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US4920188A Expired / Lapsed US ⏱️ 0.0 years remaining

Curable compositions

Assignee: Mitsui Chemicals Inc
•
Filing: 1988-07-01
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Granted: 1990-04-24
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Expires: 2008-07-01
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Abstract

Abstract A curable composition which contains mono- and poly-functional acrylate monomers and an acidic group-containing acrylate monomer containing at least one acryloyloxy group per molecule, monofunctional acrylamide monomer, trialkylboron and/or partially oxidized product thereof. This composition shows excellent low-temperature curability around ordinary temperature and water-resistant adhesiveness, and exhibits excellent adhesiveness to teeth or dental alloys with less detrimental influences such as stimulation, thus being suited as binding agents for various composite resins. <H0> SUMMARY </H0> A curable composition is provided, comprising a monofunctional (meth)acrylate monomer, a poly functional (meth)acrylate monomer, a (meth)acrylate monomer containing an acidic group and at least one (meth)acryloyloxyl group in its molecule, a monofunctional (meth)acrylamide monomer, and a trialkylboron and/or a partial oxide thereof. The composition has improved low-temperature curability at approximately room temperature and water-resistant adherence, and excellent adhesiveness to tooth substances including enamel and dentin and dental alloys, and gives no adverse influence of stimulation to dental pulp. Most preferably, the composition is used as a bonding agent for dental composite resins.

Inventors

  • 👤 Takeshi Sakashita
  • 👤 Narimichi Honda
  • 👤 Masami Arata

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:23
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887; C; C08; C08F; C08F222/00; C08F222/10; C08F222/1006; C08F222/102; C08F222/1025

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 59 words
A curable composition comprising, (A) a monofunctional (meth)acrylate monomer, (B) a polyfunctional (meth)acrylate monomer, (C) a (meth)acrylate monomer containing an acidic group and at least one (meth)acryloyloxyl group in its molecule, (D) a monofunctional (meth)acrylamide monomer of the general formula (I): ##STR40## wherein R is H or CH 3 , and (E) a trialkylboron and/or a partial oxide thereof.
Claim 2
Dependent Claim 59 words
A curable composition comprising, (A) a monofunctional (meth)acrylate monomer, (B) a polyfunctional (meth)acrylate monomer, (C) a (meth)acrylate monomer containing an acidic group and at least one (meth)acryloyloxyl group in its molecule, (D) a monofunctional (meth)acrylamide monomer of the general formula (I): ##STR40## wherein R is H or CH 3 , and (E) a trialkylboron and/or a partial oxide thereof.
Claim 3
Dependent Claim 94 words
The curable composition of claim 1 wherein (A) comprises 5 to 95% by weight and (B) comprises 95 to 5% by weight based on the total weight of (A) and (B), (C) comprises 1 to 50 parts by weight per 100 parts by weight of the total of (A) and (B), (D) comprises 0.1 to 50 parts by weight per 100 parts by weight of the total of (A) and (B), and (E) comprises 2 to 100 parts by weight per 100 parts by weight of the total of (A), (B), (C) and (D).

References Cited (Backward Citations)

US3894997A Cited
US3989882A Cited
US4121032A Cited
US4385153A Cited
US4639498A Cited
US4535070A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-04-23 1993-10-23 1994-04-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-04-23 1997-10-23 1998-04-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-04-23 2001-10-23 2002-04-24 $7700.00 Window Closed / Lapsed

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