Jsr Corporation

Nec Corporation

Ayumi Watanabe

Takuo Sone

Shoichi Matsumoto

Shouichi Matsumoto

Ayumi Hara

Provided is a polymerization catalyst including a metal complex obtained by mixing at least one ketimine derivative selected from the group consisting of a &#x3b2;-ketimine compound and a tautomer thereof with a compound having at least one metal selected from among Group 4 and 5 transitional metals, an organoaluminum compound, and a halogen compound.

Polymerization catalyst, copolymer, polymer composition, and crosslinked polymer

A copolymer having a structural unit derived from a conjugated diene compound and a structural unit derived from an &#x3b1;-olefin having 3 to 8 carbon atoms, wherein the copolymer has a melting point within a temperature range of 0 to 10&#xb0; C. and has a fusion enthalpy of 5 J/g or more as measured on a differential scanning calorimeter under the following conditions. Conditions: (1) cooling from 200&#xb0; C. to &#x2212;150&#xb0; C. at a rate of 10&#xb0; C./min; (2) retaining at &#x2212;150&#xb0; C. for 1 minute; and (3) heating from &#x2212;150&#xb0; C. to 200&#xb0; C. at a rate of 20&#xb0; C./min.

Copolymer, polymer composition, and crosslinked polymer

An Asynchronous Transfer Mode-Local Area Network (ATM-LAN) connection apparatus is connected between an ATM terminal of a LAN emulation protocol and an ATM switch connected to ATM terminals of an Internet Protocol (IP) over ATM protocol. The ATM-LAN connection apparatus includes ATM physical layer sections for transmission and reception of an ATM cell, AAL5-SAR sections for reassembly and segmentation of an AAL5 packet, a LAN emulation protocol processing section for performing minimum LAN emulation protocol processing with respect to the specific ATM terminal, an IP over ATM protocol processing section, and a bridging section for frame format conversion between both the protocols.

Growing community of inventors

Tokyo, Japan

Ayumi Watanabe