Canon Kabushiki Kaisha

Katsuhiro Matsuda

Takeshi Komuro

Toshinari Miura

Hirohide Matsuhisa

Hitoshi Horie

Kenji Ito

Atsushi Fuseya

Kie Yutaka

Hiroshi Shinagawa

Sumire Kubota

Provided is a polymer compound having a furan ring having a degree of polymerization of 185 or more and 600 or less. This polymer compound has excellent mechanical strength (flexural strength).

Polymer compound and method of synthesizing the same

The present invention provides a flame retardant composition including a flame retardant that is extracted from a plant and can exhibit high flame retardancy. The flame retardant composition includes a flame retardant compound represented by Formula (1) and polybutylene terephthalate. The content of the flame retardant compound is 12% by weight or more and 15% by weight or less based on the total weight of the flame retardant compound and the polybutylene terephthalate. In Formula (1), Rto Rrepresent substituents.

Flame retardant composition

Provided is a flame retardant composition containing a flame retardant compound and a polymer containing styrene or aromatic polyester represented by General Formula (1) 

A flame retardant composition contains the flame retardant described in Claim, aromatic polyester, a styrene polymer, rubber having a siloxane bond, and a fluorine compound.

The present invention provides a chemical sealing film which has high chemical resistance and high breaking strength and which does not contain chlorine. The present invention relates to a chemical sealing film containing an organic compound represented by general formula (1) shown in Claim. In general formula (1), R is a linear alkylene group having carbon atoms of 5 or more and 10 or less and n is an integer of 10 or more and 480 or less.

Chemical sealing film

The invention provides a flame retardant resin composition containing a polyalkylene furan dicarboxylate represented by the following formula (1), an aromatic polycarbonate, a phosphazene compound represented by the following formula (2) and a fluorine-containing compound: wherein m and nare each an integer of 2 or more; wherein nis an integer of 2 or more, and R1 and R2 are each an alkyl group having 1 to 20 carbon atoms or an aryl group.

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Kawasaki, Japan

Katsuhiro Matsuda