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US4048370A Expired / Lapsed US ⏱️ 0.0 years remaining

Shaped bearing member

Assignee: Kamatics Corp
•
Filing: 1975-08-04
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Granted: 1977-09-13
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Expires: 1995-08-04
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Abstract

Abstract A bearing assembly comprises two engaging members movable relative to one another. One of said members has a bearing surface made of metal or ceramic coated with a thin film of a parting agent, and the other bearing surface is a cured mixture of a curable acrylate composition and particulate polytetrafluoroethylene.

Inventors

  • 👤 Stanley S. Orkin
  • 👤 Edward John Nagy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 16:03
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C; C08; C08F; C08F263/00; C08F263/06; F16C11/00; F16C11/04; F16C11/06; F16C11/0614; F16C33/043; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/909; Y10S425/00; Y10S425/812; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/269; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31855

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 146 words
A shaped bearing member comprising a substrate provided with a coating of a cured mixture of an acrylate composition and a particulate solid lubricant, said coating having a thickness ranging from 0.002 to 0.125 inch, and said acrylate composition is selected from the group consisting of: a. a mixture of a major amount of a liquid acrylic ester selected from the group consisting of di-, tri-, and tetraesters of an acrylic acid and a polyhydric alcohol, a minor amount of a low molecular weight prepolymer of an ester of a low molecular weight alcohol having a terminal vinyl group and an aromatic polycarboxylic acid in solution in said acrylic ester and an organic amide of the formula ##STR10## wherein R is selected from the group consisting of hydrogen and aliphatic hydrocarbon of 1-20 carbon atoms in an amount sufficient to copolymerize said acrylic ester and prepolymer,
Claim 2
Dependent Claim 146 words
A shaped bearing member comprising a substrate provided with a coating of a cured mixture of an acrylate composition and a particulate solid lubricant, said coating having a thickness ranging from 0.002 to 0.125 inch, and said acrylate composition is selected from the group consisting of: a. a mixture of a major amount of a liquid acrylic ester selected from the group consisting of di-, tri-, and tetraesters of an acrylic acid and a polyhydric alcohol, a minor amount of a low molecular weight prepolymer of an ester of a low molecular weight alcohol having a terminal vinyl group and an aromatic polycarboxylic acid in solution in said acrylic ester and an organic amide of the formula ##STR10## wherein R is selected from the group consisting of hydrogen and aliphatic hydrocarbon of 1-20 carbon atoms in an amount sufficient to copolymerize said acrylic ester and prepolymer,
Claim 3
Dependent Claim 90 words
b. a mixture of acrylic ester monomer, a peroxidic initiator in an amount sufficient to initiate polymerization of said monomer and an aminoalkoxyalkylamine of the formula R 1 -N(H)R 2 [OR 3] x N(H)R 4 wherein x is an integer of 1-6 inclusive, each of R 1 and R 4 is selected from the group consisting of hydrogen and lower alkyl and each of R 2 and R 3 is a lower alkyl linking bridge between N and O, in an amount sufficient to accelerate the polymerization of said monomer,
Claim 4
Dependent Claim 90 words
b. a mixture of acrylic ester monomer, a peroxidic initiator in an amount sufficient to initiate polymerization of said monomer and an aminoalkoxyalkylamine of the formula R 1 -N(H)R 2 [OR 3] x N(H)R 4 wherein x is an integer of 1-6 inclusive, each of R 1 and R 4 is selected from the group consisting of hydrogen and lower alkyl and each of R 2 and R 3 is a lower alkyl linking bridge between N and O, in an amount sufficient to accelerate the polymerization of said monomer,
Claim 5
Dependent Claim 189 words
c. a mixture of an acrylic ester of an alkyl amino alkyl alcohol and an effective amount of a hydroperoxide catalyst, said acrylic ester having the formula ##STR11## wherein x is an integer of 0-5 inclusive, y is an integer of 1-6 inclusive, R is selected from the group consisting of hydrogen, halogen, hydroxy, cyano and lower alkyl and R 1 is selected from the group consisting of hydrogen and alkyl having 1-6 carbon atoms, d. a mixture of a liquid acrylic ester monomer selected from the group consisting of diesters of an acrylic acid and a polyhydric alcohol, acrylic esters of cyclic ether alcohols, acrylic esters of amino alcohols and mixtures thereof, a peroxidic initiator and an oxyalkylamine of the formula (H) m N[(CH 2 ) x (OR 1 ) y OR 2 ] n wherein m and n are each integers of 1 to 2 inclusive, the total of m and n is 3, x is an integer of 1 to 6 inclusive, y is an integer of 0 to 6 inclusive, R 1 is lower alkyl and R 2 is selected from hydrogen and lower alkyl,
