Takemoto Yushi Kabushiki Kaisha

Other

Shigeru Imamura

Mitsuo Kinoshita

Hirokazu Matsueda

Masato Sugiura

Yuji Takayama

Fumitoshi Sugiura

Hideo Shimizu

A hardenable unsaturated polyester resin composition contains block copolymers and unsaturated polyester. The block copolymer includes both polyester blocks and a polydiene block as constituent segments.

Hardenable unsaturated polyester resin compositions

An antistatic resin composition with transparency contains 90-99.9 wt % of a synthetic resin selected from polycarbonate or polymethyl methacrylate and 0.1-10 wt % of a heat-resistant antistat containing phosphonium sulfonate shown by the general formula (I) below: ##STR1## where A is alkyl group with 1-36 carbon atoms, alkenyl group with 4-24 carbon atoms, phenyl group, phenyl group substituted by alkyl group with 1-18 carbon atoms, naphthyl group or naphthyl group substituted by alkyl group with 1-18 carbon atoms, R.sup.1, R.sup.2 and R.sup.3 are identical, each being an aliphatic hydrocarbon group with 1-8 carbon atoms or aromatic hydrocarbon group, and R.sup.4 is a hydrocarbon group with 1-18 carbon atoms.

Antistatic resin composition with transparency containing phosphonium

An additive for synthetic resins includes a [liquid rubber]/[polyester] block copolymer comprising block liquid rubber compound parts and block polyester parts as constituent segments. One or more of these polyester blocks are connected to each one of the polydiene block parts through ester bond.

Additives for synthetic resins

An additive for synthetic resins contains a block copolymer having as its constituent segments both polyester block obtainable by ring-opening polymerization of .epsilon.-aliphatic lactone and polydiene block. One or more of these polyester blocks are connected to the polydiene block through ester bond and at least one of these polyester blocks has at its end a reactive group such as vinyl group, epoxy group, isocyanate group or carboxyl group.

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Aichi, Japan

Shigeru Imamura