Nippon Petrochemicals Company, Limited

Tsutomu Miyamoto

Fuyuki Aida

Masaaki Miyazaki

Hiroshi Shimizu

Isoo Shimizu

Atsushi Sato

Suehiro Sakazume

Katsufumi Suga

Masato Katou

Fusao Tokuhiro

A method for laminating a porous sheet 1 and a coarse mesh reinforcing material 2 which includes an adhesive layer and is reinforced by drawing, by heat pressing with that adhesive layer in between, in which, (1) the heating temperature during heat pressing is equal to or above the melting point of the adhesive layer and equal to or below the melting point of the porous sheet, (2) a specific relationship is maintained among the difference between the heating temperature and the melting point of the adhesive layer, the difference between the heating temperature and the softening point of the porous sheet, and the heating time, and (3) the unrolling tension of the porous sheet is maintained at 200 to 550 g/mm.sup.2. The method allows a reinforced laminated material that retains moisture permeability and has excellent mechanical strength to be obtained inexpensively without the occurrence of wrinkling or remarkable curling

Method for laminating porous sheet and coarse mesh reinforcing material

A monoaxially oriented material of a longitudinally monoaxially oriented reticular web (a), a transversely monoaxially oriented reticular web (b) or a monoaxially oriented multi-layer tape (c) which comprises a polypropylene resin layer and an adhesive layer comprising a mixture of polypropylene resin and polyethylene resin and laminated on one surface or both surfaces of the polypropylene resin layer, and a polypropylene woven or non-woven fabric prepared by laminating crosswise or weaving the monoaxially oriented materials with interposing the adhesive layer so that the orientation axes of the materials may intersect; and a method for preparing the polypropylene woven or non-woven fabric and a heat-resistant reinforced laminate material.

Polypropylene monoaxially oriented material, woven or non-woven fabric,

A thermoplastic resin composition for extrusion molding superior in the balance of mechanical properties and moldability is obtained by using a partially crosslinked product obtained by dynamically heat-treating:

Thermoplastic resin composition for extrusion molding

A composition for injection molding well-balanced in rigidity, impact resistance, appearance of molded products and moldability is obtained by using as an essential component a partially crosslinked product being prepared by dynamically heat-treating:

Composition for injection molding

A thermoplastic resin composition well-balanced in rigidity, resistance to impact and to heat, dimensional stability, flame retardance and moldability, prepared by incorporating an inorganic filler and/or a flame retardant into a thermoplastic resin composition containing a partially crosslinked product obtained by dynamically heat-treating a thermoplastic resin and/or a rubbery substance in the presence of at least one crosslinking agent selected from a dihydroaromatic series compound or a polymer thereof, an ether series compound, a tetrahydroaromatic series compound, and a cyclopentane series compound, and also in the presence of a polyfunctional monomer.

Filler-incorporated thermoplastic resin composition

A process for wet oxidation of a liquid waste effluent using a vertical-type pressure-proof container in which a free space is provided at each of the axial lower and upper ends and the remaining space between the axial ends is divided into at least two spaces, at least one serving as an effluent-descending space and the other as an effluent-ascending space, by furnishing at least one partition, which process comprising introducing a liquid waste effluent and circulating the effluent through the effluent-descending space, lower free space, effluent-ascending space and upper free space while oxidizing the effluent with an oxidizing gas ejected upward into the effluent-ascending space and withdrawing the oxidized effluent and used oxidizing gas through an outlet provided at the top of the container.

Growing community of inventors

Ibaragi, Japan

Tsutomu Miyamoto