Claim 6
Dependent Claim 189 words
c. a mixture of an acrylic ester of an alkyl amino alkyl alcohol and an effective amount of a hydroperoxide catalyst, said acrylic ester having the formula ##STR11## wherein x is an integer of 0-5 inclusive, y is an integer of 1-6 inclusive, R is selected from the group consisting of hydrogen, halogen, hydroxy, cyano and lower alkyl and R 1 is selected from the group consisting of hydrogen and alkyl having 1-6 carbon atoms, d. a mixture of a liquid acrylic ester monomer selected from the group consisting of diesters of an acrylic acid and a polyhydric alcohol, acrylic esters of cyclic ether alcohols, acrylic esters of amino alcohols and mixtures thereof, a peroxidic initiator and an oxyalkylamine of the formula (H) m N[(CH 2 ) x (OR 1 ) y OR 2 ] n wherein m and n are each integers of 1 to 2 inclusive, the total of m and n is 3, x is an integer of 1 to 6 inclusive, y is an integer of 0 to 6 inclusive, R 1 is lower alkyl and R 2 is selected from hydrogen and lower alkyl,
Claim 7
Dependent Claim 250 words
e. a mixture of an acrylic ester monomer selected from the group consisting of di-, tri- and tetraesters of an acrylic acid and a polyhydric alcohol, acrylic esters of cyclic ether alcohols, acrylic estersof amino alcohols and mixtures thereof, a peroxidic initiator of an amount sufficient to initiate polymerization of said monomer and a member selected from the group consisting of rhodanine and a hydrazide of the formula ##STR12## wherein R and R 1 are selected from separate groups and an interconnected group forming a cyclic ring, R is further selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl and alkoxy and R 1 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl and dithiocrbonyl in an amount sufficient to accelerate the polymerization of said monomer; and f. a mixture of a monomer of the formula ##STR13## wherein R 1 and R 2 are selected from the group consisting of hydrogen and lower alkyl and R 3 is selected from the group consisting of lower alkyl, lower hydroxyalkyl, cyano and lower cyanoalkyl; at least one equivalent of an acid for each equivalent of said monomer, said acid being selected from the group consisting of acrylic acid and lower alkyl acrylic acids; an initiator selected from the group consisting of t-butyl perbenzoate, t-butyl peracetate and di-t-butyl diperphthalate, said initiator being present in an amount sufficient to initiate the polymerization of said monomer; a trihydroxy benzene inhibitor and an accelerator selected from the group consisting of benzhydrazide and N-aminorhodanine.
Claim 8
Dependent Claim 250 words
e. a mixture of an acrylic ester monomer selected from the group consisting of di-, tri- and tetraesters of an acrylic acid and a polyhydric alcohol, acrylic esters of cyclic ether alcohols, acrylic estersof amino alcohols and mixtures thereof, a peroxidic initiator of an amount sufficient to initiate polymerization of said monomer and a member selected from the group consisting of rhodanine and a hydrazide of the formula ##STR12## wherein R and R 1 are selected from separate groups and an interconnected group forming a cyclic ring, R is further selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl and alkoxy and R 1 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, acyl and dithiocrbonyl in an amount sufficient to accelerate the polymerization of said monomer; and f. a mixture of a monomer of the formula ##STR13## wherein R 1 and R 2 are selected from the group consisting of hydrogen and lower alkyl and R 3 is selected from the group consisting of lower alkyl, lower hydroxyalkyl, cyano and lower cyanoalkyl; at least one equivalent of an acid for each equivalent of said monomer, said acid being selected from the group consisting of acrylic acid and lower alkyl acrylic acids; an initiator selected from the group consisting of t-butyl perbenzoate, t-butyl peracetate and di-t-butyl diperphthalate, said initiator being present in an amount sufficient to initiate the polymerization of said monomer; a trihydroxy benzene inhibitor and an accelerator selected from the group consisting of benzhydrazide and N-aminorhodanine.

References Cited (Backward Citations)

US3342667A Cited
US3496103A Cited
US3554913A Cited
US3806216A Cited
US3929396A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-12 1981-03-14 1981-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-12 1985-03-14 1985-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-12 1989-03-14 1989-09-13 $7700.00 Window Closed / Lapsed

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