric or prepolymeric organic compound that contains (a) several polymerizable unsaturated groups and (b) several aldehyde, epoxide, isocyanate or halotriazine groups, on (c) an oligomeric or prepolymeric backbone.
Claim 3
Dependent Claim
23 words
A compound according to claim 1, containing at least three polymerizable unsaturated groups and at least three aldehyde, epoxide, isocyanate or halotriazine groups.
Claim 4
Dependent Claim
84 words
A compound according to claim 1, wherein the polymerizable unsaturated groups comprise at least one of acrylic, methacrylic, vinyl and styryl groups; the aldehyde group if present is in the form of an acetal or semiacetal; the epoxide group if present is in the form of an epimine; the halotriazine group if present is a 4,6-dichlor-1,3,5-triazine group; and the oligomeric or prepolymeric backbone (c) is a homo- or co-polymer of an ethylenically unsaturated monomer or is a polyester, polyamide, polyether, polysulfone, polyphosphazene, or polysaccharide.
Claim 5
Dependent Claim
16 words
A compound according to claim 1, wherein it has a molecular weight of 500 to 100,000.
Claim 6
Dependent Claim
16 words
A compound according to claim 1, wherein it has a molecular weight of 1,500 to 20,000.
Claim 7
Dependent Claim
11 words
A compound according to claim 1, wherein it is poly(meth-)acrylated polyvinylformal.
Claim 8
Dependent Claim
11 words
A compound according to claim 1, wherein it is poly(meth-)acrylated polystyrylurethanglycidylepoxide.
Claim 9
Dependent Claim
11 words
A compound according to claim 1, wherein it is poly(meth-)acrylated polystyrylisocyanate.
Claim 10
Dependent Claim
11 words
A compound according to claim 1, wherein it is poly(meth-)acrylated polyallylaminodichlortriazine.
Claim 11
Dependent Claim
12 words
A polymerizable mixture containing at least one compound according to claim 1.
Claim 12
Dependent Claim
30 words
A polymerizable mixture comprising at least one compound according to claim 1 and one or more polymerizable unsaturated compounds or a compound with an aldehyde, epoxide, isocyanate, or halotriazine group.
Claim 13
Dependent Claim
34 words
A polymerizable mixture according to claim 11, further containing at least one polyol, polyamine, polyamide or protein which is able to crosslink ingredients of the mixture which contain aldehyde-, epoxide-, isocyanate- or halotriazine groups.
Claim 14
Dependent Claim
30 words
A polymerizable mixture according to claim 11, further containing at least one of a solvent, a polymerization-, polyaddition- or polycondensation catalyst, and a surface-treated or untreated inorganic or organic filler.
Claim 15
Dependent Claim
34 words
A method for repairing, filling, veneering or lining an oxidic, mineral, vitreous, ceramic, metallic, or biological substrate, comprising applying to said substrate a mixture according to claim 11, and causing that mixture to harden.
Claim 16
Dependent Claim
60 words
A method for adhering (a) an oxidic, mineral, vitreous, ceramic, metallic, or biological substrate to (b) an oxidic, mineral, vitreous, ceramic, metallic, biological,or acrylic substrate, comprising the steps of (c) applying to said substrate (a) a mixture according to claim 11; (d) bringing the substrate (b) into good contact with said substrate (a) and (e) causing that composition to harden.
Claim 17
Dependent Claim
47 words
A method according to claim 15, wherein said substrate is hard dental tissue or bone, or is an acrylic substrate made by polymerization of monomers with unsaturated groups or by polyaddition or polycondensation of compounds with aldehyde, isocyanate, epoxide or halotriazine with polyols, polyamine, polyamide or proteins.
Claim 18
Dependent Claim
54 words
A method comprising coating inorganic or organic filler particles, pigments or fibers with a thin film of uncured mixtures according to claim 11, and then compounding said filler particles, pigments or fibers with a polymerizable binder resin to create a better bond between said filler particles, pigments or fibers to said polymerizable binder resin.
Claim 19
Dependent Claim
38 words
A method comprising coating filler particles, pigments or fibers comprising applying thereto a thin film of a polymerizable mixture according to claim 11 and curing said mixture, thereby altering the surface of said filler particles, pigments or fibers.
Claim 20
Dependent Claim
21 words
A method for producing a shaped object comprising molding a mixture according to claim 10, and causing said mixture to harden.
References Cited (Backward Citations)
US4203220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |