Abstract: A resin safety shoe toe cap made from a fiber-reinforced thermoplastic resin, wherein the toe cap resin safety shoe toe cap is constituted from rising parts comprising a front end rising part 1, a big toe side rising part 2 and a little toe side rising part 3; a top part 6; and a base part 5, wherein the thickness of the big toe side rising part 2 is made to be greater than the thickness of the little toe side rising part 3. Moreover, the big toe side rising part 2 and the little toe side rising part 3 are connected to the front end rising part 1 by curved surface parts 4 having different curvatures, and the rising parts are formed so as to rise up approximately perpendicularly to the base part 5. The safety shoe toe cap not only satisfies the performances in L-class and S-class of JIS T 8101, but also the impact resistance and compression resistance performances stipulated in H-class of JIS T 8101 and safety shoe standards in the CEN Standard, without impairing the ability to fit to shoes and wearer's feet.

Abstract: A resin safety shoe toe cap made from a fiber-reinforced thermoplastic resin, wherein the toe cap resin safety shoe toe cap is constituted from rising parts comprising a front end rising part 1, a big toe side rising part 2 and a little toe side rising part 3; a top part 6; and a base part 5, wherein the thickness of the big toe side rising part 2 is made to be greater than the thickness of the little toe side rising part 3. Moreover, the big toe side rising part 2 and the little toe side rising part 3 are connected to the front end rising part 1 by curved surface parts 4 having different curvatures, and the rising parts are formed so as to rise up approximately perpendicularly to the base part 5. The safety shoe toe cap not only satisfies the performances in L-class and S-class of JIS T 8101, but also the impact resistance and compression resistance performances stipulated in H-class of JIS T 8101 and safety shoe standards in the CEN Standard, without impairing the ability to fit to shoes and wearer's feet.

Abstract: A reinforcing tape for a slide fastener comprises a polyamide elastomer film manifesting a modulus of elasticity in bending in the range of 6,000 to 9,000 kg/cm2 and an adhesive layer. In a preferred embodiment, a polyester hot-melt adhesive is used for the adhesive layer. Preferably an intermediate layer having a thickness thinner than the thickness of the polyamide elastomer film and that of the adhesive layer is interposed between the polyamide elastomer film and the adhesive layer. In this case, a polyester anchor coat agent is used for the intermediate layer.

Abstract: A method for the production of a toe cap for a safety shoe comprises placing a fibrous pellet material of a long fiber-reinforced thermoplastic resin in a pseudo-forming mold, compressing the fibrous pellet material therein under application of heat to primarily form a pseudo-toe cap, setting the resultant pseudo-toe cap in position in a mold for forming a toe cap for a safety shoe, and applying pressure and heat to the pseudo-toe cap to compression mold a toe cap for a safety shoe. By this method, there is obtained the toe cap made of a long fiber-reinforced thermoplastic resin in which the proportion of the content of reinforcing fibers in a skirt part to that in a main body part is in the range of 70 to 100%.

Abstract: An object of the present invention is to provide a linear slide fastener capable of maintaining a stabilized condition in which an attachment yarn for attaching a fastener element is never out out by abrasion due to a contact with other object or sliding of a slider. A coil-like or zigzag-like linear fastener element row is attached to a fastener tape with a multi-filament attachment yarn or a sewing yarn of double lock sewing system. Then, synthetic resin material having adhesive property is applied to an entangled portion between a looper yarn disposed on the linear fastener element row and a needle yarn so as to permeate the entangled portion and harden. Consequently, the attachment yarn is coated and fixed with the synthetic resin material, As the attachment yarn, a weaving yarn or a warp knitting yarn is used. The synthetic resin material is applied to the entangled portion or an intersecting portion so as to permeate them.

Abstract: In a fastener product made of a synthetic resin such as a slide fastener, a separable fastener and a snap tape comprising an attachment part and an engagement part, at least the engagement part is made of a hydrolysis-resistant synthetic resin. Preferably, the hydrolysis-resistant synthetic resin is polyester having a carbodiimide-based hydrolytic stabilizing agent incorporated therein. In a slide fastener having a pair of fastener tapes and coupling elements fixed to the longitudinal edges of the fastener tapes, they are made of a hydrolysis-resistant synthetic resin material. When the slide fastener further comprises upper and lower stop members, a pin-and-box separator, a pair of reinforcing sheet-like members, sewing threads and core cords, they are made of the hydrolysis-resistant synthetic resin material.

