A high density ethylene polymer blend having improved impact strength and environmental stress crack resistance comprises a high molecular weight, non-elastomeric ethylene/propylene copolymer having a crystallinity of at least 5 percent and an intermediate molecular weight, high density ethylene pol ...
A container having a double wall construction of a structural plastic material is provided with improved thermal insulative properties by (1) metallizing at least one surface of each wall of the container with metal such as silver to provide a light reflective surface and to produce a partial barrie ...
A container having a double wall construction of a structural plastic material is provided with improved thermal insulative properties by (1) metallizing at least one surface of each wall of the container with metal such as silver to provide a light reflective surface and to produce a partial barrie ...
A light weight coating comprising a convenient binder such as starch and small colorless plastic, polymeric particles which remain discrete and retain a diameter of about one wavelength of visible light. The coating, prepared by dispersing the plastic, polymeric particles in an aqueous media contain ...
Improved polymeric pigments for use in paper coatings are provided by an emulsion polymerization process comprising the steps of (1) emulsion polymerizing at least 50 weight percent of total monomer in absence of emulsifier, (2) adding an emulsifier and (3) continuing emulsion polymerization of the ...
Reinforcing fibers are incorporated into olefin polymers such as polyethylene by blending the fibers with the polyethylene in the form of a high bulk density, extrudable powder in which the particles posses a high degree of porosity. Thus prepared, the blends are ready for fabrication into reinforce ...
Thermoplastic containers are filled with materials such as particulate solids or liquids under vacuum and hermetically sealed in rapid succession by an apparatus having means for evacuating the container, means for filling and hermetically sealing the evacuated containers while retaining the vacuum.
Improved polymeric pigments for use in paper coatings are provided by a soap-free, emulsion polymerization process comprising the steps of (1) emulsion polymerizing at least 20 weight percent of total emulsion polymerizable monomer, (2) adding fluid base and (3) continuing emulsion polymerization of ...
High bulk density powders of normally solid, olefin polymers such as polyethylene are provided by polymerizing the olefin under low pressures ranging from about 5 to about 30 atmospheres in the presence of trialkyl aluminum and a titanium-containing catalyst component which has been prepared from ti ...
