Kuraray Co., Ltd.

Kunihiko Shimamura

Hiroshi Itoh

Shiro Ogawa

Tooru Tanokura

Syuji Kawai

Takashi Saeki

Seio Anzai

Tohru Tanokura

Yuji Ohno

Toshiaki Sato

Tohei Moritani

Keiji Matsumura

Kenji Shirano

Toshinori Ishii

Tadanori Kunikawa

Toshimasa Kanemitsu

The mold-in fastening member comprises a substrate having engaging elements on a top surface thereof and a foamed synthetic resin layer bonded to a rear surface of the substrate. The foamed synthetic resin layer has overhanging marginal portions or sealing portions extending outwardly beyond at least both lateral edges of the substrate. The foamed synthetic resin layer has a thickness of 1 to 10 mm and an initial compressive modulus of 0.02 to 1.0 MPa. The mold-in fastening member surely prevents a molding resin from entering through gaps between the mold-in fastening member and a recess formed in a mold.

Mold-in fastening member and process for producing molded resin article having the same

Connected fastening members and method for mold-in articles. The connected fastening members include a plurality of mold-in fastening members each having a substrate and a predetermined number of engaging elements formed on a first or front surface of the substrate. The mold-in fastening members are connected with each other by a connecting member that is disposed on a second or the back surface thereof. Using the connected fastening members, a plurality of the fastening members can be easily fit to a recessed portion of a mold in a single operation, resulting in improved working efficiency.

Connected fastening members and process for production of resin molded article with fastening member

The mold-in fastening member, that can be molded into a resin article, of the present invention comprises (a) a substrate having a front surface and a back surface; (b) a plurality of engaging elements provided on the front surface; (c) a plurality of anchoring elements provided on the back surface, the anchoring elements being embedded into the resin article to fix the mold-in fastening member thereto; (d) a ferrite-containing layer formed on the front surface; (e) marginal portions continuously extending along respective lengthwise edges of the substrate; and (f) grooves formed on the substrate, which extend along the respective marginal portions to render the marginal portions easily bending relative to the substrate. The fastening member is easily placed in position on shoulders of a recess formed on a mold and protects the engaging elements from being buried or contaminated by a foaming resin because the ingress of the foaming resin into the recess is effectively prevented due to the close contact of the marginal portions with the shoulders. The fastening member of the present invention is small in size and improve the productivity, safety and working efficiency of the production of molded resin articles having mold-in fastening members.

Mold-in fastening member and production of molded resin article having mold-in fastening member

A fastener member for molding which is a fastener tape which includes engaging elements on a top side of its substrate and also includes ridges which extend in a longitudinal direction on both edges of a back side of the substrate. The ridges project outwardly such that its outermost part is about 0.3-5 mm from the outer edge of the substrate. A process for producing a plastic molded article having the fastener members molded thereon, comprises fitting the above-mentioned fastener member in the recess of a mold such that the engaging elements on its surface are directed to the recess of the mold and the ridges of the fastener member substantially seal the gap between the fastener member and the sidewall of the recess of the mold, and injecting a resinous composition into the mold.

Fastener member for molding and production of plastic molded article

A molded-resin separable fastener comprising a substrate and, provided vertically on at least one surface thereof, a plurality of straight wall-like fastening elements arranged parallel with each other at regular intervals and with an umbrella-like or hook-like cross-sectional shape, the configurational parameters of which are specified such that when 2 sheets of the molded-resin separable fasteners are faced and engaged with each other the fasteners are relatively slidable in the longitudinal direction and slightly movable in the transverse direction.

Molded-resin separable fastener and fastening system utilizing the same

The tube of the present invention has no or very small local minute nonuniformity in thickness of EVOH layer, and therefore drawn-formed articles such as blow bottle obtained by draw molding the tube have no streaks and are superior in appearance.

Multilayered tube for draw molding and multilayered container utilizing

An injection stretch blow container consisting of a combination of 97 to 70 parts by weight of saturated polyester and 3 to 30 parts by weight of a saponification product of an ethylene-vinyl acetate copolymer, said container having many areas, particularly at the body wall portion of said container in each of which areas substantially two-dimensional thin layers of said saponification product of said ethylene-vinyl acetate copolymer are laminated in parallel to the wall surface of said container in a matrix of saturated polyester, said saponification product of said ethylene-vinyl acetate copolymer in said area (20.times.20.mu.; vertical section or longitudinal section of the body wall of said container) is 0.001 to 1 .mu.m in average thickness and at least 5 in average aspect ratio and the laminated structural index represented by the following formula is at least 5:

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Sakai, Japan

Kunihiko Shimamura