Abstract: A reinforcing tape for a slide fastener comprises a polyamide elastomer film manifesting a modulus of elasticity in bending in the range of 6,000 to 9,000 kg/cm2 and an adhesive layer. In a preferred embodiment, a polyester hot-melt adhesive is used for the adhesive layer. Preferably an intermediate layer having a thickness thinner than the thickness of the polyamide elastomer film and that of the adhesive layer is interposed between the polyamide elastomer film and the adhesive layer. In this case, a polyester anchor coat agent is used for the intermediate layer.

Abstract: A formed article of fiber-reinforced thermoplastic resin which has been adapted for use in a sliding member by restoring the wear resistance once degraded by the addition of reinforcing fibers to the normal level is disclosed. This formed article comprises a fiber-reinforced resin material of a thermoplastic resin containing reinforcing fibers and incorporating therein additionally as a sliding property-imparting agent a material having a storage elastic modulus in the range of 3.5×108 Pa to 5.0×108 Pa in a service temperature range of 30° C. to 70° C. The ratio of incorporation of the sliding property-imparting agent is properly in the range of 4 to 10% by weight when the matrix resin is a polyamide-based resin or 4 to 20% by weight when the matrix resin is a thermoplastic resin other than the polyamide-based resin, respectively based on the total weight of the resin and the reinforcing fibers.

Abstract: A formed article of fiber-reinforced thermoplastic resin which has been adapted for use in a sliding member by restoring the wear resistance once degraded by the addition of reinforcing fibers to the normal level is disclosed. This formed article comprises a fiber-reinforced resin material of a thermoplastic resin containing reinforcing fibers and incorporating therein additionally as a sliding property-imparting agent a material having a storage elastic modulus in the range of 3.5×108 Pa to 5.0×108 Pa in a service temperature range of 30° C. to 70° C. The ratio of incorporation of the sliding property-imparting agent is properly in the range of 4 to 10% by weight when the matrix resin is a polyamide-based resin or 4 to 20% by weight when the matrix resin is a thermoplastic resin other than the polyamide-based resin, respectively based on the total weight of the resin and the reinforcing fibers.

Abstract: An object of the present invention is to provide a linear slide fastener capable of maintaining a stabilized condition in which an attachment yarn for attaching a fastener element is never cut out by abrasion due to a contact with other object or sliding of a slider. A coil-like or zigzag-like linear fastener element row is attached to a fastener tape with a multi-filament attachment yarn or a sewing yarn of double lock sewing system. Then, synthetic resin material having adhesive property is applied to an entangled portion between a looper yarn disposed on the linear fastener element row and a needle yarn so as to permeate the entangled portion and harden. Consequently, the attachment yarn is coated and fixed with the synthetic resin material. As the attachment yarn, a weaving yarn or a warp knitting yarn is used. The synthetic resin material is applied to the entangled portion or an intersecting portion so as to permeate them.

Abstract: Disclosed is a formed article made of a biodegradable resin material which maintains strength sufficient for practical use and, when discarded after use, succumbs to decomposition by the action of microorganisms occurring in the physical world without bringing destruction on the physical environment or inducing public nuisance in consequence of the decomposition. The formed article is formed of a multicomponent polymer material comprising a continuous phase and a disperse phase; the continuous phase is made of a polybutylene succinate type and/or polyethylene adipate type aliphatic polyester and the disperse phase is made of polylactic acid. The continuous phase may comprise the aliphatic polyester containing such an inorganic filler as talc or calcium carbonate. The formed article of biodegradable resin constructed as described above may be manufactured in arbitrarily selected shapes and used for products in various fields, particularly for slide fasteners and separable fasteners.

Abstract: Disclosed is a recyclable slide fastener having substantially all the component parts thereof made of the same type of synthetic resin material. In the fundamental embodiment of the slide fastener having a pair of fastener tapes and coupling elements fixed to the longitudinal edges of the fastener tapes, they are made of a synthetic resin material of the same type selected from the group consisting of a polyamide resin, a polyester resin, a polyolefin resin, and a vinyl chloride resin. When the slide fastener comprises sewing threads for the fixation of the coupling elements to the fastener tapes and/or core cords extended as inserted through the individual coupling elements, they are made of the same type of synthetic resin as the fastener tapes and the coupling elements.