摘要:
The present invention provides polyolefin resin compositions, comprising (i) a polymer containing an alkenysilane compound and an inorganic filler and (ii) a polyolefin compound which provide molded articles having excellent Izod impact strength, tensile yield strength and stiffness and are also useful for the production of surface-coated molded articles.
摘要:
The present invention relates to a process for preparing a silicon containing polymer by polymerizing an alkenylsilane or by copolymerizing an alkenylsilane and an α-olefin in the presence of a catalyst comprising (a) a titanium compound supported on a carrier of magnesium halide containing composition, and (b) an organic aluminum compound.
摘要:
The present invention relates to the use of a polyolefin resin composition comprising a random copolymer of an alkenylsilane compound and an α-olefin compound as a material for adhesion or a coating material.
摘要:
A method for preparing molded articles of a cross-linked polyolefin involves mixing polyolefin granules comprising polyolefin granules containing a hydrosilylation catalyst, polyolefin granules containing the copolymer of an alkenylsilane and an olefln, and if necessary, polyolefin granules containing neither the hydrosilylation catalyst nor the copolymer of the alkenylsilane and the olefin, and then heating, melting and molding the mixture in a molding machine. Molded articles of the crosslinked polyolefin contain no residual crosslinking agent and have improved heat resistance and mechanical strength can be obtained by the aforesaid method.
摘要:
A method for preparing molded articles of a cross-linked polyolefin involves mixing polyolefin granules comprising polyolefin granules containing a hydrosilylation catalyst, polyolefin granules containing the copolymer of an alkenylsilane and an olefln, and if necessary, polyolefin granules containing neither the hydrosilylation catalyst nor the copolymer of the alkenylsilane and the olefin, and then heating, melting and molding the mixture in a molding machine. Molded articles of the crosslinked polyolefin contain no residual crosslinking agent and have improved heat resistance and mechanical strength can be obtained by the aforesaid method.
摘要:
A stretched film of polypropylene which is excellent in transparency, substantially free of an antiblocking agent and at least uniaxialy stretched and which is characterized in that it has uniformly distributed projections having a height ranging from 0.05 to 0.50 µ and a width ranging from 10 to 100 µ at least on the surface thereof as well as a method for preparing the foregoing stretched film of polypropylene which comprises the steps of forming, into a sheet, polypropylene which comprises a nucleating agent in an amount selected so that the crystallization temperature of polypropylene is increased by 1 to 10°C by the addition thereof and then stretching the sheet at a temperature ranging from 140 to 165 °C are herein disclosed.
摘要:
A process for producing crosslinked polyolefins having improved physical properties is disclosed. The process comprises irradiating a copolymer of alkenylsilane and an olefin, or a mixture of the copolymer and a polyolefin devoid of alkenylsilane segments.
摘要:
A process for producing crosslinked polyolefins having improved physical properties is disclosed. The process comprises irradiating a copolymer of alkenylsilane and an olefin, or a mixture of the copolymer and a polyolefin devoid of alkenylsilane segments.