摘要:
A polyolefin resin composition containing a polyolefin resin, 0.03 to 60 wt. % of a double hydroxide comprising lithium, aluminum and at least one element selected from the group consisting of alkaline earth elements, transition metals, Zn and Si, and 0.02 to 5 wt. % of a hindered amine compound, which has good weather resistance and useful as a material for the production of films, in particular, agricultural films.
摘要:
A polyolefin resin covering film having a first layer of a polyolefin resin and second and third layers which are provided on respective sides of the first layer and made of a polyolefin resin containing 20 wt. % or less of a polar group-containing vinyl monomer, in which the polyolefin resin covering film contains 6 to 50 wt. % of a IR absorber based on the weight of the covering film, and has a IR absorbance of 70 to 85 % at 27°C, which covering film is preferably used as a covering film of a green house or tunnel for protected horticulture to raise a strong-light produce.
摘要:
An insect-repelling film or sheet which has a reflective spectrum in the ultraviolet region at a wavelength of less than 0.4 µm, particularly a reflective spectrum peak at a wavelength of less than 0.4 µm, a reflective spectrum with a ratio R A /R B of not less than 1.4 wherein R A is the ultraviolet reflectance and R B is the visible light reflectance at a wavelength of 0.5 µm, and a visible light transmission of not less than 40 %,is useful as a cover for greenhouses and tunnels or for mulching of the ground for crop culture or as a repellent for various insect pests in agriculture, forestry and gardening.
摘要:
Provided is an incineratable polyolefin resin composition containing a fluoroalkyl group-containing compound. The resin composition comprises a polyolefin resin, an inorganic compound having silicon-oxygen bond or aluminium-oxygen bond, and a fluoroalkyl group-containing compound.
摘要:
A mulching film which comprises a reflective film layer having a reflective peak at a wavelength of less than 0.4 µm and a reflective spectrum with a ratio R A /R B of not less than 1.4 wherein R A is the ultraviolet peak reflectance and R B is the visible light reflectance at a wavelength of 0.5 µm and a black film layer, which is effective for repelling insects harmful to various crops and other plants by covering the ground of plantation and for lowering the underground temperature and also for the prevention of the propagation of weeds.
摘要:
An agricultive film which can prevent fog generation in horticultural enclosures comprising a polyolefin resin, an omega -hydroperfluoroalkyl group containing fluorine compound surfactant and a non-ionic dripping agent.
摘要:
Disclosed is an infrared absorbing film comprising a synthetic resin and silicon oxide, wherein the silicon oxide is used in an amount of about 2 to about 25% by weight based on the synthetic resin, and wherein the silicon oxide is produced by underwater grinding, has an average particle size of not more than 4 µm, is substantially free of particles exceeding 20 µm in average particle size, and has a specific surface area of not more than 20 m²/g. The film may further comprise a transparent resin layer formed over at least one surface thereof.
摘要:
Disclosed is an infrared absorbing film comprising a synthetic resin and silicon oxide, wherein the silicon oxide is used in an amount of about 2 to about 25% by weight based on the synthetic resin, and wherein the silicon oxide is produced by underwater grinding, has an average particle size of not more than 4 µm, is substantially free of particles exceeding 20 µm in average particle size, and has a specific surface area of not more than 20 m²/g. The film may further comprise a transparent resin layer formed over at least one surface thereof.
摘要:
An agricultive film which can prevent fog generation in horticultural enclosures comprising a polyolefin resin, an ω-hydroperfluoroalkyl group containing fluorine compound surfactant and a non-ionic dripping agent.