Toyo Boseki Kabushiki Kaisha

Kunio Kimura

Keiichi Uno

Takeshi Ito

Kiyoshi Hotta

Minako Arichi

Tomohiro Aoyama

Toshihiko Ohta

Hideo Isoda

Mitsuhiro Sakuda

Tadaaki Hamaguchi

Yasuo Kato

Michio Kobayashi

Seiji Sawahara

Yoshihiro Amagi

Kenji Tanaka

Seiji Endoh

A polymer having a blocked terminal group according to the present invention, represented by the following Formula (I): ##STR1## where R is an alkylene group containing 1 to 20 carbon atoms; X.sub.1 is an acyl group containing 2 to 50 carbon atoms; Y is H, an alkyl group containing 1 to 50 carbon atoms or an alkenyl group containing 1 to 50 carbon atoms; m is a positive integer; and n.sub.1 is 0 or a positive integer.

Polymer containing lactic acid as its constituting unit and method for

A recyclable vehicular cushioning material which is thermoformed from a web composed of three-dimensionally crimped polyester fiber having a fineness lower than 45 denier per filament and an initial tensile strength (IS) higher than 30 g/d and heat-bonding fiber containing polyester elastomer, as heat-bonding component, which are mixed and dispersed and, if necessary, interlaced, said cushioning material having a layer whose bulk density is 0.02-0.06 g/cm.sup.3.

Recyclable vehicular cushioning material and seat

A crystalline polymeric whisker comprising repeating units derived from a compound selected from the group consisting of p-oxybenzoyl and 2-oxy-6-naphthoyl, which has high elasticity and tenacity as well as good heat resistance.

Polymeric whisker and production of the same

Growing community of inventors

Ohtsu, Japan

Kunio Kimura