A polyethylene fiber characterized by having an intrinsic viscosity [] of 0.8 dL/g or more and less than 5 dL/g; being composed of a repeating unit substantially derived from ethylene; having pores formed inside of the fiber; having an average diameter of the pores of ranging from 3 nm to 1 m when the diameter is measured, by each pore being approximated by a column, at a contact angle of 140 degrees, in a mercury intrusion method; a porosity of the pores of ranging from 1.5% to 20%; and having a tensile strength greater than or equal to 8 cN/dtex.

The invention relates to a method for manufacturing a composite sheet comprising high performance polyethylene fibres and a polymeric resin comprising the steps of assembling HPPE fibres to a sheet, applying an aqueous suspension of a polymeric resin to the HPPE fibres, partially drying the aqueous suspension, optionally applying a temperature and/or a pressure treatment to the composite sheet wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene. The invention further relates to composite sheets obtainable by said method and articles comprising the composite sheet such as helmets, radomes or a tarpaulins.

The invention relates to a method for manufacturing a composite sheet comprising high performance polyethylene fibres and a polymeric resin comprising the steps of assembling HPPE fibres to a sheet, applying an aqueous suspension of a polymeric resin to the HPPE fibres, partially drying the aqueous suspension, optionally applying a temperature and/or a pressure treatment to the composite sheet wherein the polymeric resin is a homopolymer or copolymer of ethylene and/or propylene. The invention further relates to composite sheets obtainable by said method and articles comprising the composite sheet such as helmets, radomes or a tarpaulins.

Pigment compositions and fibers may include a single pigment component comprising a cobalt titanium oxide complex or a tin titanium zinc oxide complex. The pigment compositions may additionally include one or more additives having compatibilizer, adhesion promoting, and/or dispersion aiding capabilities, and a carrier resin.

Pigment compositions and fibers may include a single pigment component comprising a cobalt titanium oxide complex or a tin titanium zinc oxide complex. The pigment compositions may additionally include one or more additives having compatibilizer, adhesion promoting, and/or dispersion aiding capabilities, and a carrier resin.

Provided is a colored polypropylene resin composition, which is excellent in high color developability, washing resistance, and sublimation resistance, and can be stably supplied. The colored polypropylene resin composition includes a polypropylene resin and a colorant, and is characterized by including a compound having a predetermined structure as the colorant.