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US3764537A Expired / Lapsed US ⏱️ 0.0 years remaining

Synthetic petrolatum compositions

Assignee: Individual
•
Filing: 1971-11-01
•
Granted: 1973-10-09
•
Expires: 1991-11-01
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Abstract

Abstract Petrolatum-like products are prepared by combining a distillate lubricating oil, a slack wax derived from a distillate lubricating oil and a wax crystal modifying additive having an intrinsic viscosity in the range of about 0.05 to about 0.3 dl/g and selected from the group consisting of amorphous polyethylene, amorphous polypropylene, copolymers thereof, halogenated homopolymers and copolymers thereof, and copolymers of 3 to 40 molar proportions of ethylene per molar proportion of an ethylenically unsaturated monomer having the general formula: WHEREIN X is selected from the group consisting of hydrogen, halogens and C1 to C5 alkyl groups; Y is selected from the group consisting of -OOCR, -OOCR and -COR groups; Z is selected from the group consisting of -COOR and -R; and R is selected from the group consisting of hydrogen and C1 to C10 alkyl groups.

Inventors

  • 👤 D Macleod

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:14
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/041; C08; C08L; C08L91/00; C08L91/06; C08L91/08; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/024; C10M2205/14; C10M2205/16; C10M2205/17; C10M2205/18; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/086; C10M2209/10; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/04; C10M2213/06; C10M2213/062; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 88 words
The composition of claim 1, wherein said lubricating oil has a boiling range of about 650*F. to about 1150*F. A.E.T. and a viscosity at 210*F. in the range of about 40 to about 180 SUS and said wax is a slack wax having a melting point in the range of about 100*F. to about 170*F. and a viscosity at 210*F. in the range of about 35 SUS to about 80 SUS. derived from a distillate lubricating oil having a boiling range of about 650*F. to about 1150*F. A.E.T.
Claim 2
Dependent Claim 41 words
The composition of claim 1, wherein component (a) represents about 50 to about 70 wt. %, component (b) represents about 20 to about 40 wt. %, and component (c) represents about 3 to about 10 wt. % of the total composition.
Claim 3
Dependent Claim 26 words
The composition of claim 1, wherein said crystal modifying additive is characterized by an intrinsic viscosity in the range of about 0.1 to about 0.29 Dl/g.
Claim 4
Dependent Claim 29 words
The composition of claim 1, wherein said crystal modifying additive is a copolymer containing 3 to 20 molar proportions of ethylene per molar proportion of said ethylenically unsaturated ester.
Claim 5
Dependent Claim 13 words
The composition of claim 5, wherein said ester is a vinyl alcohol ester.
Claim 6
Dependent Claim 19 words
The composition of claim 6, wherein said ester is a vinyl alcohol ester of C2 to C5 monocarboxylic acid.
Claim 7
Dependent Claim 11 words
The composition of claim 7, wherein said ester is vinyl acetate.

References Cited (Backward Citations)

US2133412A Cited
US2628187A Cited
US2775561A Cited
GB976716A Cited
GB1014075A Cited
US3215599A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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