Guy E Carrow

40565947, Nov 1, 1977

Dec 15, 1975

5/640984

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

C08G 7514

264176R

An improved method for the production of an extrudate of poly(phenylene sulfide) and filler with the resulting extrudate having a stiffness of less than 10,000 psi as determined by ASTM D747-70. The extrudate formed is very flexible. The method includes the step of applying pressure to a heated mixture of poly(phenylene sulfide) and filler and flowing the mixture through a first orifice into an expansion chamber and out of the expansion chamber through a second orifice. The extrudate exiting the second orifice is extruded into the atmosphere or into a mold cavity for the molding of a piece part. The resulting extrudate is flexible and can be used as a packing or gasket material.

46906320, Sep 1, 1987

Jun 10, 1985

6/743131

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B29C 3926
B29C 4106

425429

A method of rotationally molding hollow articles from cross-linkable polymeric material wherein the mold and molding material are simultaneously revolved about two nonparallel axes while being heated to fuse and cross-link polymeric material. When the polymeric material is partially cross-linked the mold containing the hollow article is opened at at least one location to admit heated air circulated therethrough to facilitate cross-linking of the inner portion of the molded tubular article and produce a smooth inner surface therein. Also disclosed is apparatus for performing the molding method of the invention.

41292820, Dec 12, 1978

Nov 8, 1977

5/849682

John N. Scott - Bartlesville OK
Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B29C 500

249137

A mold apparatus for forming a molded article comprising a hollow body of a crosslinked polymer rotationally molded around a section of at least one piece of non-crosslinked conduit, which conduits protrude from said hollow body, made by attaching said conduits of non-crosslinked material at the desired location to the mold with said section being located inside a heated section of the mold so that the crosslinkable polymer during a rotational molding process is fused and crosslinked inside of the mold and around and in tight welding-type connection with said section, whereas the remainder of the piece or pieces of uncrosslinked polymer are heat-insulated, thus avoiding deformation or collapsing of these pieces.

39845168, Oct 5, 1976

Nov 11, 1974

5/522594

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B29C 1703

264230

A process for reforming a crosslinked thermoplastic article is described which comprises forming a crosslinkable polymer containing a crosslinking agent into a first shaped article, and thereafter reforming the first shaped article into a second shaped article. An improved material handling process is also described which comprises the optional employment of the first or second or any subsequently shaped article in the form of a container. The containers can be reformed into various shapes by suitably regulating the reforming temperature conditions.

40700445, Jan 24, 1978

Jan 22, 1976

5/651311

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

F16L 4100
F16L 4702

285156

A pipe connection is provided which comprises two pipe ends, one inserted inside of the other, and one consisting essentially of crosslinked polymer material, whereas the other consists essentially of crosslinked or non-crosslinked polymer material, the connection having a layer of polymer material press-fitted and crosslinked between the two pipe ends. The pipe fitting is made by arranging the two pipe ends so that one is inserted in the other, one of the ends having a mechanical memory and having been deformed so that one of the pipe ends fits into the other, providing an in situ heat-crosslinkable polymer layer between the two pipe ends and heating the thus assembled pipe ends to crosslink the heat-crosslinkable layer, while the deformed pipe end returns towards its original shape, thus press-fitting the crosslinking polymer layer between the two pipe ends and making a strong, fluid-tight joint.

46666508, May 19, 1987

Aug 9, 1983

6/521761

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B29C 4106

264310

A method of rotationally molding hollow articles from cross-linkable polymeric material wherein the mold and molding material are simultaneously revolved about two nonparallel axes while being heated to fuse and cross-link polymeric material. When the polymeric material is partially cross-linked the mold containing the hollow article is opened at at least one location to admit heated air circulated therethrough to facilitate cross-linking of the inner portion of the molded tubular article and produce a smooth inner surface therein. Also disclosed is apparatus for performing the molding method of the invention.

41067452, Aug 15, 1978

Apr 1, 1975

5/564090

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B22D 1900

249 97

An insert that is to be embedded in a molded object is attached inside the mold in a resilient manner so that stresses caused in the area of the molded article surrounding the insert due to shifting of the molded article during cooling can be minimized.

45040869, Mar 12, 1985

Jan 10, 1983

6/456892

Guy E. Carrow - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

F16L 4100
F16L 4700

285156

A pipe tee comprises a substrate having deposited thereon a reinforcing wrapping of a resin-impregnated filament.