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US3853827A Expired / Lapsed US ⏱️ 0.0 years remaining

Self curing acrylate type composition for cementing metal parts

Assignee: Spolek Pro Chemickou A Hutni Vyrobu Narodni Podnik Unite
•
Filing: 1972-01-25
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Granted: 1974-12-10
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Expires: 1992-01-25
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Abstract

Abstract A composition for cementing together metal parts which cures in the absence of air but the curing of which is inhibited by the presence of air comprises a mixture of A. 34.0 to 99.4 percent by weight of at least one acrylic acidor methacrylic acid ester formed with an alcohol of the formula R - C * (CH2OH)3 wherein R is alkyl with 1-4 carbon atoms in the main chain, -CH2OH or -CH2O-CO-CnH2n 1 and wherein n 1 - 18; B. 0 - 65.4 percent by weight of A. AT LEAST ONE ACRYLIC ACID OR METHACRYLIC ACID ESTER FORMED WITH AN ALIPHATIC ALCOHOL OF 4 - 10 CARBON ATOMS IN THE MOLECULE, OR B. AT LEAST ONE ACRYLIC ACID OR METHACRYLIC ACID ESTER FORMED WITH A GLYCOL OR A POLYGLYCOL; C. AN UNSATURATED POLYESTER; OR D. A COMBINATION OF TWO OR MORE OF THE COMPOUNDS AT (A) (B) AND (C); C. 0.5 - 10 percent by weight of at least one organic hydroperoxide and D. 0.1 - 5 percent by weight of a tertiary amine or an alkylated amide of formic acid or acetic acid. The composition is adapted for cementing together particularly metal parts by self-curing upon exclusion of air while it is inhibited from curing as long as air or oxygen have access thereto.

Inventors

  • 👤 K Klatil
  • 👤 T Vogel
  • 👤 M Moc
  • 👤 P Jarolimek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:23
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08K; C08K5/00; C08K5/04; C08K5/14; C08K5/16; C08K5/17; C08K5/20; C08L; C08L33/00; C08L33/04; C09; C09J; C09J4/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 57 words
A COMPOSITION FOR CEMENTING TOGETHER METAL PARTS WHICH CURES IN THE ABSENCE OF AIR BUT THE CURING OF WHICH IS INHIBITED BY THE PRESENCE OF AIR, THE SAID COMPOSITION COMPRISING A MIXTURE OF (A) BETWEEN 34.0 AND 99.4 PERCENT BY WEIGHT OF AT LEAST ONE ACRYLIC ACID OR METACRYLIC ACID ESTER OF AN ALCOHOL HAVING THE FORMULA
Claim 2
Dependent Claim 57 words
A COMPOSITION FOR CEMENTING TOGETHER METAL PARTS WHICH CURES IN THE ABSENCE OF AIR BUT THE CURING OF WHICH IS INHIBITED BY THE PRESENCE OF AIR, THE SAID COMPOSITION COMPRISING A MIXTURE OF (A) BETWEEN 34.0 AND 99.4 PERCENT BY WEIGHT OF AT LEAST ONE ACRYLIC ACID OR METACRYLIC ACID ESTER OF AN ALCOHOL HAVING THE FORMULA
Claim 3
Dependent Claim 30 words
The composition of claim 1 wherein the organic hydroperoxide is a member selected from the group consisting of cumene hydroperoxide, di-isopropylbenzo hydroperoxide, pinane hydroperoxide, p-menthane hydroperoxide, cyclohexenylhydroperoxide, and methylcyclohexenyl hydroperoxide.
Claim 4
Dependent Claim 26 words
The composition of claim 1 wherein the tertiary amine is a member selected from the group consisting of dimethylaniline, triethylamine, triethanolamine, trimethylamine, tributylamine, diethylaniline and triisopropanolamine.
Claim 5
Dependent Claim 13 words
The composition of claim 1 wherein the alkylated amide is dimethylformamide or dimethylacetamide.
Claim 6
Dependent Claim 23 words
The composition of claim 1 wherein the acrylic acid or methacrylic acid ester formed with an aliphatic alcohol is octylmethacrylate, butylmethacrylate or 2-ethylhexylacrylate.
Claim 7
Dependent Claim 21 words
A composition as defined in claim 1 in which the mixture comprises (a) trimethylolethane trimethacrylate, (c) cumene hydroperoxide, and (d) triethylamine.
Claim 8
Dependent Claim 21 words
A composition as defined in claim 1 in which the mixture comprises (a) trimethylolpropane trimethacrylate, (c) diisopropylbenzene hydroperoxide, and (d) N,N-dimethylformamide.
Claim 9
Dependent Claim 24 words
A composition as defined in claim 1 in which the mixture comprises (a) pentaerythritol tetraacrylate, (b) octyl methacrylate, (c) cyclohexene hydroperoxide, and (d) N,N-dimethylaniline.
Claim 10
Dependent Claim 29 words
A composition as defined in claim 1 in which the acrylic or methacrylic acid ester (b) is glycol dimethacrylate, dipropylene glycol acrylate, polyethylene glycol dimethacrylate or polypropylene glycol dimethacrylate.
Claim 11
Dependent Claim 42 words
A composition as defined in claim 1 in which the mixture comprises (a) 50 parts of pentaerythritol tetraacrylate, (b) 50 parts of octyl methacrylate, (c) 4 parts of cyclohexene hydroperoxide, and (d) 3.5 parts of dimethylaniline, all parts being parts by weight.

References Cited (Backward Citations)

US3041322A Cited
US3454543A Cited
US3551311A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-09 1978-06-10 1978-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-09 1982-06-10 1982-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-09 1986-06-10 1986-12-10 $7700.00 Window Closed / Lapsed

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