UST882017I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST882017I4 UST882017I4 US882017DH UST882017I4 US T882017 I4 UST882017 I4 US T882017I4 US 882017D H US882017D H US 882017DH US T882017 I4 UST882017 I4 US T882017I4
- Authority
- US
- United States
- Prior art keywords
- polyolefin
- solvent
- solution
- substrate
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000098 polyolefin Polymers 0.000 abstract description 17
- 239000002904 solvent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 9
- 239000000758 substrate Substances 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 6
- -1 POLYETHYLENE Polymers 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 238000013019 agitation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
Definitions
- the process of forming a polyolefin deposit or coating on a substrate which comprises: (A) forming a solution of a polyolefin in a solvent therefor (such as polyethylene or polypropylene) heated to a temperature suflieient to bring about solution of the polyolefin therein, progressively cooling the solution to the quasi-solidification point and simultaneously adding to the solution a volatile liquid which is a non-solvent for the polyolefin, and, during addition of the non-solvent, subjecting the mixture to constant agitation and a high degree of shear, whereby minute discreet olyolefin particles are formed as a dispersion in the mixture of solvent and non-solvent; (B) heating the substrate to be coated to a temperature at or above the fusion temperature of the polyolefin; and (C) spraying the polyolefin dispersion onto the heated substrate, whereby the volatile components of the dispersion are evaporated and the discreet particles of polyolefin are deposited on a solvent
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
THE PROCESS OF FORMING A POLYOLEFIN DEPOSIT OR COATING ON A SUBSTRATE WHICH COMPRISES: (A) FORMING A SOLUTION OF A POLYOLEFIN IN A SOLVENT THEREFOR (SUCH AS POLYETHYLENE OR POLYPROPYLENE) HEATED TO A TEMPERATURE SUFFICIENT TO BRING ABOUT SOLUTION OF THE POLYOLEFIN THEREIN, PROGRESSIVELY COOLING THE SOLUTION OF THE POLYOLEFIN THEREIN, PROGRESAND SIMULTANEOUSLY ADDING TO THE SOLUTION A VOLATILE LIQUID WHICH IS A NON-SOLVENT FOR THE POLYOLEFIN, AND, DURING ADDITION OF THE NON-SOLVENT, SUBJECTING THE MIXTURE TO CONSTANT AGITATION AND A HIGH DEGREE OF SHEAR, WHEREBY MINUTE DISCRETE POLYOLEFIN PARTICLES ARE FORMED AS A DISPERSION IN THE MIXTURE OF SOLVENT AND NON-SOLVENT; (B) HEATING THE SUBSTRATE TO BE COATED TO A TEMPERATURE AT OR ABOVE THE FUSION TEMPERATURE OF THE POLYOLEFIN; AND (C) SPRAYINGTHE POLYOLEFIN DISPERSION ONTO THE HEATED SUBSTRATE, WHEREBY THE VOLATILE COMPONENTS OF THE DISPERSION ARE EVAPORATED AND THE DISCREET PARTICLES OF POLYOLEFIN ARE DEPOSITED ON AND FUSED INTO A CONTINUOUS COATING ON THE SUBSTRATE. THE PROCESS IS PARTICULARLY USEFUL IN PREPARING PROTECTIVE AND EASILY SLIPABLE COATING ON THE SURFACE OF A WIDE VARIETY OF METAL OBJECTS SUCH AS STEEL PANELLING, CONSTRUCTION MEMBERS AND OTHER OBJECTS WHERE A PROTECTIVE AND LOW-FRICTION COATING IS REQUIRED.
Description
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice make: no assertion as to the novelty of the disclosed subject matter.
PUBLISHED JANUARY 26, 1971 T882 017 COATING SUBSTRATES WITH POLYOLEFINS Charles H. Coney, 2008 Canterbury Road, Kingsport, Tenn. 37660 Filed May 13, 1970, Ser. No. 36,996 Int. Cl. B44d 1/34 U.S. Cl. 117-49 No Drawing. 10 Pages Specification The process of forming a polyolefin deposit or coating on a substrate which comprises: (A) forming a solution of a polyolefin in a solvent therefor (such as polyethylene or polypropylene) heated to a temperature suflieient to bring about solution of the polyolefin therein, progressively cooling the solution to the quasi-solidification point and simultaneously adding to the solution a volatile liquid which is a non-solvent for the polyolefin, and, during addition of the non-solvent, subjecting the mixture to constant agitation and a high degree of shear, whereby minute discreet olyolefin particles are formed as a dispersion in the mixture of solvent and non-solvent; (B) heating the substrate to be coated to a temperature at or above the fusion temperature of the polyolefin; and (C) spraying the polyolefin dispersion onto the heated substrate, whereby the volatile components of the dispersion are evaporated and the discreet particles of polyolefin are deposited on and fused into a continuous coating on the substrate. The process is particularly useful in preparing protective and easily slipable coatings on the surface of a wide variety of metal objects such as steel panelling, construction members and other objects where a protective and low-friction coating is required.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3699670A | 1970-05-13 | 1970-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST882017I4 true UST882017I4 (en) | 1971-01-26 |
Family
ID=21891875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US882017D Pending UST882017I4 (en) | 1970-05-13 | 1970-05-13 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST882017I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368543A3 (en) * | 1988-11-07 | 1991-08-28 | Minnesota Mining And Manufacturing Company | Processing for coating electrical bus bars and the like |
-
1970
- 1970-05-13 US US882017D patent/UST882017I4/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368543A3 (en) * | 1988-11-07 | 1991-08-28 | Minnesota Mining And Manufacturing Company | Processing for coating electrical bus bars and the like |
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