31
Phillip A Waitkus, Bohumir Lepeska: Process for the preparation of phenol formaldehyde resole resins. Plastics Engineering Company, Walter J Monacelli, April 7, 1987: US04656239 (8 worldwide citation)

The process described herein involves the gradual addition of aqueous formaldehyde, containing 35-60 percent by weight of formaldehyde, to a phenol maintained at a temperature of 60.degree.-100.degree. C., preferably 70.degree.-90.degree. C., and at a reduced pressure of 11-26 inches of mercury in t ...


32
Jerome C Kellner: Phenolic resin-melamine composition. Plastics Engineering Company, Walter J Monacelli, September 19, 1978: US04115366 (8 worldwide citation)

The phenolic molding compound described herein is improved in arc resistance, arc track voltage and flame or fire retardance by the presence of 10.5-20, preferably 11-16 percent by weight, of melamine based on the total composition, The fillers and modifiers used in such resin compositions are those ...


33
Leonard F Sansone: Annular extrusion die. Sussex Plastics Engineering, Jacobs & Jacobs, February 28, 1978: US04076481 (8 worldwide citation)

An annular extrusion die having a rotating shear ring which provides a pumping and shearing action on the plastic as it passes through the die annulus, and a method of forming annular extrusions.


34
Chung J Lee: Fast crystallizing polyalkyleneterephthalate resin compositions. Plastics Engineering Company, Walter J Monacelli, September 20, 1983: US04405741 (8 worldwide citation)

The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of NaSCN in the form of a selected complex of sodium thiocyanate (NaSCN) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the for ...


35
Waitkus Phillip A: Aminotriazine-aldehyde resins and process for preparation. Plastics Engineering Company, Monacelli Walter J, October 1, 1974: US3839289 (8 worldwide citation)

A polyamino triazine, such as melamine or benzoguanamine, etc., is reacted with an aldehyde such as formaldehyde, and a vinyl compound containing two active hydrogens capable of reaction with an aldehyde or alkylol group in such a manner as not to react with or destroy the vinyl group. Typical vinyl ...


36
Leonard F Sansone: Method for extruding plastics. Sussex Plastics Engineering, Jacobs & Jacobs, April 24, 1979: US04151242 (7 worldwide citation)

An annular extrusion die having a rotating shear ring which provides a pumping and shearing action on the plastic as it passes through the die annulus, and a method of forming annular extrusions.


37
Louis L Korb, Phillip A Waitkus: Moldable composition suitable for the preparation of vitreous carbon. Plastics Engineering Company, Walter J Monacelli, November 25, 1986: US04624984 (7 worldwide citation)

The moldable composition disclosed herein comprises co-reacted mixtures of powder or otherwise blendable form of 20-80% by weight of a phenolic-furfuraldehyde Novolac resin and of 20-80% by weight of a phenolic-aldehyde resol resin in water, either in solution or suspension, the percentages being ba ...


38
Chung J Lee: Fast crystallizing polyalkyleneterephthalate resin compositions. Plastics Engineering Company, Walter J Monacelli, March 20, 1984: US04438233 (7 worldwide citation)

The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of lithium bromide, chloride or iodide in the form of a selected complex of the lithium halide (LiX) and an organic compound, such as a polymeric compound, which contains at least tw ...


39
Phillip A Waitkus: Thermosetting resin compositions. Plastics Engineering Company, Quarles & Brady, May 12, 1998: US05750597 (7 worldwide citation)

A thermosetting resin composition which can be used to produce pultruded products with a lustrous surface finish comprises about 60% to about 95% by weight of an uncured, liquid phenolic resin containing about 70-90% solids by weight and about 5 to about 40% of particles of a molding composition com ...


40
Gaetano F D Alelio, Phillip A Waitkus: Polyimide derivatives having acetylenic amic acid groups. Plastics Engineering Company, Walter J Monacelli, March 23, 1982: US04321198 (7 worldwide citation)

Novel compositions comprising acetylenic polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups ...



Click the thumbnails below to visualize the patent trend.